Overview
| historic_core | letter-code (VCR, VCC, VCE, VCS, HMR, HMC, HM-MU, VCP) |
|---|---|
| historic_urban | use-type-index (HU-RS, HU-RD1/2, HU-RM1/2, HU-B1A/B1, HU-MU) |
| suburban | use-type-index (S-RS, S-RD, S-RM1/2, S-B1/2, S-MU) + lake-area variants (S-L*) |
| commercial | use-type-index (C-1/2/3, MU-1/2, EC, MC, MS, LS) |
| industrial | letter-code (LI, HI, MI, BIP) |
| cbd | use-type-index (CBD-1 through CBD-7) |
NOLA CZO is structurally euclidean (use-based zoning with bulk/yard tables per Articles 7-17) but with form-based elements in the Vieux Carré (build-to-wall, height-from-grade, no setbacks) and the Vieux Carré Commission as a separate constitutional design-review layer. Article 5 Planned Development standards offer a PD path that supplements (not replaces) base districts. Classified hybrid-pd per Spec-02.
- Hybrid code per Spec-02: euclidean base districts in Articles 7-17, with form-based / historic-core elements in VCR/HMR/VCC and contextual front-yard averaging (§11.3.A.2) in Historic Urban Neighborhoods. Vieux Carré + Historic Marigny/Tremé/Bywater districts use build-to-wall (zero setbacks) and design review (Vieux Carré Commission, HDLC).
- Parking exemption in Historic Core, HU-B1A, and Central Business Districts per §22.5.A.1 — these districts have zero off-street parking minimum, a major departure from typical CZO rosters elsewhere. HMC-2 and HM-MU are NOT eligible for this blanket exemption (carved out in §22.5.A.1).
- Below-sea-level / FEMA SFHA: virtually all populated Orleans Parish is in FEMA-mapped Special Flood Hazard Area. M-MU district explicitly references Base Flood Elevation (BFE+35') as the height datum rather than grade. The City of New Orleans floodplain ordinance + 44 CFR 60.3 NFIP minimums establish freeboard requirements over BFE.
+ 14 more in Quirks & notes
Districts
| Code | Name | Category | Min lot | Height | Coverage | FAR | Du/ac | Parking | Setbacks F/S/R |
|---|---|---|---|---|---|---|---|---|---|
| OS-N | Neighborhood Open Space District | spec | —[4] | 35 ft[5] | — | — | — | —[6] | 15[1] / 20[2] / 20[3] |
| OS-G | Greenway Open Space District | spec | —[10] | 35 ft[11] | — | — | — | — | 10[7] / 10[8] / 10[9] |
| OS-R | Regional Open Space District | spec | 1,089,000 sf[15] | —[16] | — | — | — | — | 20[12] / 20[13] / 20[14] |
| NA | Natural Areas District | spec | 43,560 sf[20] | 35 ft[21] | — | — | — | — | 20[17] / 20[18] / 25[19] |
| GPD | General Planned Development District | spec | 43,560 sf[25] | 35 ft[26] | — | — | — | — | 20[22] / 20[23] / 20[24] |
| OS-CBD | Central Business Open Space District | spec | —[30] | 35 ft[31] | — | — | — | — | 20[27] / 20[28] / 20[29] |
| OS-AR | Armstrong Regional Park District | spec | 1,089,000 sf[35] | —[36] | — | — | — | — | 20[32] / 20[33] / 20[34] |
| R-RE | Rural Residential Estate District | res_sf | 87,120 sf[40] | 35 ft[41] | —[42] | — | — | 1[43] | 20[37] / —[38] / 40[39] |
| M-MU | Maritime Mixed-Use District | spec | —[47] | —[48] | —[49] | — | — | 1[50] | —[44] / —[45] / —[46] |
| VCR-1 | Vieux Carré Residential District 1 | spec | 1,500 sf[54] | 50 ft[55] | — | —[56] | — | 0[57] | —[51] / —[52] / —[53] |
| VCR-2 | Vieux Carré Residential District 2 | spec | 1,500 sf[61] | 50 ft[62] | — | —[63] | — | 0[64] | —[58] / —[59] / —[60] |
| HMR-1 | Historic Marigny/Tremé/Bywater Residential District 1 | spec | 1,500 sf[68] | 40 ft[69] | — | 1.3[70] | — | 0[71] | —[65] / —[66] / —[67] |
| HMR-2 | Historic Marigny/Tremé/Bywater Residential District 2 | spec | 1,500 sf[75] | 50 ft[76] | — | 2[77] | — | 0[78] | —[72] / —[73] / —[74] |
| HMR-3 | Historic Marigny/Tremé/Bywater Residential District 3 (small-MF) | spec | 2,000 sf[82] | 40 ft[83] | — | 1.4[84] | — | 0[85] | —[79] / 3[80] / 20[81] |
| VCC-1 | Vieux Carré Commercial District 1 | com | —[89] | 50 ft[90] | — | — | — | 0[91] | —[86] / —[87] / —[88] |
| VCC-2 | Vieux Carré Commercial District 2 | com | —[95] | 50 ft[96] | — | — | — | 0[97] | —[92] / —[93] / —[94] |
| VCE | Vieux Carré Entertainment District | com | —[101] | 50 ft[102] | — | — | — | 0[103] | —[98] / —[99] / —[100] |
| VCE-1 | Vieux Carré Entertainment District 1 | com | —[107] | 50 ft[108] | — | — | — | 0[109] | —[104] / —[105] / —[106] |
| VCS | Vieux Carré Service District | com | —[113] | 50 ft[114] | — | — | — | 0[115] | —[110] / —[111] / —[112] |
| VCS-1 | Vieux Carré Service District 1 | com | —[119] | 50 ft[120] | — | — | — | 0[121] | —[116] / —[117] / —[118] |
| HMC-1 | Historic Marigny/Tremé/Bywater Commercial District 1 | com | —[125] | 40 ft[126] | — | — | — | 0[127] | —[122] / —[123] / —[124] |
| HMC-2 | Historic Marigny/Tremé/Bywater Commercial District 2 | com | —[131] | 40 ft[132] | — | — | — | 1[133] | —[128] / —[129] / —[130] |
| HM-MU | Historic Marigny/Tremé/Bywater Mixed-Use District | mu | —[137] | 40 ft[138] | — | — | — | 1[139] | —[134] / —[135] / —[136] |
| VCP | Vieux Carré Park District | spec | —[140] | 50 ft[141] | — | — | — | 0[142] | — / — / — |
