Overview
R-zone numeric suffix = minimum lot size in square feet (R-20 = 20,000 sf; R-12 = 12,000 sf; R-8 = 8,000 sf; R-5 = 5,000 sf). R-2-5 is a special two-family zone at 5,000/2,500 sf per unit. Multifamily zones use alpha codes (RA, RB). Commercial/mixed-use zones use alpha codes (CL, CG, CD, OC, OCM, OCH, CRMU-L, CRMU-M, CRMU-H, CRMU-X, CDD, RMF, I). No numeric density encoding.
- V1_LEGACY_BLEED_CONFIRMED: The prior v1 record used entirely fabricated district codes (R-1, R-2, R-3, R-4, MF-1, MF-2, MF-3) that do not exist in Alexandria's Zoning Ordinance. Alexandria uses R-20/R-12/R-8/R-5/R-2-5/RA/RB for residential. All dimensional values in the prior record were fabricated template fills.
- INDEPENDENT_CITY: Alexandria is a Virginia independent city — it is NOT part of any county. For zoning purposes, no county overlay applies. The independent-city status means Alexandria acts as both city and county in Virginia's legal framework.
- CONTEXTUAL_SETBACKS: Alexandria uses a contextual front-yard system — the required front yard is the range of existing front yards on the block face, not a fixed number. This is a distinctive local approach not captured in a single numeric value.
+ 5 more in Quirks & notes
Districts
| Code | Name | Category | Min lot | Height | Coverage | FAR | Du/ac | Parking | Setbacks F/S/R |
|---|---|---|---|---|---|---|---|---|---|
| R-20 | R-20 Residential / Single-Family Zone | res_sf | 20,000 sf[3] | 30 ft[4] | —[5] | 0.25[6] | —[7] | 2[8] | — / 12[1] / 12[2] |
| R-12 | R-12 Residential / Single-Family Zone | res_sf | 12,000 sf[11] | 30 ft[12] | —[13] | 0.3[14] | —[15] | 2[16] | — / 10[9] / 10[10] |
| R-8 | R-8 Residential / Single-Family Zone | res_sf | 8,000 sf[19] | 30 ft[20] | —[21] | 0.35[22] | —[23] | 2[24] | — / 8[17] / 8[18] |
| R-5 | R-5 Residential / Single-Family Zone | res_sf | 5,000 sf[27] | 30 ft[28] | —[29] | 0.45[30] | —[31] | 2[32] | — / 7[25] / 7[26] |
| R-2-5 | R-2-5 Residential / Single- and Two-Family Zone | res_sf | 5,000 sf[35] | 30 ft[36] | —[37] | 0.45[38] | —[39] | 2[40] | — / 7[33] / 7[34] |
| RA | RA / Multi-Unit Family Zone | res_mf | 1,600 sf[42] | [{'variant': 'single_and_two_unit_family', 'value': 30, 'citation': '§3-606(D)'}, {'variant': 'all_other_structures', 'value': 45, 'citation': '§3-606(D)'}] ft[43] | —[44] | —[45] | [{'variant': 'multifamily', 'value': 27, 'citation': '§3-605(A)'}, {'variant': 'sf_two_unit_townhouse', 'value': 22, 'citation': '§3-605(A)'}][46] | 2[47] | — / [{'variant': 'sf_and_two_unit_family', 'value': 7, 'citation': '§3-606(A)(2)(a)', 'note': '1:3 ratio with 7 ft minimum'}, {'variant': 'multifamily', 'value': 16, 'citation': '§3-606(A)(2)(c)', 'note': '1:2 ratio with 16 ft minimum'}][41] / — |
| RB | RB / Townhouse Zone | res_th | — | [{'variant': 'sf_and_two_unit_outside_historic', 'value': 30, 'citation': '§3-706(D)(1)(a)'}, {'variant': 'sf_and_two_unit_in_ohad_parker_gray', 'value': None, 'citation': '§3-706(D)', 'note': 'Historic district height governed by Article X BAR review; no absolute numeric ceiling in extracted text'}] ft[49] | —[50] | 0.75[51] | [{'variant': 'outside_historic_districts', 'value': 22, 'citation': '§3-705(A)'}, {'variant': 'within_ohad_or_parker_gray', 'value': 30, 'citation': '§3-705(A)'}][52] | 2[53] | — / [{'variant': 'sf_and_two_unit_outside_historic', 'value': 8, 'citation': '§3-706(A)(3)(a)', 'note': '1:3 ratio with 8 ft minimum'}, {'variant': 'multifamily', 'value': 16, 'citation': '§3-706(A)(3)(c)', 'note': '1:2 ratio with 16 ft minimum'}][48] / — |
| CL | CL / Commercial Low Zone | com | 5,000 sf[56] | — | —[57] | 0.75[58] | 27[59] | — | —[54] / — / 8[55] |
Confidence: confirmed partial under review not found
Overlays
Properties located within the designated boundary of the Old and Historic Alexandria District — generally from Hunting Creek north to Bashford Lane, Potomac River east to near King Street Metro, including George Washington Memorial Parkway buffer
40-block area within Alexandria named after Parker-Gray School (opened 1920); primarily northwest of downtown
Properties within FEMA-mapped Special Flood Hazard Areas (A, AE, V, VE zones) per FIRM panels effective January 11, 2024. Approximately 20% of Alexandria is within mapped floodplain (Four Mile Run, Holmes Run, Cameron Run, Strawberry Run, Potomac River waterfront).
