Zoning › Virginia › Arlington County › Arlington

Arlington, VA Zoning

Euclidean-zoning. 15 districts · 6 overlays · 3 applicable state preemptions.

Overview

Code type
euclidean
Naming convention
mixed
Naming convention by category
res_sflot-size-encoded (R-20 = 20,000 sf min lot; R-10 = 10,000 sf, etc.)
res_mfdensity-encoded (RA14-26 = 14–26 du/ac range; RA8-18, RA7-16, RA6-15)

County-wide jurisdiction — no incorporated municipalities within Arlington County. Board of County Supervisors is governing authority. R-district naming encodes min lot area in square feet; RA-district naming encodes density range in du/ac. Two optional Form-Based Code overlays (CP-FBC §11.1, CPN-FBC §11.2) apply in Columbia Pike corridors in lieu of base zoning.

Worth knowing
  • County (not city) jurisdiction — entire Arlington County is governed by a single zoning ordinance; no incorporated municipalities within county bounds. Board of County Supervisors is the governing authority under Dillon's Rule.
  • Dual-track optional Form-Based Code overlays: CP-FBC (§11.1, Columbia Pike corridor) and CPN-FBC (§11.2, Columbia Pike Neighborhoods) — both are opt-in, not mandatory overlays; elected by property owners in lieu of base zoning.
  • Density-encoded RA district naming: RA14-26 = 14–26 du/ac range; RA8-18, RA7-16, RA6-15 similarly named. ACZO uses lot-area-per-unit internally (not explicit du/ac), but district names encode the range.

+ 9 more in Quirks & notes

Districts

res_sf 5res_mf 4res_th 3mu 3
CodeNameCategory Min lotHeight CoverageFAR Du/acParking Setbacks F/S/R
R-20One-Family Dwelling (20,000 sf)res_sf20,000 sf[4]35 ft[5]25[6]—[7]2.18[8]—[9]25[1] / 10[2] / 25[3]
R-10One-Family Dwelling (10,000 sf)res_sf10,000 sf[13]35 ft[14]32[15]—[16]4.36[17]—[18]25[10] / 10[11] / 25[12]
R-10TOne-Family / Townhouse (10,000 sf)res_th10,000 sf[22]35 ft[23]32[24]—[25]—[26]—[27]25[19] / 10[20] / 25[21]
R-8One-Family Dwelling (8,000 sf)res_sf8,000 sf[31]35 ft[32]35[33]—[34]5.45[35]—[36]25[28] / 10[29] / 25[30]
R-6One-Family Dwelling (6,000 sf)res_sf6,000 sf[40]35 ft[41]40[42]—[43]7.26[44]—[45]25[37] / 10[38] / 25[39]
R-5One-Family / Restricted Two-Family (5,000 sf)res_sf5,000 sf[49]35 ft[50]45[51]—[52]8.71[53]—[54]25[46] / 10[47] / 25[48]
R15-30TTownhouse Dwelling (15-30 du/ac)res_th5,000 sf[58]35 ft[59]45[60]—[61]—[62]—[63]25[55] / —[56] / 20[57]
R2-7Two-Family / Townhouse (3,500–7,000 sf)res_th5,000 sf[67]35 ft[68]40[69]—[70]—[71]—[72]25[64] / 10[65] / 25[66]
RA14-26Multiple-Family Dwelling (14-26 du/ac)res_mf7,500 sf[76]35 ft[77]40[78]—[79]—[80]—[81]25[73] / —[74] / 25[75]
RA8-18Multiple-Family Dwelling (8-18 du/ac)res_mf7,500 sf[85]40 ft[86]40[87]—[88]—[89]—[90]25[82] / —[83] / 25[84]
RA7-16Multiple-Family Dwelling (7-16 du/ac)res_mf7,500 sf[94]35 ft[95]—[96]—[97]—[98]—[99]25[91] / —[92] / 25[93]
RA6-15Multiple-Family Dwelling (6-15 du/ac)res_mf7,500 sf[103]60 ft[104]40[105]—[106]—[107]—[108]25[100] / —[101] / 25[102]
C-O-AMixed Use (Arlington Arts / General)mu—[112]—[113]—[114]—[115]—[116]—[117]—[109] / —[110] / —[111]
C-O RosslynRosslyn Coordinated Mixed-Usemu—[121]—[122]—[123]—[124]—[125]—[126]—[118] / —[119] / —[120]
C-O Crystal CityCrystal City Coordinated Mixed-Usemu—[130]—[131]—[132]—[133]—[134]—[135]—[127] / —[128] / —[129]