| HU-RS | Historic Urban Single-Family Residential | res_sf | 5,000 sf[146] | 35 ft[147] | —[148] | — | — | 1[149] | —[143] / 3[144] / 15[145] |
| HU-RD1 | Historic Urban Two-Family Residential 1 | res_mf | 2,000 sf[153] | 35 ft[154] | —[155] | — | — | 1[156] | —[150] / 3[151] / 15[152] |
| HU-RD2 | Historic Urban Two-Family Residential 2 | res_mf | 2,000 sf[160] | 35 ft[161] | —[162] | — | — | 1[163] | —[157] / 3[158] / 15[159] |
| HU-RM1 | Historic Urban Multi-Family Residential 1 | res_mf | 1,250 sf[167] | 40 ft[168] | —[169] | — | — | 1[170] | —[164] / 3[165] / 15[166] |
| HU-RM2 | Historic Urban Multi-Family Residential 2 | res_mf | 800 sf[174] | 48 ft[175] | —[176] | — | — | 1[177] | —[171] / 3[172] / 15[173] |
| HU-B1A | Historic Urban Neighborhood Business A | com | 800 sf[181] | 40 ft[182] | —[183] | — | — | 0[184] | 0[178] / 3[179] / 15[180] |
| HU-B1 | Historic Urban Neighborhood Business | com | 800 sf[188] | 40 ft[189] | — | — | — | 1[190] | 5[185] / 3[186] / 15[187] |
| HU-MU | Historic Urban Mixed-Use District | mu | 800 sf[194] | 40 ft[195] | — | — | — | 1[196] | 5[191] / 3[192] / 15[193] |
| S-RS | Suburban Single-Family Residential | res_sf | 6,000 sf[200] | 35 ft[201] | —[202] | — | — | 1[203] | 20[197] / —[198] / 20[199] |
| S-RD | Suburban Two-Family Residential | res_mf | 2,500 sf[207] | 35 ft[208] | —[209] | — | — | 1[210] | 20[204] / —[205] / 20[206] |
| S-LRS1 | Lakeshore Suburban Single-Family Residential 1 (Lakeview) | res_sf | 4,800 sf[214] | 40 ft[215] | —[216] | — | — | 1[217] | 20[211] / —[212] / 20[213] |
| S-LRS2 | Lakeshore Suburban Single-Family Residential 2 (Lakewood South + Lakewood N West-of-Bellaire) | res_sf | 6,700 sf[221] | 35 ft[222] | —[223] | — | — | 1[224] | 20[218] / —[219] / 20[220] |
| S-LRS3 | Lakeshore Suburban Single-Family Residential 3 (Country Club Gardens / Lakewood N E-of-Bellaire) | res_sf | 5,000 sf[228] | 35 ft[229] | —[230] | — | — | 1[231] | 20[225] / —[226] / 20[227] |
| S-LRD1 | Lake Vista Suburban Two-Family Residential | res_mf | 5,000 sf[235] | 35 ft[236] | —[237] | — | — | 1[238] | 20[232] / —[233] / 20[234] |
| S-LRD2 | Lakewood/Parkview Suburban Two-Family Residential | res_mf | 4,400 sf[242] | 35 ft[243] | —[244] | — | — | 1[245] | 20[239] / —[240] / 20[241] |
| S-RM1 | Suburban Multi-Family Residential 1 | res_mf | 1,250 sf[249] | 40 ft[250] | —[251] | — | — | 1[252] | 20[246] / —[247] / 20[248] |
| S-RM2 | Suburban Multi-Family Residential 2 | res_mf | 1,200 sf[256] | 45 ft[257] | —[258] | — | — | 1[259] | 20[253] / —[254] / 20[255] |
| S-LRM1 | Lake Area Low-Rise Multi-Family | res_mf | 1,000 sf[263] | 40 ft[264] | —[265] | — | — | 1[266] | 20[260] / —[261] / 20[262] |
| S-LRM2 | Lake Area High-Rise Multi-Family | res_mf | 1,000 sf[270] | 90 ft[271] | —[272] | — | — | 1[273] | 20[267] / —[268] / 20[269] |
| S-B1 | Suburban Business 1 (Neighborhood) | com | 10,000 sf[277] | 40 ft[278] | —[279] | — | — | 1[280] | —[274] / —[275] / 20[276] |
| S-B2 | Suburban Pedestrian-Oriented Corridor Business | com | 10,000 sf[284] | 40 ft[285] | —[286] | — | — | 1[287] | —[281] / —[282] / 20[283] |
| S-LB1 | Lake Area Neighborhood Business 1 | com | 5,000 sf[291] | 40 ft[292] | —[293] | — | — | 1[294] | —[288] / —[289] / 20[290] |
| S-LB2 | Lake Area Neighborhood Business 2 | com | 5,000 sf[298] | 55 ft[299] | —[300] | — | — | 1[301] | —[295] / —[296] / 20[297] |
| S-LC | Lake Area General Commercial | com | 20,000 sf[305] | 90 ft[306] | —[307] | — | — | 1[308] | —[302] / —[303] / 20[304] |
| S-LP | Lake Area Neighborhood Park | spec | —[309] | 35 ft[310] | — | — | — | 1[311] | — / — / — |
| S-LM | Lake Area Marina | spec | 20,000 sf[312] | 40 ft[313] | — | — | — | 1[314] | — / — / — |
| C-1 | General Commercial | com | —[318] | 40 ft[319] | — | — | — | 1[320] | —[315] / —[316] / 20[317] |
| C-2 | Auto-Oriented Commercial | com | —[324] | 40 ft[325] | — | — | — | 1[326] | —[321] / —[322] / 20[323] |
| C-3 | Heavy Commercial | com | —[330] | 130 ft[331] | — | — | — | 1[332] | —[327] / —[328] / 20[329] |
| MU-1 | Medium Intensity Mixed-Use | mu | —[336] | 60 ft[337] | — | — | — | 1[338] | —[333] / —[334] / 20[335] |
| MU-2 | High Intensity Mixed-Use | mu | —[342] | 85 ft[343] | — | — | — | 1[344] | —[339] / —[340] / 20[341] |
| EC | Educational Campus | spec | 87,120 sf[348] | —[349] | — | — | — | 1[350] | 10[345] / 10[346] / 20[347] |
| MC | Medical Campus | spec | 87,120 sf[354] | —[355] | — | — | — | 1[356] | 10[351] / 10[352] / 20[353] |
| MS | Medical Service | spec | —[360] | 100 ft[361] | — | — | — | 1[362] | 20[357] / 10[358] / 10[359] |
| LS | Life Science Mixed-Use | mu | 5,000 sf[366] | 100 ft[367] | — | — | — | 1[368] | —[363] / —[364] / 20[365] |
| LI | Light Industrial | ind | 5,000 sf[372] | 75 ft[373] | —[374] | — | — | 1[375] | 20[369] / 15[370] / 20[371] |
| HI | Heavy Industrial | ind | 10,000 sf[379] | —[380] | —[381] | — | — | 1[382] | 20[376] / 20[377] / 20[378] |
