Zoning › Texas › Dallas County › Richardson

Richardson, TX Zoning

Euclidean-zoning. 26 districts · 7 overlays.

Overview

Code type
euclidean
Naming convention
lot-area-encoded-hybrid

Richardson uses a distinctive hybrid naming convention: residential districts encode the minimum lot area (or unit floor area for apartments/duplexes) in the number portion, followed by an -F (front-entry) or -M (modern masonry) suffix. Examples: R-1500-M = SF Residential, 15,000 sf min lot, Masonry; R-850-F = SF Residential, 8,500 sf min lot, Front-entry; D-1400-M = Duplex, 1,400 sf min floor area per unit, Masonry; A-1000-M = Apartment, 1,000 sf min floor area per unit, Masonry. Commercial uses LR-M(1)/LR-M(2) Local Retail tiers, C-M Commercial, O-M Office, TO-M Technical Office. Industrial uses I-M(1)/I-M(2)/IP-M(1) tiers plus I-FP floodplain variants. RA- prefix = Residential Attached (townhome). RP- prefix = Residential Patio home. MU = Mixed-Use. PD = Planned Development. FP = Floodplain. This convention is NOT inverse-density encoded (R-1500-M is larger-lot / lower-density than R-850-F).

Worth knowing
  • Zoning is codified as APPENDIX A to the Richardson Code of Ordinances, NOT as a numbered chapter or title. v1's 'Title 25' was fabrication matching the Waco/Mansfield/Flower Mound/McAllen Category-A error class (wrong-chapter-number).
  • CZO 1956 is a legacy 1956 ordinance with continuous amendment history; no comprehensive rewrite. District structure reflects 1950s-70s DFW suburban patterns with modern PD overlays for CityLine and transit-adjacent infill.
  • Distinctive lot-area-encoded hybrid naming convention. Residential SF districts encode the minimum lot area in the district name (R-1500-M = 15,000 sf min lot). -F suffix permits front-facing garages; -M suffix requires side/rear entry with masonry architectural standards. Duplex (D-1400-M) and Apartment (A-1000-M) districts encode minimum floor area PER UNIT rather than lot size. Not found in v2 _references/naming-conventions.md — recommend promoting as a distinct DFW naming pattern (unique among studied cities).

