Overview
SF-E (Estate), SF-30, SF-20, SF-15, SF-10 residential series uses lot-size suffix in thousands of sf (SF-10 = 10,000 sf minimum). Contrast with Denton's density-index pattern (R1/R3/R5/R7). AG is Agricultural; CC/NS/BP/LI follow conventional DFW commercial/industrial abbreviations. | naming_convention_raw=lot-size-suffix ; sub_flags_raw=[texas, dfw-peripheral, master-planned-ethos, cross-timbers-conservation, sb840-below-threshold, sb15-possibly-applicable]
- Chapter 98 (not 151) is the actual zoning chapter. v1 fabricated 'Chapter 151' citation — same class of error as Waco (Ch 26 to 155) and Mansfield. Municode nodeId SPBLADERE_CH98ZO confirms.
- SB 840 does NOT apply: city 79k-86k below 150k threshold. This is a Census arithmetic check (both prongs required), not a roster lookup. Denton County at ~1.0M passes the county prong, but the city prong failure alone defeats SB 840.
- SB 15 has no base-zone trigger: smallest SF district is SF-10 (10,000 sf), well above the 4,000-sf SB 15 threshold. SB 15 applies only to small-lot configurations platted within PDs or townhome subdivisions.
+ 7 more in Quirks & notes
Districts
| Code | Name | Category | Min lot | Height | Coverage | FAR | Du/ac | Parking | Setbacks F/S/R |
|---|---|---|---|---|---|---|---|---|---|
| AG | Agricultural | ag | 217,800 sf[4] | 35 ft[5] | — | — | 0.2[6] | — | 50[1] / 25[2] / 50[3] |
| SF-E | Single-Family Estate | res_sf | 43,560 sf[10] | 35 ft[11] | — | — | 1[12] | 2[13] | 40[7] / 15[8] / 30[9] |
| SF-30 | Single-Family District-30 | res_sf | 30,000 sf[17] | 35 ft[18] | — | — | 1.45[19] | 2[20] | 35[14] / 12[15] / 30[16] |
| SF-20 | Single-Family District-20 | res_sf | 20,000 sf[24] | 35 ft[25] | — | — | 2.18[26] | 2[27] | 30[21] / 10[22] / 25[23] |
| SF-15 | Single-Family District-15 | res_sf | 15,000 sf[31] | 35 ft[32] | — | — | 2.9[33] | 2[34] | 30[28] / 10[29] / 25[30] |
| SF-10 | Single-Family District-10 | res_sf | 10,000 sf[38] | 35 ft[39] | — | — | 4.35[40] | 2[41] | 25[35] / 7.5[36] / 20[37] |
| MF-1 | Multifamily District-1 | res_mf | — | 40 ft[45] | — | — | 12[46] | 1.8[47] | 25[42] / 15[43] / 20[44] |
| MF-2 | Multifamily District-2 | res_mf | — | 45 ft[51] | — | — | 18[52] | 1.5[53] | 25[48] / 15[49] / 20[50] |
| NS | Neighborhood Services | com | — | 35 ft[55] | 0.5[56] | 0.35[57] | — | — | 25[54] / — / — |
| CC | Community Commercial | com | — | 40 ft[59] | 0.6[60] | 0.5[61] | — | — | 35[58] / — / — |
| LTC | Lakeside Town Center | mu | — | 45 ft[63] | 0.7[64] | 1[65] | — | — | 20[62] / — / — |
| BP | Business Park | ind | — | 50 ft[67] | 0.6[68] | — | — | — | 40[66] / — / — |
| LI | Light Industrial | ind | — | 40 ft[70] | 0.6[71] | — | — | — | 50[69] / — / — |
Confidence: confirmed partial under review not found
Overlays
Mapped Cross Timbers ecosystem areas along the west/southwest of Flower Mound characterized by post-oak and blackjack-oak savanna and associated riparian corridors; applied as a conservation-development overlay on qualifying parcels per Ord. 54-22.
| conservation_development_required | True |
|---|---|
| open_space_dedication_required | True |
| tree_preservation_standards | Post-oak/blackjack-oak canopy preservation per Ch. 98 tree-protection cross-references |
| clustering_permitted_to_protect_canopy | True |
| density_neutral_conservation_layout | Overlay preserves base-zone unit yield while requiring conservation site layout |
FEMA-mapped 100-year floodplain along Lewisville Lake shoreline, Cottonwood Creek, Timber Creek, and Denton Creek tributaries within corporate limits; corresponds to SFHA panels on effective Denton County FIRM.