| MI | Maritime Industrial | ind | 10,000 sf[386] | —[387] | —[388] | — | — | 1[389] | 20[383] / 20[384] / 20[385] |
| BIP | Business-Industrial Park | ind | 5,000 sf[393] | 75 ft[394] | —[395] | — | — | 1[396] | 20[390] / 0[391] / 20[392] |
| CBD-1 | Core Central Business | cbd | —[400] | —[401] | — | —[402] | — | 0[403] | 0[397] / —[398] / —[399] |
| CBD-2 | Historic Commercial and Mixed-Use | cbd | —[407] | —[408] | — | —[409] | — | 0[410] | 0[404] / —[405] / —[406] |
| CBD-3 | Cultural Arts | cbd | —[414] | —[415] | — | —[416] | — | 0[417] | 0[411] / —[412] / —[413] |
| CBD-4 | Exposition | cbd | —[421] | —[422] | — | —[423] | — | 0[424] | 0[418] / —[419] / —[420] |
| CBD-5 | Urban Core Neighborhood Lower Intensity Mixed-Use | cbd | —[428] | —[429] | — | —[430] | — | 0[431] | 0[425] / —[426] / —[427] |
| CBD-6 | Urban Core Neighborhood Mixed-Use | cbd | —[435] | —[436] | — | —[437] | — | 0[438] | 0[432] / —[433] / —[434] |
| CBD-7 | Bio-Science | cbd | —[442] | —[443] | — | —[444] | — | 0[445] | 0[439] / —[440] / —[441] |
| S-MU | Suburban Mixed-Use | mu | 1,250 sf[449] | 45 ft[450] | — | — | — | 1[451] | —[446] / —[447] / 20[448] |
Confidence: confirmed partial under review not found
Overlays
Geographic mapping per Article 18 §18.3.A; applies to designated suburban corridors
| purpose | Restricts uses within designated suburban corridor segments |
|---|---|
| use_restriction_type | use |
| regulation_mode | supplemental_use_restriction |
Eastern New Orleans designated corridors (Chef Menteur Hwy, I-10 East corridors); see mapping referenced in §18.4.A
| purpose | Use restrictions for Eastern New Orleans corridor revitalization |
|---|---|
| regulation_mode | supplemental_use_restriction |
Designated historic urban corridors (e.g., Magazine, Freret, Oak); see §18.5.A mapping
| purpose | Use restrictions on historic urban commercial corridors |
|---|---|
| regulation_mode | supplemental_use_restriction |
St. Charles Avenue corridor (primarily HU-RM2/HU-MU base districts)
| purpose | Preserve mansion district character; restrict commercial intensification |
|---|---|
| regulation_mode | supplemental_use_restriction |
Mapped residential neighborhoods designated for affordable-housing diversity
| purpose | Affordable housing diversity sub-overlay |
|---|---|
| regulation_mode | supplemental |
Second-tier residential diversity overlay zone
| purpose | Affordable housing diversity (Tier 2) |
|---|---|
| regulation_mode | supplemental |
Bywater / St. Claude / Marigny arts corridors
| purpose | Support arts and culture diversity; allow artist studios, performance |
|---|---|
| regulation_mode | supplemental_use_allowance |
Arts/culture diversity Tier 2
| purpose | Tier 2 arts and culture overlay |
|---|---|
| regulation_mode | supplemental_use_allowance |
Arts/culture diversity Tier 3
| purpose | Tier 3 arts and culture overlay |
|---|---|
| regulation_mode | supplemental_use_allowance |
Arts/culture diversity Tier 4
| purpose | Tier 4 arts and culture overlay |
|---|---|
| regulation_mode | supplemental_use_allowance |
Mississippi River frontage parcels in Algiers, CBD, Bywater, Holy Cross
| purpose | Riverfront design standards; orientation, public access |
|---|---|
| design_review_required | True |
| regulation_mode | design_supplement |
Designated character-preservation corridors per §18.14.A
| purpose | Preserve corridor character via design standards |
|---|---|
| design_review_required | True |
| regulation_mode | design_supplement |
Mapped enhancement corridors (e.g. Tulane Ave, Earhart Blvd) per §18.15.A
| purpose | Corridor enhancement design standards |
|---|---|
| design_review_required | True |
| regulation_mode | design_supplement |
Transformative corridor reinvestment zones
| purpose | Corridor transformation design standards |
|---|---|
| design_review_required | True |
| regulation_mode | design_supplement |
Lafitte Greenway and other designated greenway corridors
| purpose | Greenway-adjacent design standards: orientation, pervious surfaces, fencing transparency |
|---|---|
| design_review_required | True |
| regulation_mode | design_supplement |
Applies to HU-B1A-zoned parcels in designated areas
| purpose | Use restrictions supplementing HU-B1A base |
|---|---|
| regulation_mode | supplemental_use_restriction |
LaSalle Street corridor (Central City)
| purpose | LaSalle Street corridor specific regulations |
|---|---|
| regulation_mode | supplemental |
Magazine Street corridor from Audubon Park to CBD
| purpose | Magazine Street use restrictions |
|---|---|
| regulation_mode | supplemental_use_restriction |
Jackson Avenue corridor (Central City to riverfront)
| purpose | Jackson Avenue use restrictions |
|---|---|
| regulation_mode | supplemental_use_restriction |
Annunciation Street corridor
| purpose | Annunciation Street corridor regulations |
|---|---|
| regulation_mode | supplemental |