+ 8 more in Quirks & notes

Districts

res_sf 10res_mf 4com 3ind 3off 2special 2res_th 1mu 1
CodeNameCategory Min lotHeight CoverageFAR Du/acParking Setbacks F/S/R
R-2000-MSF Residential 20,000 sf Masonryres_sf20,000 sf[4]35 ft[5]0.4[6]0.5[7]2.18[8]2[9]30[1] / 10[2] / 20[3]
R-1800-MSF Residential 18,000 sf Masonryres_sf18,000 sf[13]35 ft[14]0.4[15]0.5[16]2.42[17]2[18]30[10] / 10[11] / 20[12]
R-1500-MSF Residential 15,000 sf Masonryres_sf15,000 sf[22]35 ft[23]0.4[24]0.5[25]2.9[26]2[27]30[19] / 10[20] / 15[21]
R-1250-MSF Residential 12,500 sf Masonryres_sf12,500 sf[31]35 ft[32]0.4[33]0.5[34]3.48[35]2[36]30[28] / 8[29] / 15[30]
R-1100-MSF Residential 11,000 sf Masonryres_sf11,000 sf[40]35 ft[41]0.4[42]0.5[43]3.96[44]2[45]25[37] / 7.5[38] / 15[39]
R-1000-MSF Residential 10,000 sf Masonryres_sf10,000 sf[49]35 ft[50]0.4[51]0.5[52]4.36[53]2[54]25[46] / 7.5[47] / 10[48]
R-950-MSF Residential 9,500 sf Masonryres_sf9,500 sf[58]35 ft[59]0.4[60]0.5[61]4.59[62]2[63]25[55] / 7[56] / 10[57]
R-850-FSF Residential 8,500 sf Front-Entryres_sf8,500 sf[67]35 ft[68]0.45[69]0.5[70]5.12[71]2[72]25[64] / 6[65] / 10[66]
R-850-MSF Residential 8,500 sf Masonryres_sf8,500 sf[76]35 ft[77]0.45[78]0.5[79]5.12[80]2[81]25[73] / 6[74] / 10[75]
RA-1100-MResidential Attached (Townhome) 11,000 sf Masonryres_th2,500 sf[85]40 ft[86]0.6[87]0.8[88]12[89]2[90]20[82] / 0[83] / 15[84]
RP-1500-MResidential Patio-Home 15,000 sf Masonryres_sf5,000 sf[94]30 ft[95]0.5[96]0.5[97]8[98]2[99]20[91] / 0[92] / 15[93]
D-1400-MDuplex 1,400 sf Floor Area Masonryres_mf7,500 sf[103]35 ft[104]0.5[105]0.5[106]11.6[107]2[108]25[100] / 6[101] / 10[102]
A-1000-MApartment 1,000 sf Floor Area Masonryres_mf20,000 sf[112]45 ft[113]0.5[114]1[115]18[116]1.5[117]25[109] / 15[110] / 20[111]
A-950-MApartment 950 sf Floor Area Masonryres_mf20,000 sf[121]55 ft[122]0.5[123]1.5[124]25[125]1.5[126]25[118] / 15[119] / 20[120]
A-850-FApartment 850 sf Floor Area Front-Entryres_mf20,000 sf[130]65 ft[131]0.5[132]2[133]30[134]1.5[135]25[127] / 15[128] / 20[129]
LR-M(1)Local Retail District Tier 1com10,000 sf[139]35 ft[140]0.5[141]0.5[142]—4[143]25[136] / 10[137] / 15[138]
LR-M(2)Local Retail District Tier 2com10,000 sf[147]45 ft[148]0.6[149]0.75[150]—4[151]25[144] / 10[145] / 15[146]
C-MCommercial Districtcom10,000 sf[155]55 ft[156]0.6[157]1[158]—4[159]25[152] / 10[153] / 15[154]
O-MOffice Districtoff15,000 sf[163]60 ft[164]0.5[165]1.5[166]—3.5[167]25[160] / 15[161] / 15[162]
TO-MTechnical Office Districtoff20,000 sf[171]75 ft[172]0.5[173]2[174]—3.5[175]30[168] / 20[169] / 20[170]
I-M(1)Industrial District Tier 1ind20,000 sf[179]45 ft[180]0.6[181]1[182]—1[183]30[176] / 15[177] / 20[178]
I-M(2)Industrial District Tier 2ind20,000 sf[187]60 ft[188]0.65[189]1.5[190]—1[191]30[184] / 20[185] / 25[186]
IP-M(1)Industrial Park Tier 1ind40,000 sf[195]60 ft[196]0.6[197]1.5[198]—1[199]40[192] / 25[193] / 30[194]
MUMixed-Usemu20,000 sf[203]85 ft[204]0.7[205]2.5[206]40[207]1.5[208]10[200] / 0[201] / 15[202]
PDPlanned Developmentspecial——————— / — / —
FPFloodplainspecial——————— / — / —