Parcels within FAA Part 77 imaginary surfaces for Ronald Reagan Washington National Airport (DCA), approximately 2–4 miles northeast of the city center; Metrorail Blue/Yellow line corridor runs adjacent to DCA
Large redevelopment sites designated by City Council action: Potomac Yard, Eisenhower East, Landmark Mall area, and others. Each CDD is a distinct overlay with site-specific development standards.
State preemptions
Non-applicable laws (4)
Adopted building codes
Statewide — VA Uniform SBC
Click a code label to open its state-by-state adoption atlas.
Amendment history
| Date | Kind | Citation |
|---|---|---|
| 2026-05-26 | retrieved at | Municode link https://library.municode.com/va/alexandria/codes/zoning confirmed active (Cloudflare-gated; primary research via alexandriava.gov PDF extracts) |
| 2024-11-01 | last amended | Ord. No. 5553 (adopted 2024-11-12) |
| 2023-12-01 | amendment effective | Zoning for Housing / Housing for All Phase I amendments — R-zone text revisions (Oct–Dec 2023) |
Quirks & notes
- V1_LEGACY_BLEED_CONFIRMED: The prior v1 record used entirely fabricated district codes (R-1, R-2, R-3, R-4, MF-1, MF-2, MF-3) that do not exist in Alexandria's Zoning Ordinance. Alexandria uses R-20/R-12/R-8/R-5/R-2-5/RA/RB for residential. All dimensional values in the prior record were fabricated template fills.
- INDEPENDENT_CITY: Alexandria is a Virginia independent city — it is NOT part of any county. For zoning purposes, no county overlay applies. The independent-city status means Alexandria acts as both city and county in Virginia's legal framework.
- CONTEXTUAL_SETBACKS: Alexandria uses a contextual front-yard system — the required front yard is the range of existing front yards on the block face, not a fixed number. This is a distinctive local approach not captured in a single numeric value.
- SETBACK_RATIO_SYSTEM: Side and rear yard setbacks are expressed as ratios (1:2, 1:3) of building height with absolute minimums — e.g., 1:3 with 7 ft minimum means the setback = max(building_height/3, 7ft). Standard numeric setback schema cannot fully express this; minimums are captured.
- MUNICODE_CLOUDFLARE_BLOCK: https://library.municode.com/va/alexandria/codes/zoning returns HTTP 403 (Cloudflare Turnstile) to scripted access. Primary data sourced from city-hosted PDF supplements at alexandriava.gov/sites/default/files/2023-10/ and the Z4H feasibility study. Height limits for commercial zones (CL §4-107, I §4-1205) were not captured — these sections appear only in the Municode-hosted full text, not the amendment PDFs.
- ZONING_FOR_HOUSING_2023: In November–December 2023, Alexandria's City Council approved 'Zoning for Housing / Housing for All' Phase I amendments that expanded permitted uses in SF zones (two-unit and up to four-unit dwellings by right in R-20/R-12/R-8/R-5/R-2-5), revised dimensional standards, and reduced minimum lot sizes in some contexts. The PDFs retrieved reflect the post-amendment code.
- DCA_AIRPORT_NO_LOCAL_OVERLAY: Reagan National Airport (DCA) is 2-4 miles northeast of Alexandria's city center. Despite proximity, no locally-adopted airport overlay district under Va. Code §15.2-2295 was confirmed in available research. FAA Part 77 federal height restrictions apply by operation of federal law regardless.
- NFIP_CRS_CLASS_6: Alexandria is one of only two Virginia localities achieving CRS Class 6 (highest in state), yielding 20% flood insurance premium discounts. Community ID 515519. New FIRM effective 2024-01-11.
Formulas
Definitions
- height
- Vertical distance measured from grade to the highest point of the structure (Va. USBC definition applied locally). Threshold height is measured from grade to the top of the finished first-floor level.