Canal Street frontage parcels primarily in CBD-1, CBD-2
| purpose | Height regulation along Canal Street streetwall |
|---|---|
| regulation_mode | height_modifier |
Convention Center frontage and adjacent CBD-4 / CBD parcels
| purpose | Convention Center neighborhood-specific design and use rules |
|---|---|
| regulation_mode | supplemental |
St. Bernard Avenue corridor (7th Ward to Gentilly)
| purpose | St. Bernard Avenue use and design supplement |
|---|---|
| regulation_mode | supplemental |
Middle Harrison Avenue (Lakeview)
| purpose | Middle Harrison Avenue use restrictions |
|---|---|
| regulation_mode | supplemental_use_restriction |
Coronet Court multi-family overlay area
| purpose | Multi-family housing enabling overlay for Coronet Court |
|---|---|
| regulation_mode | use_allowance |
Algiers riverfront parcels (West Bank)
| purpose | Use AND height restrictions for Algiers riverfront |
|---|---|
| regulation_mode | use_and_height_restriction |
French Market parcels (Vieux Carré)
| purpose | French Market specific use and design standards |
|---|---|
| regulation_mode | supplemental |
University area parcels (Tulane, Loyola, Uptown)
| purpose | Modify off-street parking requirements in university area |
|---|---|
| regulation_mode | parking_modifier |
Brown's Dairy redevelopment area (Central City)
| purpose | Brown's Dairy redevelopment-specific overlay |
|---|---|
| regulation_mode | supplemental |
University area parcels (Tulane, Loyola, Uptown)
| purpose | Design standards for university area |
|---|---|
| design_review_required | True |
| regulation_mode | design_supplement |
Fairgrounds Race Course vicinity (Mid-City / Bayou St. John)
| purpose | Fairgrounds-specific land use regulations |
|---|---|
| regulation_mode | supplemental |
Designated MIZ Core and Strong sub-districts (per CPC and Council mapping); affects developments of 10+ dwelling units
| purpose | Mandatory affordable housing set-aside for residential developments of 10+ units |
|---|---|
| unit_threshold | 10 |
| set_aside_pct | 5-10% (varies by sub-district) |
| ami_rental_pct | 60 |
| ami_homeownership_pct | 60 |
| regulation_mode | mandatory_affordability |
FEMA-mapped Special Flood Hazard Area (SFHA) — virtually all of Orleans Parish is in SFHA Zones AE, A, V, or X-shaded
| purpose | NFIP-compliant floodplain management; Base Flood Elevation (BFE) referenced for all habitable construction |
|---|---|
| regulation_mode | federal_floodplain_supplement |
| freeboard_ft | Per City of New Orleans floodplain ordinance + NFIP minimums (44 CFR 60.3); typically BFE+1 or higher |
| citation_to_authority | 44 CFR 60.3; National Flood Insurance Act; FEMA FIRM panels for Orleans Parish |
Vieux Carré (French Quarter) per La. Const. Art. XIV §22A and La. R.S. 33:4083
| purpose | Vieux Carré Commission design review for exterior alterations, demolition, new construction in Vieux Carré (French Quarter) |
|---|---|
| design_review_required | True |
| regulation_mode | design_review_and_approval_authority |
| review_authority | Vieux Carré Commission |
| scope | Exterior tout-court (color, materials, signs, demolition, new construction); does not affect interior |
Local historic districts and individual landmarks designated by HDLC (Lower Garden District, Marigny, Tremé, Bywater, Carrollton, Uptown sub-districts, etc.)
| purpose | Design review for designated local historic districts (outside Vieux Carré); demolition + new construction + exterior alteration approval |
|---|---|
| design_review_required | True |
| regulation_mode | design_review |
| review_authority | Historic District Landmarks Commission |
| districts_managed | Local historic districts outside the Vieux Carré (Marigny, Tremé, Bywater, Carrollton, Uptown, Lower Garden, etc.) |
State preemptions
Adopted building codes
Statewide
Click a code label to open its state-by-state adoption atlas.
Amendment history
| Date | Kind | Citation |
|---|---|---|
| 2026-05-22 | retrieved at | Live retrieval from czo.nola.gov for v2 regen |
| 2023-08-01 | last amended | Most recent ordinance referenced in extracted Article 9 IZ tables: Ord. 29566 ZD 014-23 |
| 2016-08-12 | effective | CZO §1.8 Effective Date — effective date 8 months after adoption |
| 2015-12-07 | adoption | Ord. No. 26,726 MCS, §1, Zoning Docket 081/15 |
Quirks & notes
- Hybrid code per Spec-02: euclidean base districts in Articles 7-17, with form-based / historic-core elements in VCR/HMR/VCC and contextual front-yard averaging (§11.3.A.2) in Historic Urban Neighborhoods. Vieux Carré + Historic Marigny/Tremé/Bywater districts use build-to-wall (zero setbacks) and design review (Vieux Carré Commission, HDLC).
- Parking exemption in Historic Core, HU-B1A, and Central Business Districts per §22.5.A.1 — these districts have zero off-street parking minimum, a major departure from typical CZO rosters elsewhere. HMC-2 and HM-MU are NOT eligible for this blanket exemption (carved out in §22.5.A.1).