Confidence: confirmed partial under review not found

Overlays

CP-FBC
Columbia Pike Form Based Code
TOD
§11.1

Optional opt-in; eligible properties zoned S-3A, RA8-18, RA14-26, RA7-16, RA6-15, C-1, C-2, C-3, C-O, or C-O-1.0 within the Columbia Pike Special Revitalization District on the GLUP. Redevelopment must increase total developed space ≥50 percent to activate by-right FBC development. §11.1.2.

applicabilityProperties in Columbia Pike Special Revitalization District electing FBC development in lieu of base zoning. §11.1.2.
use_standardUse tables in §11.1.4/§11.1.5 govern; Appendix A Form Based Code sets all dimensional standards (build-to-lines, ground-story use requirements). §11.1.3.
activation_threshold_pctRedevelopment must increase total developed space by at least 50 percent for by-right P-designation activation. §11.1.4.A.1.
large_site_exception_sf40000
CPN-FBC
Columbia Pike Neighborhoods Form Based Code
TOD
§11.2

Optional opt-in; eligible properties zoned R-6, R-5, R2-7, R15-30T, RA14-26, RA8-18, RA7-16, RA6-15, C-1, or C-O within the Columbia Pike Neighborhoods Special Revitalization District on the GLUP. §11.2.2.A.

applicabilityProperties in Columbia Pike Neighborhoods Special Revitalization District electing FBC development. §11.2.2.
use_standardAppendix B of the Zoning Ordinance governs all permitted uses and dimensional standards once elected. §11.2.3.
goalsStabilize and strengthen residential neighborhoods; Promote creation and preservation of affordable housing; Create pedestrian-friendly and multi-modal corridor; Preserve neighborhood character, historic buildings, and tree canopy
HPO
Historic Preservation Overlay District
HP
§11.3

County Board designation of a local historic district after HALRB recommendation and public hearing. Application may be submitted by any resident, civic association, or petition of 25 percent of properties in proposed boundary. §11.3.4.A.

review_boardHistorical Affairs and Landmark Review Board (HALRB) — up to 15 members appointed by County Board; functions as Architectural Review Board per Va. Code §15.2-503.2. §11.3.2.A.
review_mechanismCertificate of Appropriateness (CoA) required for exterior alterations, new construction, additions, demolition, and landscaping within designated historic districts. §15.7.
design_guidelinesDistrict-specific Historic District Design Guidelines adopted by County Board upon designation; HALRB may make minor administrative amendments. §11.3.2.D.2(b).
designation_criteriaAt least 2 of 11 criteria must be met (NR eligibility, historical/cultural significance, architectural significance, work of master, etc.). §11.3.4.A.6.
enforcementVa. Code §15.2-2306 enabling authority; Dillon's Rule — Arlington could not operate HPO without this delegation.
FPD
Floodplain Management District
FP
Arlington County Code Ch. 48 (Floodplain Management)

Parcels within FEMA-mapped Special Flood Hazard Areas (SFHA) as shown on current FIRM panels. NFIP Community ID: 515520. Arlington participates in NFIP and CRS.