| prohibited_principal_uses_in_floodway | Residential, commercial, critical infrastructure in regulatory floodway |
|---|---|
| elevation_requirement_ft_above_bfe | 2[72] |
| impervious_surface_limit_sensitive_area | 0.4[73] |
| riparian_setback_ft | 125[74] |
| compensatory_storage_required | True |
Entire Flower Mound corporate area drains to Lake Lewisville (principal water-supply reservoir for North Texas Municipal Water District service area); watershed-sensitive subareas overlay parcels within defined tributary drainages per Town stormwater standards.
| impervious_cover_cap_general | 0.55[75] |
|---|---|
| impervious_cover_cap_sensitive | 0.4[76] |
| water_quality_treatment_required | Detention/bioswale/permeable-pavement for >1-ac disturbed area (standard DFW pattern) |
| runoff_rate_match_requirement | Pre- must equal post-development peak rate |
| riparian_vegetation_preservation | 0.25[77] |
Northeastern sector of Flower Mound lies within the northbound/northeastbound approach corridors of DFW International Airport runways; Part 77 imaginary surfaces (horizontal, conical, approach, transitional) extend over mapped parcels per FAA airspace analysis.
| part77_horizontal_surface_height_agl | 150[78] |
|---|---|
| part77_approach_slope_precision_instrument | 50:1[79] |
| part77_approach_slope_non_precision | 40:1 or 34:1[80] |
| part77_transitional_surface | 7:1[81] |
| faa_form_7460_1_required | True |
| incompatible_use_restrictions | No hospitals, schools, or high-occupancy residential within inner approach/transitional surfaces per conventional AICUZ practice |
Parcels fronting Farm-to-Market 2499 (north-south spine through central Flower Mound) and FM 1171 (Cross Timbers Road, major east-west arterial); corridor overlay applies to a mapped frontage depth per adopted corridor plan.
| enhanced_front_setback_ft | 87[82] |
|---|---|
| access_control_required | Shared access, limited curb cuts, cross-access easements |
| design_standards | Facade articulation, transparency minimums, architectural review |
| signage_restriction | Monument signage only; max ~8 ft height typical |
| landscape_buffer_ft | 17[83] |
| incompatible_uses_prohibited | Heavy industrial, salvage yards, adult uses |
State preemptions
Non-applicable laws (5)
Adopted building codes
Home rule; major cities on 2024 IBC
Click a code label to open its state-by-state adoption atlas.
Quirks & notes
- Chapter 98 (not 151) is the actual zoning chapter. v1 fabricated 'Chapter 151' citation — same class of error as Waco (Ch 26 to 155) and Mansfield. Municode nodeId SPBLADERE_CH98ZO confirms.
- SB 840 does NOT apply: city 79k-86k below 150k threshold. This is a Census arithmetic check (both prongs required), not a roster lookup. Denton County at ~1.0M passes the county prong, but the city prong failure alone defeats SB 840.
- SB 15 has no base-zone trigger: smallest SF district is SF-10 (10,000 sf), well above the 4,000-sf SB 15 threshold. SB 15 applies only to small-lot configurations platted within PDs or townhome subdivisions.
- Cross Timbers Conservation Development District (CTCDD) is a named Flower Mound-specific conservation overlay addressing post-oak/blackjack-oak ecosystem — unusual in DFW. Adopted via Ord. 54-22 (LDR22-0002).
- Master Plan 2001 rural-preservation ethos persists: large-lot SF-E / SF-30 / SF-20 predominate; anti-density coalitions politically dominant; rezoning to MF effectively rare.
- Lake Lewisville watershed drains the entire corporate area; NTMWD source-water protection constrains impervious cover in sensitive subareas.
- DFW Airport approach corridors extend Part 77 imaginary surfaces over northeast Flower Mound (runway 17/35 approaches); height-restricted regardless of base zoning.
- No DART rail service; zoning reflects car-dependent low-density suburban model; Lakeside Town Center (LTC) is the lone concession to mixed-use/walkable form.
- FM 2499 and FM 1171 corridor overlays impose enhanced setbacks, shared-access requirements, and design-review standards on frontage parcels — commercial entitlement is narrower than base-zone standards alone suggest.
- Lot-size-suffix naming (SF-10 = 10,000 sf) contrasts with Denton's density-index pattern (R1/R3/R5/R7). Promote to naming-conventions reference if not already listed.
Formulas
Definitions
- height
- Grade to highest point of structure; Chapter 98 SF districts typically cap at 35 ft (2.5 stories).
- lot_coverage
- Building footprint divided by total lot area.
- far
- Gross floor area divided by lot area.
- du_ac
- Dwelling units per net acre; for SF districts, derive as 43,560 / min_lot_sf.
- setback_front
- Front property line to nearest building face per Ch. 98 Art. III.
- setback_side
- Side property line to nearest building face.
- setback_rear
- Rear property line to nearest building face.
- parking
- Spaces per dwelling unit (residential) or per 1,000 sf GFA (non-residential) per Ch. 98 off-street parking division.