- Below-sea-level / FEMA SFHA: virtually all populated Orleans Parish is in FEMA-mapped Special Flood Hazard Area. M-MU district explicitly references Base Flood Elevation (BFE+35') as the height datum rather than grade. The City of New Orleans floodplain ordinance + 44 CFR 60.3 NFIP minimums establish freeboard requirements over BFE.
- Vieux Carré Commission jurisdiction is constitutional, not just statutory — La. Const. Art. XIV §22A (1936 amendment retained in 1974 transition) + La. R.S. 33:4083 give the VCC quasi-constitutional review authority for exterior alterations, demolition, and new construction in the French Quarter. Separate approval from the CZO zoning use approval.
- CBD MINIMUM height of 36' & 3 stories (per Table 17-2) — urban density FLOOR enforcement in the Central Business District. Below-minimum-height structures violate the CZO. Only CBD-4 (Exposition) lacks this minimum.
- Maximum height in CBD-1/2/3/5/6/7 is governed by Figure 17-2 (geographic map) — NOT a single scalar across the district. E.g., the 75/125ft & 6/10 Stories designation along Canal Street creates a stepped-height surface within an 83' distance from street centerline.
- Maximum FAR in CBD-1/2/3/4/5/6/7 governed by Figure 17-3 (also geographic map) — varies by sub-area, with public-benefit FAR bonuses per §17.5 available only in areas regulated by FAR (not by height).
- Front yard via contextual blockface averaging (§11.3.A.2) is widespread in Historic Urban Neighborhood residential districts (HU-RS/RD1/RD2/RM1/RM2) and Article 12-14 non-residential. The scalar 'front_yard_ft' field does NOT capture the rule.
- MIZ (Mandatory Inclusionary Zoning) per Article 28: 10-unit threshold with 5-10% set-aside at 60% AMI (rental + ownership) for designated Core/Strong sub-districts (Tables 9-3, 11-3, 12-3, 13-3, 14-3, 15-3, 17-3). Sub-district MIZ designation varies by city geography.
- Lot-coverage is NOT the primary intensity metric — CZO uses 'minimum permeable open space' (e.g. 30% in historic urban, 40% in suburban) + 'maximum impervious surface in front/corner side yards' (40% typical). Lot-coverage column in the v1 file was a fabricated mapping.
- Suburban Lake-area districts (S-LRS1/2/3, S-LRD1/2, S-LRM1/2, S-LB1/2, S-LC, S-LP, S-LM) have geographically-specific boundary prose in Table 13-2 — e.g. 'Lakewood South and West Side of Bellaire Drive in Lakewood North'. These boundaries embed in §13.3.A.1 prose.
- Vieux Carré has SUB-DISTRICTS for residential conversions: §9.4 permits multi-family conversion of existing structures with FAR ≥ 3.0, with minimum 400 sf/du (vs. typical 1,500 sf/du floor) when exterior envelope is preserved.
- Voluntary IZ in Historic Core (§9.8, §9.9) and other districts provides 30% density bonus + 30% FAR bonus + up to 30% parking reduction in exchange for 5% units at 60% AMI.
- Orleans Levee District servitude (per La. Const. Art. VI §38 + La. R.S. 38:301 et seq.) overlays riverside and lakeside parcels with state levee-board authority. New construction in the levee servitude is regulated by the levee district authority in addition to local zoning.
- Louisiana home-rule strength: NOLA is under Art. VI §4 pre-1974 charter — strongest home-rule resistance in Louisiana. State preemption claims require clear-statement review per City of New Orleans v. Bd. of Comm'rs of Orleans Levee Dist., 640 So.2d 237 (La. 1994).
- V1 fabrication catch: v1 profile had identical 5000sf/35ft/0.5cov/0.5FAR/2-per-du/25-25-10 setback values across all 54 districts (template-bleed signature). Real CZO values vary widely — VCR-1 is 1500 sf/du, 50' height, NO FAR, build-to-wall, 0 parking; CBD-1 has min 36' height + Figure 17-2 max + 0 setbacks + 0 parking; LI is 5,000sf with 75' step-back height. ALL 54 districts re-derived from primary CZO source at czo.nola.gov on 2026-05-22.
- V1 overlay fabrication catch: v1 had 6 fabricated overlays with pseudo-multipliers (coverage adjustment %, density multiplier, lot size multiplier, height multiplier, setback addition ft). Real CZO has 31+ overlay districts in Article 18 (SC, ENORC, HUC, St. Charles, RDO-1/2, AC-1/2/3/4, RIV, CPC, EC-OD, CT, GC, HU-B1A-OD, LAS, Magazine, Jackson, Annunciation, Canal Height, CCN, SBA, Middle Harrison, Coronet Court MF, Algiers Riverfront, French Market, University Area Parking, Brown's Dairy, University Area Design, Fairgrounds) + the constitutional VCC jurisdiction + HDLC jurisdiction + MIZ (Article 28). Multipliers and arithmetic-style overlay parameters do not appear anywhere in the CZO source.
Formulas
Definitions
- height
- From grade (or, in M-MU and other flood-zone districts, from Base Flood Elevation BFE) to highest point of structure; see CZO Article 26 'Building Height' definition.
- lot_coverage
- Not a primary CZO metric — CZO uses MINIMUM PERMEABLE OPEN SPACE (per Article 21) instead of a maximum lot coverage. Permeable-open-space minimums vary 10%-40% by district.
- far
- Gross floor area / lot area. Where applicable (HMR, MU-1, MU-2, CBD, LS districts). CBD FAR per Figure 17-3 with public-benefit bonuses per §17.5.
- du_ac
- Not the primary CZO density metric — CZO uses MINIMUM LOT AREA PER DWELLING UNIT (sf/du) instead. Implied du/ac = 43,560 / (sf_per_du).
- setback_front
- Front property line to nearest building face. Frequently per build-to line in CBD/B-districts.
- setback_side
- Side property line to nearest building face. Many districts use '10% of lot width or N' whichever greater/lesser' rules.
- setback_rear
- Rear property line to nearest building face. Many districts use '20% of lot depth or N' whichever lesser' rules.
- parking
- Spaces per dwelling unit (typically 1 per du in residential districts). HISTORIC CORE, HU-B1A, and CBD districts EXEMPT per §22.5.A.1.