nfip_participatingTrue
nfip_community_id515520
freeboard_above_bfe_ft1
substantial_improvement_threshold_pct50
notesArlington County Code Ch. 48 codifies floodplain management ordinance meeting FEMA 44 CFR §60.3 minimum standards. Arlington also participates in CRS (Community Rating System) which may provide flood insurance premium discounts. County arlingtonva.us domain returned 403 for PDF retrieval; NFIP participation confirmed via VA DCR NFIP directory and search results.
ALAA
FAA Part 77 Aircraft Landing Approach Area
AP
§14.5 ACZO

Any building or structure meeting FAA 14 CFR Part 77 §77.9 notice criteria (construction or alteration exceeding FAA height thresholds near Reagan National Airport / DCA). §14.5.

faa_notice_requiredYes — buildings triggering 14 CFR Part 77 §77.9 notice criteria require FAA clearance letter before zoning administrator approval. §14.5.
primary_airportRonald Reagan Washington National Airport (DCA) — adjacent to Arlington County
federal_overlayFAA Part 77 imaginary surfaces — federal jurisdiction; ACZO implements via §14.5 administrative requirement.
CBPA-NA
Chesapeake Bay Preservation Act (State — not applicable)
ENV
Va. Code §62.1-44.15:67 et seq.

Not applicable. Arlington County is NOT in the list of 84 Tidewater Virginia localities subject to CBPA under §62.1-44.15:68. Arlington is an inland jurisdiction — no tidal waters, tidal wetlands, or tributary streams within CBPA scope.

applicableFalse
reasonArlington County is not enumerated in the Tidewater Virginia locality list under Va. Code §62.1-44.15:68. CBPA applies only to 29 counties, 17 cities, and 38 towns in Eastern Shore, Northern Neck, Middle Peninsula, Hampton Roads, and tidal-tributary jurisdictions.

State preemptions

VA_FAMILY_DAY_HOME_15_2_2292 — Va. Code §15.2-2292applies
Qualifying condition
Arlington County is a Virginia locality with residential zones (res_sf, res_mf, res_th) — §15.2-2292 applies statewide to all Virginia localities without population threshold. Family day homes serving 1–4 children must be permitted by right; 5–12 children administrative-permit process with neighbor notice. No threshold gating — applies unconditionally. Population: 239,800 (2024 Census PEP est.).
Source
Va. Code §15.2-2292; population from Census PEP 2024 estimate.
Effect
Family day homes serving 1–4 children treated as by-right residential use in all R/RA districts; no more restrictive conditions than single-family residence. 5–12 child homes: administrative permit with 30-day neighbor notice mandatory.
VA_GROUP_HOME_15_2_2291 — Va. Code §15.2-2291applies
Qualifying condition
Arlington County is a Virginia locality with R/RA residential zones — §15.2-2291 applies statewide to all Virginia localities without population threshold. Group homes ≤8 residents (licensed by VDBHDS or VDSS) and assisted living ≤8 residents must be classified as single-family residential use. Population: 239,800 (2024 Census PEP est.).
Source
Va. Code §15.2-2291; population from Census PEP 2024 estimate.
Effect
Group homes/assisted living ≤8 residents must be permitted as SFR in all R/RA districts; no conditions more restrictive than blood/marriage/adoption households.
VA_SMALL_CELL_WIRELESS_15_2_2316_4 — Va. Code §§15.2-2316.3/15.2-2316.4applies
Qualifying condition
Arlington County is a Virginia locality with all zoning districts — §15.2-2316.4 applies statewide to all Virginia localities; no population threshold. Small cell wireless facilities meeting the antenna ≤6 cu.ft. and equipment ≤28 cu.ft. criteria: administrative review only, 60-day shot clock, fee caps apply. Population: 239,800 (2024 Census PEP est.).
Source
Va. Code §§15.2-2316.3–15.2-2316.4; population from Census PEP 2024 estimate.
Effect
Co-location of qualifying small cells: administrative review only, no SUP/variance permissible. 60-day shot clock; $100 first 5 facilities, $50 each additional up to 35. No mandatory aesthetic conditions.
Non-applicable laws (3)
VA_RIGHT_TO_FARM_3_2_301 — Va. Code §§3.2-300 to 3.2-302does_not_apply
Qualifying condition
Arlington County has no agricultural districts (ag category) in ACZO. The county is fully urbanized. VA Right-to-Farm preemption requires parcel.base_zone_category = agricultural. No R/RA/C/M/P districts carry agricultural classification in Arlington. Population: 239,800 (2024).
Source
ACZO Articles 4–8 district listing; no agricultural zone identified.
Effect
Not applicable — no agricultural zoning districts exist in Arlington County.
VA_CHESAPEAKE_BAY_PRESERVATION_ACT — Va. Code §§62.1-44.15:67 et seq.does_not_apply
Qualifying condition
Arlington County is NOT enumerated in the 84 Tidewater Virginia localities subject to CBPA under Va. Code §62.1-44.15:68. Arlington is an inland jurisdiction; no tidal waters or tributary streams within CBPA scope. The 84 qualifying localities are in Eastern Shore, Northern Neck, Middle Peninsula, Hampton Roads, and tidal-tributary areas only.
Source
Va. Code §62.1-44.15:68 locality list; overlays.json VA_CHESAPEAKE_BAY_PRESERVATION_ACT notes.
Effect
Not applicable.
VA_2024_2025_HOUSING_PREEMPTION_ATTEMPTS — (None enacted)does_not_apply
Qualifying condition
Virginia has not enacted any missing-middle / ADU / single-family-upzoning preemption as of May 2026. HB 900 (2024 ADU), SB 304 (2024 ADU), HB 636 (2024 energy facility) all failed. Virginia retains full local zoning authority over residential density and ADUs. Per overlays.json VA_2024_2025_HOUSING_PREEMPTION_ATTEMPTS status=not_enacted, trigger_predicate=never.
Source
overlays.json VA_2024_2025_HOUSING_PREEMPTION_ATTEMPTS; LIS bill tracking 2024–2025 session.
Effect
Not applicable.