- lot_coverage
- Not the primary regulatory metric in Alexandria's Zoning Ordinance — the code regulates bulk primarily through FAR, height, setbacks, and open/usable space requirements.
- far
- Gross floor area of all buildings on the lot divided by the lot area. For residential dwellings in R-20, R-12, R-8, R-5, R-2-5, RB and RA zones (outside historic districts): sum of all areas under roof measured from exterior walls; ceiling heights ≥15 ft counted twice; ≥25 ft counted three times (§2-145).
- du_ac
- Dwelling units per gross acre. Used as an alternative density cap alongside FAR in multifamily zones.
- setback_front
- For SF/2-unit dwellings outside historic districts: contextual (range of front yards on the block face), minimum 20 ft when block-face minimum exceeds 20 ft (§3-106 et seq.).
- setback_side
- Expressed as a height-based setback ratio (1:2 or 1:3) with an absolute minimum in feet.
- setback_rear
- Expressed as a 1:1 height-to-setback ratio with an absolute minimum in feet.
- parking
- Off-street parking spaces per dwelling unit (§8-200).
Capacity calculations
- max_gfa_sf
lot_area_sf * far- max_stories_approx
max_height_ft / 10- side_setback_ft
MAX(building_height_ft / ratio_denominator, min_side_ft)- rear_setback_ft
MAX(building_height_ft / 1, min_rear_ft)
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] §3-106
- [2] §3-106
- [3] §3-100
- [4] §3-106
- [5] n
- [6] §3-106
- [7] n
- [8] §8-200
- [9] §3-206
- [10] §3-206
- [11] §3-201
- [12] §3-206
- [13] n
- [14] §3-206
- [15] n
- [16] §8-200
- [17] §3-306
- [18] §3-306
- [19] §3-301
- [20] §3-306
- [21] n
- [22] §3-306
- [23] n
- [24] §8-200
- [25] §3-406
- [26] §3-406
- [27] §3-401
- [28] §3-406
- [29] n
- [30] §3-406
- [31] n
- [32] §8-200
- [33] §3-506
- [34] §3-506
- [35] §3-505(A)
- [36] §3-506
- [37] n
- [38] §3-506
- [39] n
- [40] §8-200
- [41] §3-606(A)(2)
- [42] §3-605(B)
- [43] §3-606(D)
- [44] n
- [45] n
- [46] §3-605(A)
- [47] §8-200
- [48] §3-706(A)(3)
- [49] §3-706(D)
- [50] n
- [51] §3-706(C)
- [52] §3-705(A)
- [53] §8-200
- [54] n
- [55] §4-106(A)(2)(c)
- [56] §4-105(B)(1)
- [57] n
- [58] §4-106(B)(2)
- [59] §4-106(B)(2)
Research status
Publication gates
| primary url present | passed | source.primary_url = https://library.municode.com/va/alexandria/codes/zoning — HTTPS, not an aggregator domain |
|---|---|---|
| no aggregator cited | passed | scan clean — no zoneomics, steadily, siteplanguide, sitedesignguide, siteplancreator, propwire, zonara, unzoned references in record |
| confidence tags full form | passed | 28/28 confirmed fields carry §-citations (e.g. c§3-100, c§3-605(A), c§3-706(C), c§4-106(B)(2), c§8-200); partial fields carry explicit status=partial + reason or retrieval_failure_reason |
| overlays have parameters trigger confidence | passed | All 8 overlays have non-empty parameters (or explicit not_found/not_applicable), geographic_trigger, status, and citation. NOT_FOUND overlays carry search_performed. |
| preempt section city specific | passed | 11 state preemption laws evaluated with city-specific qualifying_condition_checked. Virginia is not in the Gate 5 active-preemption state list (CA/TX/FL/OR/WA/CO/MN/MT/UT/AZ/NJ/CT) — but VA has active Dillon's Rule and CBPA preemptions; 11 laws evaluated, 7 applies=true with numeric/geographic inputs, 4 applies=false with explicit reasoning. |
Data quality
- CL zone maximum height (§4-107) — Municode blocked; amendment PDF does not include unchanged sections
- I zone maximum height (§4-1205) — same retrieval blocker
- RA zone explicit rear yard minimum — not stated in extracted amendment PDF
- RB zone minimum lot size — not stated as single absolute number; derived from density cap
- Commercial zones CD, CG, OC, OCM, OCH, CRMU-L, CRMU-M, CRMU-X not extracted — only CL and CRMU-H PDFs available; I zone amended PDF partially retrieved
- Front setback numeric minimum — contextual system not reducible to a single number without parcel context
Other cities in this state
Nearest-alphabetical profiles. Click through to compare zoning patterns side-by-side.