- open_space_ratio
- Required open space / lot area (varies 0.2-0.3 typical in historic core).
Capacity calculations
- max_footprint_sf
Cannot be derived from CZO alone — depends on permeable-open-space minimums + per-yard impervious caps + setback envelope. Use buildable_area minus required permeable.- max_gfa_sf
lot_area_sf * max_far (where FAR is regulated); for VCR/HUR districts FAR not regulated — capped via height and lot coverage rules.- buildable_width_ft
lot_width_ft - setback_side_int_ft - setback_side_corner_ft (or - setback_side_int_ft * 2 for interior lots)- buildable_depth_ft
lot_depth_ft - setback_front_ft - setback_rear_ft- max_stories_approx
max_height_ft / 11 (typical NOLA story height); CZO explicit story counts override (e.g. CBD-1 '6/10 stories' bounded by Canal/Iberville/N.Peters/Crozat)
Massing explorer
Interactive 3D comparison across every district. Drag to orbit, scroll to zoom, use the slider to walk districts, and toggle applicable overlays in the right-side panel.
| District | Category | Height | FAR | Coverage | Setbacks | Parking | Density | Min lot | Overlays |
|---|
Sources & references
- [1] §7.3
- [2] §7.3
- [3] §7.3
- [4] §7.3
- [5] §7.3
- [6] §7.5.D
- [7] §7.3
- [8] §7.3
- [9] §7.3
- [10] §7.3
- [11] §7.3
- [12] §7.3
- [13] §7.3
- [14] §7.3
- [15] §7.3
- [16] z§7.3
- [17] §7.3
- [18] §7.3
- [19] §7.3
- [20] §7.3
- [21] §7.3
- [22] §7.3
- [23] §7.3
- [24] §7.3
- [25] §7.3
- [26] §7.3
- [27] §7.3
- [28] §7.3
- [29] §7.3
- [30] §7.3
- [31] §7.3
- [32] §7.3
- [33] §7.3
- [34] §7.3
- [35] §7.3
- [36] z§7.3
- [37] §8.3
- [38] §8.3
- [39] §8.3
- [40] §8.3
- [41] §8.3
- [42] z§8.3
- [43] §22.4.A
- [44] §8.3
- [45] §8.3
- [46] §8.3
- [47] z§8.3
- [48] z§8.3
- [49] z§8.3
- [50] §22.4.A
- [51] §9.3.A
- [52] §9.3.A
- [53] §9.3.A
- [54] §9.3.A
- [55] §9.3.A
- [56] §9.3.A
- [57] §22.5.A.1
- [58] §9.3.A
- [59] §9.3.A
- [60] §9.3.A
- [61] §9.3.A
- [62] §9.3.A
- [63] §9.3.A
- [64] §22.5.A.1
- [65] §9.3.A
- [66] §9.3.A
- [67] §9.3.A
- [68] §9.3.A
- [69] §9.3.A
- [70] §9.3.A
- [71] §22.5.A.1
- [72] §9.3.A
- [73] §9.3.A
- [74] §9.3.A
- [75] §9.3.A
- [76] §9.3.A
- [77] §9.3.A
- [78] §22.5.A.1
- [79] §9.3.A
- [80] §9.3.A
- [81] §9.3.A
- [82] §9.3.A
- [83] §9.3.A
- [84] §9.3.A
- [85] §22.5.A.1
- [86] §10.3
- [87] §10.3
- [88] §10.3
- [89] z§10.3
- [90] §10.3.B
- [91] §22.5.A.1
- [92] §10.3
- [93] §10.3
- [94] §10.3
- [95] z§10.3
- [96] §10.3.B
- [97] §22.5.A.1
- [98] §10.3
- [99] §10.3
- [100] §10.3
- [101] z§10.3
- [102] §10.3.B
- [103] §22.5.A.1
- [104] §10.3
- [105] §10.3
- [106] §10.3
- [107] z§10.3
- [108] §10.3.B
- [109] §22.5.A.1
- [110] §10.3
- [111] §10.3
- [112] §10.3
- [113] z§10.3
- [114] §10.3.B
- [115] §22.5.A.1
- [116] §10.3
- [117] §10.3
- [118] §10.3
- [119] z§10.3
- [120] §10.3.B
- [121] §22.5.A.1
- [122] §10.3
- [123] §10.3
- [124] §10.3
- [125] z§10.3
- [126] §10.3.B
- [127] §22.5.A.1
- [128] §10.3
- [129] §10.3
- [130] §10.3
- [131] z§10.3
- [132] §10.3.B
- [133] §22.5.A.5
- [134] §10.3
- [135] §10.3
- [136] §10.3
- [137] z§10.3
- [138] §10.3.B
- [139] §22.5.A.1
- [140] §10.3
- [141] §10.3.B
- [142] §22.5.A.1
- [143] §11.3.A.2
- [144] §11.3.A.1
- [145] §11.3.A.1
- [146] §11.3.A.1
- [147] §11.3.A.1
- [148] z§11.3.A.1
- [149] §22.5.A.2
- [150] §11.3.A.2
- [151] §11.3.A.1
- [152] §11.3.A.1
- [153] §11.3.A.1
- [154] §11.3.A.1
- [155] z§11.3.A.1
- [156] §22.4.A
- [157] §11.3.A.2
- [158] §11.3.A.1
- [159] §11.3.A.1
- [160] §11.3.A.1
- [161] §11.3.A.1
- [162] z§11.3.A.1
- [163] §22.4.A
- [164] §11.3.A.2
- [165] §11.3.A.1
- [166] §11.3.A.1
- [167] §11.3.A.1
- [168] §11.3.A.1
- [169] z§11.3.A.1
- [170] §22.4.A
- [171] §11.3.A.2
- [172] §11.3.A.1
- [173] §11.3.A.1
- [174] §11.3.A.1
- [175] §11.3.A.1
- [176] z§11.3.A.1
- [177] §22.4.A
- [178] §12.3.A.1
- [179] §12.3.A.1
- [180] §12.3.A.1
- [181] §12.3.A.1
- [182] §12.3.A.1
- [183] z§12.3.A.1
- [184] §22.5.A.1
- [185] §12.3.A.1
- [186] §12.3.A.1
- [187] §12.3.A.1
- [188] §12.3.A.1
- [189] §12.3.A.1
- [190] §22.5.A.6
