Zoning › Texas › Nueces County › Corpus Christi

Corpus Christi, TX Zoning

Euclidean-zoning. 21 districts · 11 overlays · 4 applicable state preemptions.

Overview

Code type
euclidean
Naming convention
mixed
Naming convention by category
res_sflot-size-encoded (RS-15 = 15,000 sf min lot, RS-10 = 10,000 sf, RS-6 = 6,000 sf)
res_mfuse-type-index (RM-1 low, RM-2 medium, RM-3 high; numbers index intensity tier, not dimension)
com_off_indletter-code (CN-1/CN-2, CBD, CI, BP, ON, IL, IH, PI)

Euclidean use-based district system with conventional base + overlay structure. Single-family districts encode minimum lot area in the code number (lot-size-encoded). Multifamily districts use an ordinal intensity index. ReCode (2022–2026) is modernizing standards but the code type remains euclidean.

Worth knowing
  • AICUZ dominates northside and portions of southside development (NAS Corpus Christi noise contours 55/60/65/70 dB, APZ I/II, clear zones). Creates federal_state_conflict with TX SB 840 height floors within imaginary surfaces; federal DoD/FAA overlay supersedes.
  • Floodplain regulation is administered via a separate ordinance track rather than being integrated into the UDC main structure — dual-layer compliance required for any parcel touching FEMA A/V-zones.
  • Coastal/surge constraints: BFE+2 ft freeboard, V-zone pile foundations, Texas GLO Beach/Dune Rules on Gulf-front Padre/Mustang Island portions of city.

+ 7 more in Quirks & notes

Districts

res_mf 5res_sf 4com 3ind 3off 2ag 1res_th 1cbd 1mu 1
CodeNameCategory Min lotHeight CoverageFAR Du/acParking Setbacks F/S/R
FRFuture Reserve (Undeveloped)ag87,120 sf[4]35 ft[5]0.1[6]—0.5[7]—30[1] / 30[2] / 30[3]
REEstate Residentialres_sf43,560 sf[11]35 ft[12]0.2[13]—1[14]—25[8] / 25[9] / 25[10]
RS-15Residential Single-Family 15,000 sfres_sf15,000 sf[18]35 ft[19]0.35[20]—2.9[21]—20[15] / 10[16] / 20[17]
RS-10Residential Single-Family 10,000 sfres_sf10,000 sf[25]35 ft[26]0.4[27]—4.4[28]—20[22] / 8[23] / 20[24]
RS-6Residential Single-Family 6,000 sfres_sf6,000 sf[32]35 ft[33]0.5[34]—7.3[35]—15[29] / 5[30] / 15[31]
RM-ATResidential Multi-Family Attainable Housingres_mf5,000 sf[39]45 ft[40]0.6[41]1.5[42]18[43]1[44]10[36] / 5[37] / 10[38]
RM-1Residential Multi-Family Lowres_mf5,000 sf[48]45 ft[49]0.6[50]1.5[51]20[52]1.5[53]10[45] / 5[46] / 10[47]
RM-2Residential Multi-Family Mediumres_mf5,000 sf[57]55 ft[58]0.65[59]2[60]30[61]1.5[62]10[54] / 5[55] / 10[56]
RM-3Residential Multi-Family Highres_mf5,000 sf[66]65 ft[67]0.7[68]2.5[69]40[70]1.5[71]10[63] / 5[64] / 10[65]
RMHResidential Mobile Homeres_mf3,000 sf[75]35 ft[76]0.4[77]—14.5[78]2[79]15[72] / 5[73] / 15[74]
CHResidential Clustered Housing (Townhouse)res_th2,000 sf[83]40 ft[84]0.55[85]1.2[86]15[87]1.5[88]10[80] / 0[81] / 10[82]
CN-1Commercial Neighborhoodcom5,000 sf[92]45 ft[93]0.75[94]1[95]—3[96]10[89] / 5[90] / 10[91]
CN-2Commercial Neighborhood Generalcom5,000 sf[100]50 ft[101]0.8[102]1.25[103]—3.5[104]10[97] / 5[98] / 10[99]
CBDCentral Business Districtcbd5,000 sf[108]-1 ft[109]1[110]10[111]—2[112]0[105] / 0[106] / 0[107]
CICommercial Industrialcom10,000 sf[116]60 ft[117]0.8[118]1.5[119]—2[120]15[113] / 10[114] / 15[115]
BPBusiness Parkoff20,000 sf[124]50 ft[125]0.4[126]1[127]—4[128]30[121] / 15[122] / 15[123]
ONOffice Non-Residentialoff5,000 sf[132]50 ft[133]0.6[134]1.5[135]—3.5[136]15[129] / 10[130] / 15[131]
MUMixed-Usemu5,000 sf[140]65 ft[141]0.8[142]2.5[143]35[144]1.5[145]0[137] / 5[138] / 10[139]
ILIndustrial Lightind20,000 sf[149]60 ft[150]0.7[151]1.5[152]—2[153]20[146] / 15[147] / 15[148]
IHIndustrial Heavyind40,000 sf[157]75 ft[158]0.75[159]2[160]—1.5[161]30[154] / 20[155] / 20[156]
PIPort Industrialind50,000 sf[165]100 ft[166]0.8[167]——1[168]20[162] / 15[163] / 20[164]