Adopted building codes

Statewide — VA Uniform SBC

IBC
2021
IRC
2021
NEC
2020
IFC
2021
IECC (Residential)
2021
IECC (Commercial)
2021

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

Amendment history

DateKindCitation
2026-03-14amendment effectivearlingtonva.us — aczo_effective_03.14.2026.pdf (most current version; not retrieved due to Akamai 403)
2019-07-16effectiveACZO cover page — Effective July 16, 2019 (S3 PDF, basis for district research)

Quirks & notes

  • County (not city) jurisdiction — entire Arlington County is governed by a single zoning ordinance; no incorporated municipalities within county bounds. Board of County Supervisors is the governing authority under Dillon's Rule.
  • Dual-track optional Form-Based Code overlays: CP-FBC (§11.1, Columbia Pike corridor) and CPN-FBC (§11.2, Columbia Pike Neighborhoods) — both are opt-in, not mandatory overlays; elected by property owners in lieu of base zoning.
  • Density-encoded RA district naming: RA14-26 = 14–26 du/ac range; RA8-18, RA7-16, RA6-15 similarly named. ACZO uses lot-area-per-unit internally (not explicit du/ac), but district names encode the range.
  • Lot-size-encoded R district naming: R-20=20,000sf min, R-10=10,000sf, R-8=8,000sf, R-6=6,000sf, R-5=5,000sf. R15-30T deviates — name encodes density (15–30 du/ac), not lot size.
  • No explicit FAR caps in any R or RA residential district — lot coverage and lot-area-per-unit serve as the density controls.
  • Lot coverage table in §3.2.5.A uses five-column classification: R-5/R15-30T (45%), R-6/R2-7/RA/C/M (40%), R-8 (35%), R-10/R-10T (32%), R-20 (25%). Porch and rear-garage bonuses apply per each column.
  • FAA Part 77 clearance required for any structure meeting 14 CFR §77.9 notice criteria due to proximity to Reagan National Airport (DCA). §14.5 ACZO.
  • Parking is parcel-condition dependent for SF: 1 space/du (not on cul-de-sac) vs. 2 spaces/du (on cul-de-sac). §14.3.7.
  • Special Revitalization Districts (Article 9): Clarendon (§9.2), Fort Myer Heights North (§9.3), Radnor Heights East (§9.4), Western Rosslyn CRD (§9.5) — each has modified height/FAR provisions; Western Rosslyn allows up to 175ft and 500% GFA bonus for preservation.
  • Historic Preservation Overlay (§11.3) operates via Certificate of Appropriateness (CoA) before HALRB; Arlington is a VA Certified Local Government (CLG). Known local historic districts: Maywood Historic District, Clarendon School Historic District.
  • Large-scale housing projects in RA14-26 (≥5 acres) may build up to 6 stories/60ft if set back ≥150ft from all site boundaries. §6.2.D.1.
  • National Landing (Amazon HQ2 area) — no separate zoning overlay; governed by C-O Crystal City district (§7.16) and adjacent commercial districts. No ACZO special district has been enacted specifically for National Landing as of 2019 ACZO.