- [191] §12.3.A.1
- [192] §12.3.A.1
- [193] §12.3.A.1
- [194] §12.3.A.1
- [195] §12.3.A.1
- [196] §22.5.A.6
- [197] §13.3.A.1
- [198] §13.3.A.1
- [199] §13.3.A.1
- [200] §13.3.A.1
- [201] §13.3.A.1
- [202] z§13.3.A.1
- [203] §22.4.A
- [204] §13.3.A.1
- [205] §13.3.A.1
- [206] §13.3.A.1
- [207] §13.3.A.1
- [208] §13.3.A.1
- [209] z§13.3.A.1
- [210] §22.4.A
- [211] §13.3.A.1
- [212] §13.3.A.1
- [213] §13.3.A.1
- [214] §13.3.A.1
- [215] §13.3.A.1
- [216] z§13.3.A.1
- [217] §22.4.A
- [218] §13.3.A.1
- [219] §13.3.A.1
- [220] §13.3.A.1
- [221] §13.3.A.1
- [222] §13.3.A.1
- [223] z§13.3.A.1
- [224] §22.4.A
- [225] §13.3.A.1
- [226] §13.3.A.1
- [227] §13.3.A.1
- [228] §13.3.A.1
- [229] §13.3.A.1
- [230] z§13.3.A.1
- [231] §22.4.A
- [232] §13.3.A.1
- [233] §13.3.A.1
- [234] §13.3.A.1
- [235] §13.3.A.1
- [236] §13.3.A.1
- [237] z§13.3.A.1
- [238] §22.4.A
- [239] §13.3.A.1
- [240] §13.3.A.1
- [241] §13.3.A.1
- [242] §13.3.A.1
- [243] §13.3.A.1
- [244] z§13.3.A.1
- [245] §22.4.A
- [246] §13.3.A.1
- [247] §13.3.A.1
- [248] §13.3.A.1
- [249] §13.3.A.1
- [250] §13.3.A.1
- [251] z§13.3.A.1
- [252] §22.4.A
- [253] §13.3.A.1
- [254] §13.3.A.1
- [255] §13.3.A.1
- [256] §13.3.A.1
- [257] §13.3.A.1
- [258] z§13.3.A.1
- [259] §22.4.A
- [260] §13.3.A.1
- [261] §13.3.A.1
- [262] §13.3.A.1
- [263] §13.3.A.1
- [264] §13.3.A.1
- [265] z§13.3.A.1
- [266] §22.4.A
- [267] §13.3.A.1
- [268] §13.3.A.1
- [269] §13.3.A.1
- [270] §13.3.A.1
- [271] §13.3.A.1
- [272] z§13.3.A.1
- [273] §22.4.A
- [274] §14.3.A.2
- [275] §14.3.A.1
- [276] §14.3.A.1
- [277] §14.3.A.1
- [278] §14.3.A.1
- [279] z§14.3.A.1
- [280] §22.4.A
- [281] §14.3.A.2
- [282] §14.3.A.1
- [283] §14.3.A.1
- [284] §14.3.A.1
- [285] §14.3.A.1
- [286] z§14.3.A.1
- [287] §22.4.A
- [288] §14.3.A.2
- [289] §14.3.A.1
- [290] §14.3.A.1
- [291] §14.3.A.1
- [292] §14.3.A.1
- [293] z§14.3.A.1
- [294] §22.4.A
- [295] §14.3.A.2
- [296] §14.3.A.1
- [297] §14.3.A.1
- [298] §14.3.A.1
- [299] §14.3.A.1
- [300] z§14.3.A.1
- [301] §22.4.A
- [302] §14.3.A.2
- [303] §14.3.A.1
- [304] §14.3.A.1
- [305] §14.3.A.1
- [306] §14.3.A.1
- [307] z§14.3.A.1
- [308] §22.4.A
- [309] §14.3.A.1
- [310] §14.3.A.1
- [311] §22.4.A
- [312] §14.3.A.1
- [313] §14.3.A.1
- [314] §22.4.A
- [315] §15.3.A.2
- [316] §15.3.A.1
- [317] §15.3.A.1
- [318] §15.3.A.1
- [319] §15.3.A.1
- [320] §22.4.A
- [321] §15.3.A.2
- [322] §15.3.A.1
- [323] §15.3.A.1
- [324] §15.3.A.1
- [325] §15.3.A.1
- [326] §22.4.A
- [327] §15.3.A.2
- [328] §15.3.A.1
- [329] §15.3.A.1
- [330] §15.3.A.1
- [331] §15.3.A.1
- [332] §22.4.A
- [333] §15.3.A.2
- [334] §15.3.A.1
- [335] §15.3.A.1
- [336] §15.3.A.1
- [337] §15.3.A.1
- [338] §22.4.A
- [339] §15.3.A.2
- [340] §15.3.A.1
- [341] §15.3.A.1
- [342] §15.3.A.1
- [343] §15.3.A.1
- [344] §22.4.A
- [345] §15.3.A.1
- [346] §15.3.A.1
- [347] §15.3.A.1
- [348] §15.3.A.1
- [349] §15.3.A.1
- [350] §22.5.D
- [351] §15.3.A.1
- [352] §15.3.A.1
- [353] §15.3.A.1
- [354] §15.3.A.1
- [355] §15.3.A.1
- [356] §22.4.A
- [357] §15.3.A.1
- [358] §15.3.A.1
- [359] §15.3.A.1
- [360] §15.3.A.1
- [361] §15.3.A.1
- [362] §22.4.A
- [363] §15.3.A.2
- [364] §15.3.A.1
- [365] §15.3.A.1
- [366] §15.3.A.1
- [367] §15.3.A.1
- [368] §22.4.A
- [369] §16.3.A.2
- [370] §16.3.A.1
- [371] §16.3.A.1
- [372] §16.3.A.1
- [373] §16.3.A.1
- [374] z§16.3.A.1
- [375] §22.4.A
- [376] §16.3.A.2
- [377] §16.3.A.1
- [378] §16.3.A.1
- [379] §16.3.A.1
- [380] §16.3.A.1
- [381] z§16.3.A.1
- [382] §22.4.A
- [383] §16.3.A.2
- [384] §16.3.A.1
- [385] §16.3.A.1
- [386] §16.3.A.1
- [387] §16.3.A.1
- [388] z§16.3.A.1
- [389] §22.4.A
- [390] §16.3.A.2
- [391] §16.3.A.1
- [392] §16.3.A.1
- [393] §16.3.A.1
- [394] §16.3.A.1
- [395] z§16.3.A.1
- [396] §22.4.A
- [397] §17.4.A.1
- [398] §17.4.A.1
- [399] §17.4.A.1
- [400] §17.4.A.1
- [401] z§17.4.A.2
- [402] z§17.4.A
- [403] §22.5.A.1
- [404] §17.4.A.1
- [405] §17.4.A.1
- [406] §17.4.A.1
- [407] §17.4.A.1
- [408] z§17.4.A.2
- [409] z§17.4.A
- [410] §22.5.A.1
- [411] §17.4.A.1
- [412] §17.4.A.1
- [413] §17.4.A.1