Confidence: confirmed partial under review not found

Overlays

AICUZ
AICUZ — Air Installation Compatible Use Zones (NAS Corpus Christi + Corpus Christi International)
AP
UDC §6 Special Overlay Districts (AICUZ) + Port-Airport-Airport Development Plan (ADP) · UDC §6 (Special Overlay Districts — AICUZ); ADP 2024
noise_contour_65dbHeavily restricted — residential and other incompatible uses prohibited
noise_contour_60dbRestricted — residential density limited, sound attenuation required
clear_zonesMinimal development; CZ bars most habitable structures
apz_iLow-density only; no residential dwellings, schools, hospitals
apz_iiLimited-density residential with sound attenuation; some commercial permitted
federal_reference14 CFR Part 77 imaginary surfaces; DoD AICUZ program
CFS
Coastal Flood & Surge Overlay
FP
Separate Floodplain Management Ordinance (not integrated into UDC); UDC §7 references · City Floodplain Ordinance; UDC §7 cross-ref
floodplain_freeboard_ft2
minimum_elevationBFE + 2 ft
surge_zone_restrictionCritical for bayside and island development
v_zone_pile_foundation_requiredTrue
floodway_encroachment_prohibitedTrue
basement_prohibited_in_sfhaTrue
H
Historic Overlay
HP
UDC §6 Historic District designation · UDC §6 (Historic District sub-article)
design_review_requiredHPC / Landmark Commission review for exterior alterations
demolition_restrictionSubject to review; moratorium possible
facade_alteration_reviewMaterial, fenestration, signage controlled
new_construction_compatibilityHeight, massing, setback consistent with historic context
IO
Island Overlay
CON
UDC §6 — Island-specific development rules (Padre Island / Mustang Island) · UDC §6 (Island Overlay)
density_limitLower density to preserve island character — partial
use_restrictionMixed-use and residential primary; heavy commercial/industrial excluded
coastal_construction_line_setbackSeaward CCL setback from Texas GLO Beach/Dune Rules
v_zone_elevation_requiredTrue
MU
Mixed-Use Overlay
TOD
UDC §6 — Mixed-use corridor and activity center designation · UDC §6 (MU Overlay) + ReCode MU amendments
ground_floor_retailRequired in some MU corridor segments
residential_aboveEncouraged/required in upper stories
parking_reduction_pct25
shared_parking_allowedTrue
build_to_line_ft0–10 ft at corridor frontage
CC/IC
Compatible Zoning Overlay (Compatibility Buffer)
CON
UDC §5 / §6 — Compatibility buffer designations · UDC §5/§6 (Compatibility)
buffer_width_ftVaries by district pair; typical 25–100 ft
screening_requirementLandscape / opaque fencing required
use_restrictionLimits industrial uses within zone; requires transitional-use layer
lighting_shielding_requiredTrue
PUD
Planned Unit Development (PUD)
PD
UDC §6 — Planned Unit Development overlay · UDC §6 (PUD)
minimum_acreage5
site_plan_requiredTrue
flexibilityStandards may be modified by approved site plan
density_bonus_availableTrue
city_council_approval_requiredTrue
CD
Clustered Development Overlay
CON
UDC §6 / §5 — Cluster development incentives · UDC §6 (Clustered Development)
minimum_parcel_acres10
density_bonus_pct_max20
open_space_conservation_required_pct≥ 40% (typical)
setback_reduction_availableTrue
CBD-BASE
Downtown / CBD context — no distinct overlay (handled via CBD base district)
DT
UDC §3 (CBD base district); no separate downtown overlay found · UDC §3 (CBD)
height_limitUnlimited (via CBD base district)
setback_min_ft0
no_separate_dt_overlayTrue
CORRIDOR-NONE
Corridor / Highway overlay — verified absence (beyond MU corridors)
COR
n/a · Verified absence via UDC TOC scan
no_dedicated_highway_overlayTrue
AH-NONE
Affordable-Housing bonus overlay — not a standalone overlay; RM-AT district handles it
AH
n/a (RM-AT base district) · UDC §3 (RM-AT)
no_standalone_ah_overlayTrue
handled_via_base_districtRM-AT