Formulas

Definitions

height
Grade to highest point of structure. §3.2.2.
lot_coverage
Building footprint (all structures) / lot area. One-family dwelling table in §3.2.5.A; non-one-family in §3.2.5.B.
far
Not explicitly capped in R or RA residential districts — lot-based density control only. FAR used in C/M/S-D/P districts. §3.2.
du_ac
Dwelling units per gross acre. Derived from lot-area-per-unit minimums in each district where stated; ACZO uses sq-ft-per-unit, not explicit du/ac caps for most R districts.
impervious_cover
Not explicitly tracked as a zoning KPI in ACZO. R15-30T §5.8 limits townhouse project impervious to 50 percent. §3.2 lot coverage serves as the primary impervious proxy.
setback_front
Front property line (street right-of-way line) to nearest building face. §3.2.6.A.1(e): minimum 25ft; may be reduced to block-face average or 15ft minimum (whichever larger) for one- and two-family dwellings.
setback_side
Side lot line to nearest building face. §3.2.6.A.2(b): 10ft; one side may be 8ft; aggregate ≥30% of required lot width on interior lots.
setback_rear
Rear lot line to nearest building face. §3.2.6.A.2(b): interior lots ≥25ft from rear lot line.
parking
Off-street spaces per dwelling unit. §14.3.7: 1 space/du (SF not on cul-de-sac); 2 spaces/du (SF on cul-de-sac); TH/stacked = 2 + 0.2 visitors/du.

Capacity calculations

max_footprint_sf
lot_area_sf * lot_coverage
max_units_from_density
lot_area_sf / lot_area_per_unit_sf
buildable_width_ft
lot_width_ft - (setback_side_ft * 2)
buildable_depth_ft
lot_depth_ft - setback_front_ft - setback_rear_ft
buildable_envelope_sf
buildable_width_ft * buildable_depth_ft
max_stories_approx
max_height_ft / 10
parking_required
units * parking_ratio

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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District Category Height FAR Coverage Setbacks Parking Density Min lot Overlays

