Zoning › Texas › Denton County › Lewisville

Lewisville, TX Zoning

Euclidean-zoning. 16 districts · 4 overlays · 3 applicable state preemptions.

Overview

Code type
euclidean
Naming convention
lot-size-encoded

Residential is lot-size-encoded (R-18 = 18,000 sf min). Commercial/industrial use letter codes (OD, NC, GC, CC, GB, LI, WH, HI). No inverse-naming pattern (unlike Grand Prairie). | sub_flags_raw=[suburban-tx, dart-transit-adjacent] ; narrative_ref=narratives/lewisville-tx/a7c3e912-4ba8-44d1-9f1e-lwvl20260418.json

Worth knowing
  • OTMU-2 permits zero front setback for ground-floor retail — rare in DFW suburbs — [c§29.13]
  • Dual overlay stacking: OTMU-2, CH-PD, FPO, and IH-35E CO can overlap — stricter controls govern — [c§29.12; c§29.13; c§29.14; c§29.15]
  • Castle Hills governed by Comprehensive Master Plan in addition to municipal code — [c§29.15]

+ 5 more in Quirks & notes

Districts

com 6res_sf 5ind 3res_mf 2
CodeNameCategory Min lotHeight CoverageFAR Du/acParking Setbacks F/S/R
R-18Estate Residentialres_sf18,000 sf[4]35 ft[5]——2.42[6]30[1] / 10[2] / 25[3]
R-12Large Lot Residentialres_sf12,000 sf[10]35 ft[11]——3.62[12]25[7] / 7.5[8] / 20[9]
R-10Standard Residentialres_sf10,000 sf[16]35 ft[17]——4.42[18]25[13] / 7.5[14] / 20[15]
R-8.5Medium Residentialres_sf8,500 sf[22]35 ft[23]——5.12[24]20[19] / 5[20] / 15[21]
R-7.5Small Residentialres_sf7,500 sf[28]35 ft[29]——5.82[30]20[25] / 5[26] / 15[27]
R-DTDuplex / Townhouseres_mf4,000 sf[34]40 ft[35]——102[36]15[31] / 5[32] / 10[33]
MF-3Multifamilyres_mf—55 ft[40]——24[41]1.25[42]25[37] / 15[38] / 20[39]
ODOffice / Doctorcom—35 ft[44]—0.5[45]——25[43] / — / —
NCNeighborhood Commercialcom—35 ft[47]—0.5[48]——25[46] / — / —
GCGeneral Commercialcom—45 ft[50]—1[51]——25[49] / — / —
CCCommunity Commercialcom—45 ft[53]—1[54]——25[52] / — / —
GB-1General Business 1com—45 ft[56]—1[57]——25[55] / — / —
GB-2General Business 2com—55 ft[59]—1.5[60]——25[58] / — / —
LILight Industrialind—45 ft[61]————— / — / —
WHWarehouseind—55 ft[62]————— / — / —
HIHeavy Industrialind—65 ft[63]————— / — / —

Confidence: confirmed partial under review not found

Overlays

OTMU-2
Old Town Mixed-Use
DT
c§29.13

Downtown Lewisville / Old Town area — bounded by Main Street, Mill Street, Charles Street, and Civic Circle

front_setback_ft0
side_setback_ft5
rear_setback_ft20
rear_setback_ft_with_alley4
max_height_ft75
ground_floor_activationTrue
pedestrian_oriented_designTrue
CH-PD
Castle Hills Planned Development
PD
c§29.15

Castle Hills mixed-use development area; density bonuses within 0.5 mi of DART Silver Line Hebron Station

far_range_low1.5
far_range_high2.5
parking_reduction_near_dartTrue
density_bonus_near_dartTrue
master_plan_governanceTrue
dart_proximity_mi0.5
FPO
Floodplain Overlay
FP
c§29.12

FEMA 100-year floodplain along Cottonwood Creek, Denton Creek, Timber Creek, Prairie Creek, Midway Branch, Indian Creek

freeboard_ft1
substantial_improvement_threshold_pct50
no_rise_in_floodwayTrue
floodplain_permit_requiredTrue
IH35E-CO
IH-35E Arterial Corridor Overlay
SPEC
c§29.14

Parcels fronting or within defined setback of I-35E right-of-way

enhanced_setbackspartial
landscape_bufferpartial
sign_controlspartial
facade_standardspartial

State preemptions

TX SB 15applies
Qualifying condition
Applies statewide to lots <=4,000 sf. No population threshold. Lewisville's R-DT district at 4,000 sf min lot directly interacts. | affected_districts=['R-DT']
Effect
Limits city regulation of setbacks, parking, height, and bulk on qualifying <=4,000 sf lots. R-DT district setback/parking values are preempted_by_state for qualifying lots.
TX HB 2127applies
Qualifying condition
Applies statewide; partially enjoined. Zoning-code enforcement largely unaffected as of 2026-04.
Effect
Minimal direct effect on Ch. 29 dimensional standards; primary impact is on ancillary regulation (labor, environmental, natural-resources).
TX HB 3903applies
Qualifying condition
Applies statewide (subdivision / short-term rental enabling).
Effect
Enables plat/subdivision process changes; no preemption of zoning dimensional standards.
Non-applicable laws (1)
TX SB 840under_review
Qualifying condition
City population ~120,000 (2023 est; 2020 Census 111,822) is BELOW the 150,000 city-population threshold. Denton County ~950,000 exceeds 300,000 county threshold, but city threshold is controlling. | discrepancy_note=state-preemptions/texas.md currently lists Lewisville in qualifying-cities enumeration in error. Flagged for state-preemption-tracker correction.
Effect
N/A — does not apply to Lewisville at current population. Will apply if Lewisville crosses 150,000 (expected within 5–10 years).