- [414] §17.4.A.1
- [415] z§17.4.A.2
- [416] z§17.4.A
- [417] §22.5.A.1
- [418] §17.4.A.1
- [419] §17.4.A.1
- [420] §17.4.A.1
- [421] §17.4.A.1
- [422] z§17.4.A.2
- [423] z§17.4.A
- [424] §22.5.A.1
- [425] §17.4.A.1
- [426] §17.4.A.1
- [427] §17.4.A.1
- [428] §17.4.A.1
- [429] z§17.4.A.2
- [430] z§17.4.A
- [431] §22.5.A.1
- [432] §17.4.A.1
- [433] §17.4.A.1
- [434] §17.4.A.1
- [435] §17.4.A.1
- [436] z§17.4.A.2
- [437] z§17.4.A
- [438] §22.5.A.1
- [439] §17.4.A.1
- [440] §17.4.A.1
- [441] §17.4.A.1
- [442] §17.4.A.1
- [443] z§17.4.A.2
- [444] z§17.4.A
- [445] §22.5.A.1
- [446] §14.3.A.2
- [447] §14.3.A.1
- [448] §14.3.A.1
- [449] §14.3.A.1
- [450] §14.3.A.1
- [451] §22.4.A
Research status
Publication gates
| primary url present | passed | source.primary_url = https://czo.nola.gov/ (City of New Orleans City Planning Commission official CZO portal, Microsoft IIS/ASP.NET CMS hosted at city subdomain). Secondary URLs include per-article pages https://czo.nola.gov/article-6/ through /article-22/. All HTTPS. Not an aggregator (zoneomics/steadily/etc absent). |
|---|---|---|
| no aggregator cited | passed | Profile scan confirms no Zoneomics/Steadily/SitePlanGuide/SitePlanCreator/Propwire/Zonara/Unzoned references. All §X.Y.Z citations point to CZO sections at czo.nola.gov, La. R.S. statutes at legis.la.gov, La. Const. articles, federal regulations (44 CFR 60.3, La. Const. Art. XIV §22A, La. R.S. 33:4083), or Louisiana preemption file (zoning/us/louisiana/preemptions.json). |
| confidence tags full form | passed | All 480 kpi_value entries across 71 districts carry §-citation form (c§X.Y.Z confirmed/not_applicable, p§X.Y.Z partial, z§X.Y.Z not_captured). 251 confirmed/not_applicable, 174 partial, 55 not_captured (schema-projection failures with not_captured_reason). Non-canonical KPI dimensions (setback_side_corner_ft, min_lot_depth_ft, open_space_ratio, min_height_ft for CBD-1/2/3/5/6/7, lot-coverage variants) moved to district.formulas for preservation while keeping schema-canonical standards fields. |
| overlays have parameters trigger confidence | passed | All 35 overlays carry: name, code, type (HP/COR/DT/AH/SPEC/INS/ENV/FP), source_jurisdiction=new-orleans-la, ordinance (CZO §18.X or §28 or §2.10/§2.11), trigger (geographic + applicability prose), params (non-empty dict ≥1 key), base_interaction, confidence (c§N or p§N). 31 Article 18 overlay districts + Article 28 MIZ + Vieux Carré Commission (constitutional) + HDLC + FEMA SFHA federal overlay. |
| preempt section city specific | passed | Louisiana is NOT in the active-preemption set [CA,TX,FL,OR,WA,CO,MN,MT,UT,AZ,NJ,CT]; per zoning/us/louisiana/preemptions.json activity_level=low. Nevertheless this profile populates state_preemptions_applicable[] with 5 entries (SLCRMA Coastal Use Permits, 2025 HB 610 NOLA STR, La. R.S. 51:911.22 manufactured housing, 2025 Act 239 roof permit, La. Const. Art. VI §4 home rule) each carrying city-specific qualifying_condition_checked with numeric/geographic inputs (Orleans Parish in coastal zone per La. R.S. 49:214.25; HB 610 city.slug=new-orleans-la), qualifying_condition_source (primary), and effect prose. |
Data quality
- CBD Figure 17-2 / Figure 17-3 per-sub-area heights and FARs not captured at scalar district level (recorded not_captured with rationale)
- Setback contextual rules per §11.3.A.2, §11.3.A.3 not deep-extracted (recorded as partial with deferred-section pointer)
- Per-overlay use schedules (§18.3-§18.33) summarized at metadata level, not deep-extracted
- Garden District HU-RD1 variant (Table 11-2B) — base record uses Table 11-2A; Garden District specific values noted but not split into a separate sub-record
- Article 21 (On-Site Development Standards) detailed off-street accessory rules not extracted into district records (referenced via 'See §21.6 for accessory' etc.)
Known issues
Other cities in this state
Nearest-alphabetical profiles. Click through to compare zoning patterns side-by-side.