Sources & references

Citations
  1. [1] §3.2.6.A.1.e
  2. [2] §3.2.6.A.2.b
  3. [3] §3.2.6.A.2.b
  4. [4] §5.2
  5. [5] §5.2
  6. [6] §3.2.5.A
  7. [7] n
  8. [8] i
  9. [9] §14.3.7
  10. [10] §3.2.6.A.1.e
  11. [11] §3.2.6.A.2.b
  12. [12] §3.2.6.A.2.b
  13. [13] §5.3
  14. [14] §5.3
  15. [15] §3.2.5.A
  16. [16] n
  17. [17] i
  18. [18] §14.3.7
  19. [19] §3.2.6.A.1.e
  20. [20] §3.2.6.A.2.b
  21. [21] §3.2.6.A.2.b/§5.4.A.2.c
  22. [22] §5.4
  23. [23] §5.4
  24. [24] §3.2.5.A
  25. [25] n
  26. [26] §5.4
  27. [27] §14.3.7
  28. [28] §3.2.6.A.1.e
  29. [29] §3.2.6.A.2.b
  30. [30] §3.2.6.A.2.b
  31. [31] §5.5
  32. [32] §5.5
  33. [33] §3.2.5.A
  34. [34] n
  35. [35] i
  36. [36] §14.3.7
  37. [37] §3.2.6.A.1.e
  38. [38] §3.2.6.A.2.b
  39. [39] §3.2.6.A.2.b
  40. [40] §5.6
  41. [41] §5.6
  42. [42] §3.2.5.A
  43. [43] n
  44. [44] i
  45. [45] §14.3.7
  46. [46] §3.2.6.A.1.e
  47. [47] §3.2.6.A.2.b
  48. [48] §3.2.6.A.2.b
  49. [49] §5.7
  50. [50] §5.7
  51. [51] §3.2.5.A
  52. [52] n
  53. [53] i
  54. [54] §14.3.7
  55. [55] §5.8.B/§3.2.6.A.1.e
  56. [56] §5.8.B
  57. [57] §5.8.B
  58. [58] §5.8
  59. [59] §5.8
  60. [60] §3.2.5.A
  61. [61] n
  62. [62] §5.8
  63. [63] §14.3.7
  64. [64] §3.2.6.A.1.e
  65. [65] §3.2.6.A.2.b
  66. [66] §3.2.6.A.2.b
  67. [67] §5.9
  68. [68] §5.9
  69. [69] §3.2.5.A
  70. [70] n
  71. [71] §5.9
  72. [72] §14.3.7
  73. [73] §3.2.6.A.1.d
  74. [74] §3.2.6.A.2.e
  75. [75] §3.2.6.A.2.e
  76. [76] §6.2
  77. [77] §6.2
  78. [78] §3.2.5.A
  79. [79] n
  80. [80] §6.2
  81. [81] §14.3.7
  82. [82] §3.2.6.A.1.d
  83. [83] §3.2.6.A.2.e
  84. [84] §3.2.6.A.2.e
  85. [85] §6.3
  86. [86] §6.3
  87. [87] §3.2.5.A
  88. [88] n
  89. [89] §6.3
  90. [90] §14.3.7
  91. [91] §3.2.6.A.1.d
  92. [92] §3.2.6.A.2.e
  93. [93] §3.2.6.A.2.e
  94. [94] §6.4
  95. [95] §6.4
  96. [96] §6.4
  97. [97] n
  98. [98] §6.4
  99. [99] §14.3.7
  100. [100] §3.2.6.A.1.d
  101. [101] §3.2.6.A.2.e
  102. [102] §3.2.6.A.2.e
  103. [103] §6.5
  104. [104] §6.5
  105. [105] §3.2.5.A
  106. [106] n
  107. [107] §6.5
  108. [108] §14.3.7
  109. [109] §3.2.6.A.1.a
  110. [110] §3.2.6.A.2.a
  111. [111] §3.2.6.A.2.a
  112. [112] §7.14
  113. [113] §7.14
  114. [114] n
  115. [115] §7.14
  116. [116] n
  117. [117] §14.3.7
  118. [118] §3.2.6.A.1.b
  119. [119] n
  120. [120] n
  121. [121] §7.15
  122. [122] §7.15
  123. [123] n
  124. [124] §7.15
  125. [125] n
  126. [126] §14.3.7
  127. [127] §3.2.6.A.1.b
  128. [128] n
  129. [129] n
  130. [130] §7.16
  131. [131] §7.16
  132. [132] n
  133. [133] §7.16
  134. [134] n
  135. [135] §14.3.7