Confidence: confirmed partial under review not found

Overlays

CITYLINE-PD
CityLine TOD / Bush Turnpike Station Area
TOD
CZO 1956 Planned Development approvals for CityLine (186-acre mixed-use development at DART Red Line Bush Turnpike Station) · c§CityLine-PD-built-and-operational
TELECOM-COR
Telecom Corridor / US 75 Central Expressway Overlay
COR
CZO 1956 Corridor and Sign standards along US 75 frontage; economic development designation (historical) · p§Ch-Telecom-Corridor; Richardson Economic Development Partnership historical designation
HDO
Historic Downtown Preservation Overlay
HP
CZO 1956 historic-preservation article; Historic Downtown Main Street plan · p§Ch-Historic-Main-Street
FP
FEMA Floodplain Overlay
FP
CZO 1956 Article with FP districts (I-FP(1), I-FP(2) industrial floodplain variants) + Flood Damage Prevention chapter + FEMA NFIP alignment · p§CZO-1956-FP + Ch-FDP + c§FEMA-NFIP
UTD-ADJ
UT Dallas / Campbell Road Campus Adjacency Overlay
spec
CZO 1956 special-use + site-plan-review provisions for university-adjacent parcels · p§Ch-UTD-adjacency
AIR-ADS
Addison (ADS) Airport Influence Area — Part 77
AP
CZO 1956 airport-hazard provisions; 14 CFR Part 77 imaginary surfaces · p§Ch-airport-hazard + c§14-CFR-Part-77
PGBT-COR
Freeway Corridor — Bush Turnpike (PGBT)
COR
CZO 1956 corridor standards for Bush Turnpike (President George Bush Turnpike / SH 190) frontage · p§Ch-PGBT-corridor; c§NTTA-access

State preemptions

Non-applicable laws (5)
does not apply
Qualifying condition
SB 840 requires BOTH prongs simultaneously: city population >=150,000 AND county population >=300,000 (Census arithmetic, not roster lookup). Richardson arithmetic: (a) CITY prong — 2020 US Census Decennial PL-94-171 = 119,469 (FIPS 4861796); 2024 Census PEP vintage estimate ~120,900. City FAILS the 150,000 threshold by ~30,500 (a 20% shortfall) on both 2020 and 2024 values. (b) COUNTY prong — Dallas County (FIPS 48113) 2020 Decennial = 2,613,539, exceeds 300,000 by nearly 9x; Collin County (FIPS 48085) 2020 Decennial = 1,064,465 / 2024 PEP ~1,195,359, exceeds 300,000 by over 3.5x. County prong passes decisively on either county alone, and Richardson straddles both. However because both prongs are required and the city prong fails by a substantial margin, SB 840 does NOT apply to Richardson. This overrides the state-preemptions/texas.md qualifying-city roster which lists Richardson — the primary Census arithmetic is dispositive per the Waco/McAllen FM-9 border-city precedent.
does not apply
Qualifying condition
SB 15 limits municipal regulation of setbacks, parking, height, and bulk on qualifying lots at or below 4,000 sf. Richardson's smallest enumerated SF base district is R-850-F / R-850-M (implying ~8,500 sf minimum — lot area encoded in district name; 850 is read as 8,500 sf per Richardson's CZO 1956 convention where the trailing zero is omitted in the district name but present in the lot area). Duplex districts D-1400-M, D-2400-M, D-3000-M encode per-unit floor area (1,400 / 2,400 / 3,000 sf) not lot size — duplex lot size minima sit well above 4,000 sf. Apartment districts A-850-F / A-950-M / A-1000-M similarly encode per-unit floor area. NO Richardson base district carries a minimum lot size at or below the 4,000 sf SB 15 threshold. SB 15 therefore applies ONLY to parcels created via (a) small-lot Planned Development (PD) configurations, (b) townhome/patio-home (RA-/RP-) subdivisions platted with <=4,000 sf individual lots, or (c) MU / CityLine TOD PDs approved with small-lot internal platting. PDs are the typical CityLine pathway. No zone-wide SB 15 trigger in the base euclidean schedule.
does not apply
Qualifying condition
HB 2127 (the 'Death Star' bill) preempts municipal ordinances conflicting with state statutes in 8 enumerated codes: Agriculture, Business & Commerce, Finance, Insurance, Labor, Natural Resources, Occupations, Property. Under current Texas court interpretation (City of Houston v. Paxton litigation), zoning authority under LGC Ch. 211/212 is NOT within HB 2127's covered-field list. Richardson's Appendix A CZO 1956 zoning is therefore NOT subject to HB 2127 preemption. Adjacent ordinances (short-term rentals, business-license requirements, tree-preservation standards embedded in site plan review) may have HB 2127 exposure but are outside the zoning scope of this record.
does not apply
Qualifying condition
HB 3699 narrowly exempts certain subdivisions of 5+ acre lots from municipal platting requirements. Richardson is a built-out inner-ring DFW suburb (~119k population in ~28 sq mi) with very limited greenfield and essentially no 5-acre+ SF parcels in active subdivision activity. Largest-lot residential district R-2000-M implies ~20,000 sf (~0.46 acre) minimum — an order of magnitude below the HB 3699 threshold. Even if a 5+ acre parcel existed and was subdivided, HB 3699 limits only platting requirements, not dimensional zoning standards. Operationally not a zoning preemption for Richardson.
does not apply
Qualifying condition
Texas has no state-level ADU by-right preemption statute. Local ADU rules govern — Richardson's CZO 1956 accessory-use provisions and any subsequently-adopted ADU amendments control. Contrast with California GC §66411.7/66411.8, Oregon HB 2001, Washington HB 1337 where state law mandates ministerial ADU approval.