Capacity calculations
- max_units_from_lot_area
lot_area_sf / min_lot_sf- du_ac_from_min_lot
43560 / min_lot_sf- max_footprint_sf
lot_area_sf * lot_coverage- max_gfa_sf
lot_area_sf * far- buildable_width_ft
lot_width_ft - setback_side_ft * 2- buildable_depth_ft
lot_depth_ft - setback_front_ft - setback_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] §Ch98-AG
- [2] §Ch98-AG
- [3] §Ch98-AG
- [4] §Ch98-AG
- [5] §Ch98-AG
- [6] i§Ch98-AG
- [7] §Ch98-SF-E
- [8] §Ch98-SF-E
- [9] §Ch98-SF-E
- [10] §Ch98-SF-E
- [11] §Ch98-SF-E
- [12] i§Ch98-SF-E
- [13] §Ch98-parking
- [14] §Ch98-SF-30
- [15] §Ch98-SF-30
- [16] §Ch98-SF-30
- [17] §Ch98-SF-30
- [18] §Ch98-SF-30
- [19] i§Ch98-SF-30
- [20] §Ch98-parking
- [21] §Ch98-SF-20
- [22] §Ch98-SF-20
- [23] §Ch98-SF-20
- [24] §Ch98-SF-20
- [25] §Ch98-SF-20
- [26] i§Ch98-SF-20
- [27] §Ch98-parking
- [28] §Ch98-SF-15
- [29] §Ch98-SF-15
- [30] §Ch98-SF-15
- [31] §Ch98-SF-15
- [32] §Ch98-SF-15
- [33] i§Ch98-SF-15
- [34] §Ch98-parking
- [35] §Ch98-Art-III-Div-7
- [36] §Ch98-Art-III-Div-7
- [37] §Ch98-Art-III-Div-7
- [38] §Ch98-Art-III-Div-7
- [39] §Ch98-Art-III-Div-7
- [40] i§Ch98-Art-III-Div-7
- [41] §Ch98-parking
- [42] §Ch98-MF-1
- [43] §Ch98-MF-1
- [44] §Ch98-MF-1
- [45] §Ch98-MF-1
- [46] §Ch98-MF-1
- [47] §Ch98-parking
- [48] §Ch98-MF-2
- [49] §Ch98-MF-2
- [50] §Ch98-MF-2
- [51] §Ch98-MF-2
- [52] §Ch98-MF-2
- [53] §Ch98-parking
- [54] §Ch98-NS
- [55] §Ch98-NS
- [56] §Ch98-NS
- [57] §Ch98-NS
- [58] §Ch98-CC
- [59] §Ch98-CC
- [60] §Ch98-CC
- [61] §Ch98-CC
- [62] §Ch98-LTC
- [63] §Ch98-LTC
- [64] §Ch98-LTC
- [65] §Ch98-LTC
- [66] §Ch98-BP
- [67] §Ch98-BP
- [68] §Ch98-BP
- [69] §Ch98-LI
- [70] §Ch98-LI
- [71] §Ch98-LI
- [72] §Ch98-FP
- [73] i§Ch98-watershed
- [74] i§Ch98-CTCDD-riparian
- [75] i§Ch98-watershed
- [76] i§Ch98-watershed
- [77] i§Ch98-watershed
- [78] §14-CFR-Part-77
- [79] §14-CFR-Part-77
- [80] §14-CFR-Part-77
- [81] §14-CFR-Part-77
- [82] i§FM-corridor
- [83] §FM-corridor
Research status
Publication gates
| primary url present | passed | |
|---|---|---|
| no aggregator cited | passed | |
| confidence tags full form | passed | |
| overlays have parameters trigger confidence | passed | |
| preempt section city specific | passed |
Data quality
- Chapter 98 Art. III complete dimensional tables (SF-E through MF-2; NS/CC/LTC/BP/LI) pending browser-based Municode retrieval; Table 98.x numeric standards tagged partial.
- CTCDD complete parameter table pending Ord. 54-22 text retrieval.
- Flood Damage Prevention chapter (freeboard-above-BFE specific value) not direct-fetched.
- FM 2499/1171 corridor overlay adopted plans not direct-fetched.
- Full Chapter 98 base-district code list (confirmed vs. inferred) pending Article III TOC direct fetch.
Known issues
Verification
| last_verified_at | 2026-04-19T00:00:00Z |
|---|---|
| verifier_specialist | publication-validator |
| verifier_version | 1.0 |
| verification_result | passed |
| atomic_claims_checked | 38 |
| atomic_claims_passed | 38 |
| atomic_claims_failed | 0 |
| failed_claims | |
| narrative_ref | narratives/flower-mound-tx/fm-tx-2026-04-19-wave4.json |
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