Research status

Publication gates

primary url presentpassedcode_source = https://www.arlingtonva.us/Government/Programs/Building/Codes-Ordinances/Zoning — official county government domain (arlingtonva.us), not an aggregator. §5.2–§6.5, §3.2, §11, §14.3, §14.5 extracted from primary S3 PDF https://arlingtonva.s3.dualstack.us-east-1.amazonaws.com/wp-content/uploads/sites/38/2016/06/ACZO.pdf (2019 effective). Current 2026 version confirmed via search but Akamai-blocked for retrieval.
no aggregator citedpassedScan clean — no Zoneomics, Steadily, SitePlanGuide, SitePlanCreator, Propwire, Zonara, or Unzoned citations in this record. All citations reference ACZO section numbers (§3.2, §5.2–§6.5, §11.1–§11.3, §14.3, §14.5) or Virginia Code sections directly.
confidence tags full formpassed48 confirmed fields carry §-citations (c§5.2, c§5.3, c§5.4, c§5.5, c§5.6, c§5.7, c§5.8, c§5.9, c§6.2–§6.5, c§3.2.5.A, c§3.2.6.A.1.e, c§3.2.6.A.1.d, c§3.2.6.A.2.b, c§3.2.6.A.2.e, c§11.1–§11.3, c§14.5, c§14.3.7, c§62.1-44.15:68). All inferred fields marked 'i' with explicit derivation note. All partial fields marked 'p' with retrieval_failure_reason. No bare confirmed tags.
overlays have parameters trigger confidencepassedAll 6 overlays (CP-FBC §11.1, CPN-FBC §11.2, HPO §11.3, FPD Ch.48, ALAA §14.5, CBPA-NA) have: non-empty params object, geographic_trigger text, status confidence code (c§ or p§), and citation. FPD marked partial with retrieval_failure_reason due to Akamai 403 on Ch.48 PDF.
preempt section city specificpassed6 VA preemption laws evaluated with city-specific qualifying_condition_checked entries: VA_FAMILY_DAY_HOME_15_2_2292 (applies — no threshold; statewide), VA_GROUP_HOME_15_2_2291 (applies — statewide), VA_SMALL_CELL_WIRELESS (applies — statewide), VA_RIGHT_TO_FARM (does_not_apply — no ag districts), VA_CHESAPEAKE_BAY_PRESERVATION_ACT (does_not_apply — not in Tidewater locality list §62.1-44.15:68), VA_2024_2025_HOUSING_PREEMPTION_ATTEMPTS (does_not_apply — none enacted). Each entry includes numeric inputs or statute-text basis. Virginia is NOT on the active-preemption-state list (CA/TX/FL/WA/OR/MT/CO/UT/AZ/NJ/CT) but state-specific overlays evaluated per overlays.json.

Data quality

72%completeness48 confirmed22 partial6 inferred12 not found
Documented gaps
  • Commercial district (C-O-A, C-O Rosslyn, C-O Crystal City, C-1, C-2, C-3, CM, M-1, M-2) FAR and height dimensions not extracted — §7.x sections not pulled in this pass
  • §7.14–§7.20 commercial district dimensional tables deferred — arlingtonva.us PDF blocked by Akamai; 2019 S3 PDF parsed but §7 extraction not executed due to tool-call budget
  • RA7-16 MF lot coverage not explicitly stated in §6.4.A (non-residential 50% stated; MF relies on §3.2.5.B 56% general rule)
  • MF setback_side_ft is height-formula-based (10ft + 1ft/2.5ft above 25ft) — not a fixed scalar; not captured as numeric KPI
  • Arlington County Code Ch. 48 (Floodplain) PDF blocked (Akamai 403) — freeboard and CRS tier not confirmed from primary source
  • Local historic districts list not confirmed from primary source (arlingtonva.us domain 403-gated) — only Maywood and Clarendon School known from search
  • 2026 ACZO PDF not retrieved due to Akamai 403; district structure confirmed same as 2019 via search results showing same article/section organization

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