State preemptions

TX SB 840applies
Qualifying condition
City population 317,000 (Census PEP 2023) ≥ 150,000 threshold AND Nueces County population 362,000 (Census PEP 2023) ≥ 300,000 threshold. Both gates met.
Source
US Census Bureau Population Estimates Program (PEP), 2023 vintage
Effect
Multifamily-by-right in commercial (CN-1, CN-2, CI, CBD), office (BP, ON), mixed-use (MU), and warehouse (IL) zones at ≥36 du/ac, ≥45 ft height (or city's highest allowed, whichever greater), ≤25 ft setbacks, ≤1 parking space per unit. Discretionary review waived.
TX SB 15applies
Qualifying condition
Lot-size threshold (≤4,000 sf) applies statewide without population precondition; Corpus Christi has qualifying small lots especially in older core and townhome (CH) district.
Source
TX SB 15 (88th Legislature) text; state-overlays/texas.json#TX_SB15_SMALL_LOT_DEREGULATION_2025
Effect
Limits city regulation of setbacks, parking, height, and bulk on lots ≤4,000 sf. Unlocks 'missing middle' on small urban lots in RS-6 / CH / older downtown platted lots.
TX SB 2038applies
Qualifying condition
Corpus Christi is a home-rule city (pop 317k) with ETJ per TX LGC §42.021; SB 2038 enables owner-initiated ETJ release statewide.
Source
TX LGC §42.021; SB 2038 (88th Legislature, eff. 2023-09-01)
Effect
Property owners may petition release from Corpus Christi's ETJ; constrains city's ability to retain ETJ jurisdiction for platting/ordinance enforcement.
TX HB 2127 (Texas Regulatory Consistency Act)applies
Qualifying condition
Statewide; applies to all Texas home-rule cities including Corpus Christi.
Source
TX HB 2127 (88th Legislature, eff. 2023-09-01)
Effect
Preempts municipal regulations in fields occupied by state law (agriculture, business/commerce, finance, labor, natural resources, occupations, property). Ancillary to zoning — affects business-operations ordinances adjacent to land use.

Adopted building codes

Home rule; major cities on 2024 IBC

IBC
2021
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.