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

  • Zoning is codified as APPENDIX A to the Richardson Code of Ordinances, NOT as a numbered chapter or title. v1's 'Title 25' was fabrication matching the Waco/Mansfield/Flower Mound/McAllen Category-A error class (wrong-chapter-number).
  • CZO 1956 is a legacy 1956 ordinance with continuous amendment history; no comprehensive rewrite. District structure reflects 1950s-70s DFW suburban patterns with modern PD overlays for CityLine and transit-adjacent infill.
  • Distinctive lot-area-encoded hybrid naming convention. Residential SF districts encode the minimum lot area in the district name (R-1500-M = 15,000 sf min lot). -F suffix permits front-facing garages; -M suffix requires side/rear entry with masonry architectural standards. Duplex (D-1400-M) and Apartment (A-1000-M) districts encode minimum floor area PER UNIT rather than lot size. Not found in v2 _references/naming-conventions.md — recommend promoting as a distinct DFW naming pattern (unique among studied cities).
  • CityLine as DFW's premier TOD (186-acre, Bush Turnpike DART Red Line station, 8-15+ stories, 50+ du/ac, form-based). State Farm regional hub (4 buildings), Raytheon HQ, CityLine Market, CityLine Apartments. Operationalized via PD ordinances rather than a mapped TOD overlay — a CityLine-specific quirk.
  • SB 840 DOES NOT APPLY despite state-file roster inclusion. Richardson 2020 Decennial pop 119,469 / 2024 PEP ~120,900 falls ~20% below the 150k city-population floor. Both Dallas County (2.6M) and Collin County (1.06M) satisfy the 300k county prong independently, but city prong is dispositive. Applies Waco/McAllen FM-9 border-city precedent. State file flagged for correction.
  • Richardson straddles Dallas County (majority) and Collin County (northeastern incl. parts of CityLine and Bush Turnpike corridor). Dallas/Collin split is unusual among SB 840 analysis targets — either county alone satisfies the county prong, so the split does not change the outcome (city prong fails regardless).
  • Telecom Corridor legacy identity (US 75 between Arapaho and Campbell) from 1990s-2000s Cisco/Nortel/Ericsson/Fujitsu/Samsung/Alcatel-Lucent era; tech employer base has diversified (State Farm, BCBSTX, Texas Instruments nearby) but branding persists through Richardson Economic Development Partnership.
  • UT Dallas (enrollment ~31,000 students 2024-2025) creates continuing adjacency pressure at campus edge (Campbell Rd / Floyd / Synergy Park / Waterview). UTD Jindal School of Management expanded into CityLine via satellite facility. Student housing concentration management is a recurring planning-commission topic.
  • Mature built-out inner-ring DFW suburb (~28 sq mi, ~119k pop). Very limited greenfield; essentially all development is infill or redevelopment. HB 3699 5-acre+ platting exemption is operationally irrelevant (no 5-acre SF parcels).
  • Municode SPA (library.municode.com) returns shell HTML to scripted WebFetch; CZO 1956 article-level section bodies require browser-based retrieval. elaws.us mirror (richardson-tx.elaws.us) provides more scrapable text but is a secondary source. Most KPI values in this record carry status=partial pending browser-based retrieval; baseline structural parameters inferred from DFW-region norms.
  • Industrial floodplain variant districts I-FP(1) and I-FP(2) are unusual — Richardson explicitly codifies industrial-in-floodplain zoning as a district rather than as an overlay-only modifier. Tied to Spring Creek / Cottonwood Creek / Duck Creek corridors where legacy light industrial predates modern floodplain management.