Adopted building codes

Home rule; major cities on 2024 IBC

IBC
2024
IRC
2021
NEC
2023
IFC
Local adoption
IECC (Residential)
2015
IECC (Commercial)
2015

Click a code label to open its state-by-state adoption atlas.

Quirks & notes

  • OTMU-2 permits zero front setback for ground-floor retail — rare in DFW suburbs — [c§29.13]
  • Dual overlay stacking: OTMU-2, CH-PD, FPO, and IH-35E CO can overlap — stricter controls govern — [c§29.12; c§29.13; c§29.14; c§29.15]
  • Castle Hills governed by Comprehensive Master Plan in addition to municipal code — [c§29.15]
  • DART Silver Line Hebron Station provides density/parking bonuses within 0.5 mi under Castle Hills overlay — [c§29.15]
  • Six named creeks create extensive floodplain overlay coverage — [c§29.12]
  • Lewisville is flagged in state-preemptions/texas.md SB 840 enumeration in error — actual population is below 150k threshold — [state-preemptions/texas.md (enumeration error)]
  • TX SB 15 directly preempts R-DT dimensional standards on <=4,000 sf lots — [TX SB 15 (2025)]
  • Chapter number ambiguity: historic references cite Ch. 29; current Municode uses Ch. 17 series for zoning — [Municode lewisville code_of_ordinances]

Formulas

Definitions

height
Grade to highest point of structure.
lot_coverage
Building footprint / lot area.
far
Gross floor area / lot area.
du_ac
Dwelling units per gross acre.
setback_front
Front property line to nearest building face.
setback_side
Side property line to nearest building face.
setback_rear
Rear property line to nearest building face.
parking
Spaces per dwelling unit unless noted.

Capacity calculations

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
max_stories_approx
max_height_ft / 10

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.

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drag to orbit · scroll to zoom
Max height
— ft
——
Floor area ratio
—
——
Lot coverage
—%
——
Setbacks (F / S / R)
— ft
——
Parking
— /unit
——
Max density
— du/ac
——
Min lot size
— sf
——
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District Category Height FAR Coverage Setbacks Parking Density Min lot Overlays

Sources & references

Primary source
City of Lewisville Zoning Ordinance (Ch. 29)
municode · current Municode supplement (retrieved 2026-04-18) · retrieved 2026-04-18
Citations
  1. [1] c§29.4
  2. [2] c§29.4
  3. [3] c§29.4
  4. [4] c§29.4
  5. [5] c§29.4
  6. [6] c§29.4
  7. [7] c§29.4
  8. [8] c§29.4
  9. [9] c§29.4
  10. [10] c§29.4
  11. [11] c§29.4
  12. [12] c§29.4
  13. [13] c§29.4
  14. [14] c§29.4
  15. [15] c§29.4
  16. [16] c§29.4
  17. [17] c§29.4
  18. [18] c§29.4
  19. [19] c§29.4
  20. [20] c§29.4
  21. [21] c§29.4
  22. [22] c§29.4
  23. [23] c§29.4
  24. [24] c§29.4
  25. [25] c§29.4
  26. [26] c§29.4
  27. [27] c§29.4
  28. [28] c§29.4
  29. [29] c§29.4
  30. [30] c§29.4
  31. [31] c§29.4
  32. [32] c§29.4
  33. [33] c§29.4
  34. [34] c§29.4
  35. [35] c§29.4
  36. [36] c§29.4
  37. [37] c§29.5
  38. [38] c§29.5
  39. [39] c§29.5
  40. [40] c§29.5
  41. [41] c§29.5
  42. [42] c§29.5
  43. [43] c§29.6
  44. [44] c§29.6
  45. [45] c§29.6
  46. [46] c§29.6
  47. [47] c§29.6
  48. [48] c§29.6
  49. [49] c§29.6
  50. [50] c§29.6
  51. [51] c§29.6
  52. [52] c§29.6
  53. [53] c§29.6
  54. [54] c§29.6
  55. [55] c§29.7
  56. [56] c§29.7
  57. [57] c§29.7
  58. [58] c§29.7
  59. [59] c§29.7
  60. [60] c§29.7
  61. [61] c§29.8
  62. [62] c§29.8
  63. [63] c§29.8

Research status

Publication gates

primary url presentpassed
no aggregator citedpassed
confidence tags full formpassed
overlays have parameters trigger confidencepassed
preempt section city specificpassed

Data quality

78%completeness30 confirmed6 partial6 inferred1 not found
Documented gaps
  • IH-35E corridor dimensional parameters (c§29.14) not fully extracted
  • Castle Hills FAR by sub-district (c§29.15 master plan appendix) not extracted
  • Commercial / industrial lot-coverage and side/rear setbacks — need Ch. 29 dimensional-table re-extraction
  • Flag to state-preemption-tracker: correct erroneous Lewisville entry in texas.md SB 840 qualifying-cities list

Known issues

freshness:volatiledata:gaps-present

Verification

last_verified_at2026-04-18T00:00:00Z
verifier_specialistverification-pass
verifier_version1.0
verification_resultpassed
atomic_claims_checked38
atomic_claims_passed36
atomic_claims_failed0
atomic_claims_partial2
narrative_refnarratives/lewisville-tx/a7c3e912-4ba8-44d1-9f1e-lwvl20260418.json

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