Formulas

Definitions

height
Grade to highest point of structure; Richardson CZO 1956 SF districts typically cap at 35 ft (2.5 stories); mid-rise MF / apartment districts permit higher; CityLine MU / PD permits 8-15+ stories per approved PD.
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 CZO 1956 article for district.
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 CZO 1956 off-street parking article.
lot_area_encoding
District name encodes minimum lot area in sf (residential SF) or minimum floor area per unit (duplex/apartment). Trailing zero suppressed: R-1500-M = 15,000 sf min lot; R-850-F = 8,500 sf min lot. Suffix -F = front-entry (allows front-facing garage); -M = modern/masonry (architectural standards).

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
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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Min lot size
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District Category Height FAR Coverage Setbacks Parking Density Min lot Overlays

Sources & references

Primary source
Richardson Code of Ordinances, Part II (City Code), Appendix A — Comprehensive Zoning Ordinance of 1956
retrieved 2026-04-19
Secondary sources
Citations
  1. [1] §CZO-1956-SF
  2. [2] §CZO-1956-SF
  3. [3] §CZO-1956-SF
  4. [4] §CZO-1956-lot-area-encoding
  5. [5] §CZO-1956-SF
  6. [6] §CZO-1956-SF
  7. [7] §CZO-1956-SF
  8. [8] §derived
  9. [9] §off-street-parking
  10. [10] §CZO-1956-SF
  11. [11] §CZO-1956-SF
  12. [12] §CZO-1956-SF
  13. [13] §CZO-1956-lot-area-encoding
  14. [14] §CZO-1956-SF
  15. [15] §CZO-1956-SF
  16. [16] §CZO-1956-SF
  17. [17] §derived
  18. [18] §off-street-parking
  19. [19] §CZO-1956-SF
  20. [20] §CZO-1956-SF
  21. [21] §CZO-1956-SF
  22. [22] §CZO-1956-lot-area-encoding
  23. [23] §CZO-1956-SF
  24. [24] §CZO-1956-SF
  25. [25] §CZO-1956-SF
  26. [26] §derived
  27. [27] §off-street-parking
  28. [28] §CZO-1956-SF
  29. [29] §CZO-1956-SF
  30. [30] §CZO-1956-SF
  31. [31] §CZO-1956-lot-area-encoding
  32. [32] §CZO-1956-SF
  33. [33] §CZO-1956-SF
  34. [34] §CZO-1956-SF
  35. [35] §derived
  36. [36] §off-street-parking
  37. [37] §CZO-1956-SF
  38. [38] §CZO-1956-SF
  39. [39] §CZO-1956-SF
  40. [40] §CZO-1956-lot-area-encoding
  41. [41] §CZO-1956-SF
  42. [42] §CZO-1956-SF
  43. [43] §CZO-1956-SF
  44. [44] §derived
  45. [45] §off-street-parking
  46. [46] §CZO-1956-SF
  47. [47] §CZO-1956-SF
  48. [48] §CZO-1956-SF
  49. [49] §CZO-1956-lot-area-encoding
  50. [50] §CZO-1956-SF
  51. [51] §CZO-1956-SF
  52. [52] §CZO-1956-SF
  53. [53] §derived
  54. [54] §off-street-parking
  55. [55] §CZO-1956-SF
  56. [56] §CZO-1956-SF
  57. [57] §CZO-1956-SF
  58. [58] §CZO-1956-lot-area-encoding
  59. [59] §CZO-1956-SF
  60. [60] §CZO-1956-SF
  61. [61] §CZO-1956-SF
  62. [62] §derived
  63. [63] §off-street-parking
  64. [64] §CZO-1956-SF
  65. [65] §CZO-1956-SF
  66. [66] §CZO-1956-SF
  67. [67] §CZO-1956-lot-area-encoding
  68. [68] §CZO-1956-SF
  69. [69] §CZO-1956-SF
  70. [70] §CZO-1956-SF
  71. [71] §derived
  72. [72] §off-street-parking
  73. [73] §CZO-1956-SF
  74. [74] §CZO-1956-SF
  75. [75] §CZO-1956-SF
  76. [76] §CZO-1956-lot-area-encoding
  77. [77] §CZO-1956-SF
  78. [78] §CZO-1956-SF
  79. [79] §CZO-1956-SF
  80. [80] §derived
  81. [81] §off-street-parking
  82. [82] §CZO-1956-RA
  83. [83] §CZO-1956-RA
  84. [84] §CZO-1956-RA
  85. [85] §CZO-1956-RA
  86. [86] §CZO-1956-RA
  87. [87] §CZO-1956-RA
  88. [88] §CZO-1956-RA
  89. [89] §CZO-1956-RA
  90. [90] §off-street-parking
  91. [91] §CZO-1956-RP
  92. [92] §CZO-1956-RP
  93. [93] §CZO-1956-RP
  94. [94] §CZO-1956-RP
  95. [95] §CZO-1956-RP
  96. [96] §CZO-1956-RP
  97. [97] §CZO-1956-RP
  98. [98] §CZO-1956-RP
  99. [99] §off-street-parking
  100. [100] §CZO-1956-Duplex
  101. [101] §CZO-1956-Duplex
  102. [102] §CZO-1956-Duplex
  103. [103] §CZO-1956-Duplex
  104. [104] §CZO-1956-Duplex
  105. [105] §CZO-1956-Duplex
  106. [106] §CZO-1956-Duplex
  107. [107] §derived
  108. [108] §off-street-parking
  109. [109] §CZO-1956-Apt
  110. [110] §CZO-1956-Apt
  111. [111] §CZO-1956-Apt
  112. [112] §CZO-1956-Apt
  113. [113] §CZO-1956-Apt
  114. [114] §CZO-1956-Apt
  115. [115] §CZO-1956-Apt
  116. [116] §CZO-1956-Apt
  117. [117] §off-street-parking
  118. [118] §CZO-1956-Apt
  119. [119] §CZO-1956-Apt
  120. [120] §CZO-1956-Apt
  121. [121] §CZO-1956-Apt
  122. [122] §CZO-1956-Apt
  123. [123] §CZO-1956-Apt
  124. [124] §CZO-1956-Apt
  125. [125] §CZO-1956-Apt
  126. [126] §off-street-parking
  127. [127] §CZO-1956-Apt
  128. [128] §CZO-1956-Apt
  129. [129] §CZO-1956-Apt
  130. [130] §CZO-1956-Apt
  131. [131] §CZO-1956-Apt
  132. [132] §CZO-1956-Apt
  133. [133] §CZO-1956-Apt
  134. [134] §CZO-1956-Apt
  135. [135] §off-street-parking
  136. [136] §CZO-1956-Art-XVI-A
  137. [137] §CZO-1956-Art-XVI-A
  138. [138] §CZO-1956-Art-XVI-A
  139. [139] §CZO-1956-Art-XVI-A
  140. [140] §CZO-1956-Art-XVI-A
  141. [141] §CZO-1956-Art-XVI-A
  142. [142] §CZO-1956-Art-XVI-A
  143. [143] §off-street-parking
  144. [144] §CZO-1956-Art-XVI-B
  145. [145] §CZO-1956-Art-XVI-B
  146. [146] §CZO-1956-Art-XVI-B
  147. [147] §CZO-1956-Art-XVI-B
  148. [148] §CZO-1956-Art-XVI-B
  149. [149] §CZO-1956-Art-XVI-B
  150. [150] §CZO-1956-Art-XVI-B
  151. [151] §off-street-parking
  152. [152] §CZO-1956-Art-XVII
  153. [153] §CZO-1956-Art-XVII
  154. [154] §CZO-1956-Art-XVII
  155. [155] §CZO-1956-Art-XVII
  156. [156] §CZO-1956-Art-XVII
  157. [157] §CZO-1956-Art-XVII
  158. [158] §CZO-1956-Art-XVII
  159. [159] §off-street-parking
  160. [160] §CZO-1956-Office
  161. [161] §CZO-1956-Office
  162. [162] §CZO-1956-Office
  163. [163] §CZO-1956-Office
  164. [164] §CZO-1956-Office
  165. [165] §CZO-1956-Office
  166. [166] §CZO-1956-Office
  167. [167] §off-street-parking
  168. [168] §CZO-1956-TO
  169. [169] §CZO-1956-TO
  170. [170] §CZO-1956-TO
  171. [171] §CZO-1956-TO
  172. [172] §CZO-1956-TO
  173. [173] §CZO-1956-TO
  174. [174] §CZO-1956-TO
  175. [175] §off-street-parking
  176. [176] §CZO-1956-Art-XVIII
  177. [177] §CZO-1956-Art-XVIII
  178. [178] §CZO-1956-Art-XVIII
  179. [179] §CZO-1956-Art-XVIII
  180. [180] §CZO-1956-Art-XVIII
  181. [181] §CZO-1956-Art-XVIII
  182. [182] §CZO-1956-Art-XVIII
  183. [183] §off-street-parking
  184. [184] §CZO-1956-Art-XIX
  185. [185] §CZO-1956-Art-XIX
  186. [186] §CZO-1956-Art-XIX
  187. [187] §CZO-1956-Art-XIX
  188. [188] §CZO-1956-Art-XIX
  189. [189] §CZO-1956-Art-XIX
  190. [190] §CZO-1956-Art-XIX
  191. [191] §off-street-parking
  192. [192] §CZO-1956-Art-XIX-B
  193. [193] §CZO-1956-Art-XIX-B
  194. [194] §CZO-1956-Art-XIX-B
  195. [195] §CZO-1956-Art-XIX-B
  196. [196] §CZO-1956-Art-XIX-B
  197. [197] §CZO-1956-Art-XIX-B
  198. [198] §CZO-1956-Art-XIX-B
  199. [199] §off-street-parking
  200. [200] §CZO-1956-MU
  201. [201] §CZO-1956-MU
  202. [202] §CZO-1956-MU
  203. [203] §CZO-1956-MU
  204. [204] §CZO-1956-MU
  205. [205] §CZO-1956-MU
  206. [206] §CZO-1956-MU
  207. [207] §CZO-1956-MU
  208. [208] §off-street-parking

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

45%completeness14 confirmed80 partial5 inferred
Documented gaps
  • CZO 1956 Article-level dimensional tables (R-1500-M through A-850-F; LR/C/O/TO/I/IP) not retrieved live — dimensional values marked partial with DFW-regional-norm-derived estimates.
  • CityLine PD ordinance text (and subsidiary PDs) not retrieved — built-form parameters confirmed but ordinance citations partial.
  • Telecom Corridor overlay formal codification status unclear — may be comprehensive-plan/branding rather than a mapped overlay district.
  • Historic Downtown preservation overlay formal codification status unclear.
  • UT Dallas adjacency formal codification status unclear — may be site-plan-review-only rather than a named overlay.
  • FEMA Flood Damage Prevention chapter BFE freeboard specific value not direct-fetched.
  • Off-street parking article specific ratios not direct-fetched.
  • Post-2020 CZO amendments (Community Impact Feb 2026 article mentions pending comprehensive zoning update for more development) not fully catalogued — monitor for 2026-2027 rewrite.

Known issues

cohort:needs-dom-retrievalfreshness:stableblocker:municodedata:gaps-present

Verification

last_verified_at2026-04-19T00:00:00Z
verifier_specialistverification-pass
verifier_version1.0
verification_resultpassed
atomic_claims_checked24
atomic_claims_passed24
atomic_claims_failed0
failed_claims
narrative_refnarratives/richardson-tx/richardson-2026-04-19-wave5.json

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