Amendment history

DateKindCitation
2026-04-19retrieved atfleet-20260419T172230-11
2011-07-01effectiveUDC adoption effective 7/1/2011

Quirks & notes

  • AICUZ dominates northside and portions of southside development (NAS Corpus Christi noise contours 55/60/65/70 dB, APZ I/II, clear zones). Creates federal_state_conflict with TX SB 840 height floors within imaginary surfaces; federal DoD/FAA overlay supersedes.
  • Floodplain regulation is administered via a separate ordinance track rather than being integrated into the UDC main structure — dual-layer compliance required for any parcel touching FEMA A/V-zones.
  • Coastal/surge constraints: BFE+2 ft freeboard, V-zone pile foundations, Texas GLO Beach/Dune Rules on Gulf-front Padre/Mustang Island portions of city.
  • CBD base district has unlimited height and zero setbacks — effectively 'downtown overlay' function handled inside the base district, so no standalone DT overlay exists.
  • RM-AT district is a hybrid MF + affordability regulatory layer baked into a base district (not an overlay). Lower parking ratio (1.0/unit) anticipates SB 840 cap.
  • CC/IC compatibility buffer is Corpus-specific — used to surgically transition industrial/commercial to residential without rezoning; common around CI/IL frontages.
  • Island Overlay (IO) on Padre/Mustang Island sits on top of V-zone floodplain and GLO beach/dune setback — stacking effectively creates the most restrictive regime in the city.
  • Port of Corpus Christi is the largest US port by tonnage; PI (Port Industrial) base district permits 100 ft heights for cargo handling. Port Authority has concurrent proprietary jurisdiction.
  • ReCode comprehensive UDC update (2022–2026) is modernizing standards; current on-book text is still the 2011 UDC as amended — verify any section with ReCode amendment tracker before transactional use.
  • EncodePlus hosts the live UDC body; section-level text retrieval in this v2 run came from v1 research.md (2026-04-08) structural facts rather than section-verbatim fetch (EncodePlus doc-viewer is JS-rendered).

Formulas

Definitions

height
Grade to highest point of structure. Measured per UDC Article 5 height-definition standard.
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.
height_setback_ratio
Height transitions with distance from property lines. Proportional setback required in some districts for visual transition.
parking_reduction
Up to 25% reduction for mixed-use, transit proximity, or shared parking.
floodplain_freeboard
Base Flood Elevation (BFE) plus 2 feet minimum elevation requirement (separate floodplain ordinance, not UDC).

Capacity calculations

max_footprint_sf
lot_area_sf * lot_coverage
max_gfa_sf
lot_area_sf * far
max_units_from_density
lot_area_sf * du_ac / 43560
parking_demand_base
units * parking_ratio_spaces_per_unit
parking_demand_reduced
parking_demand_base * 0.75

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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Parking
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— du/ac
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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
Corpus Christi Unified Development Code (UDC)
city-hosted · UDC — Articles 3 (Base Districts), 5 (Development Standards), 6 (Special Overlay Districts), 7 (Flood) · UDC 2011 supplement with 2023–2026 ReCode amendments · retrieved 2026-04-19

V1_URL_HINT (city-hosted UDC landing page) live and verified. Full UDC body is hosted on EncodePlus (online.encodeplus.com/regs/corpuschristi-tx/); section-level retrieval via EncodePlus doc-viewer is JS-rendered and was not deeply fetched during this run — structural facts carried forward from v1 research.md (2026-04-08) and ReCode amendment tracking. ReCode comprehensive UDC update is in adoption phases 2023–2026; current on-book text remains the 2011 UDC as amended.

Secondary sources
Citations
  1. [1] §UDC-3
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Research status

Publication gates

primary url presentpassedhttps://www.corpuschristitx.gov/department-directory/development-services/unified-development-code-udc/ — city-hosted, https, not an aggregator
no aggregator citedpassedscan clean — no zoneomics/steadily/siteplanguide/etc. in record
confidence tags full formpassedAll confirmed KPIs carry c§UDC-3 or c§UDC-6 citations; overlays carry c§UDC-6 / c§FPO
overlays have parameters trigger confidencepassedAll 11 overlay entries (8 present + 3 documented-absences) have non-empty params, geographic_trigger, status, citation
preempt section city specificpassed4 TX preemption laws evaluated with city-specific qualifying_condition_checked strings including numeric pop/county/vintage inputs

Data quality

80%completeness18 confirmed3 partial2 inferred3 not found
Documented gaps
  • IO (Island Overlay) numeric density caps and use list not section-verbatim retrieved
  • CC/IC compatibility buffer widths and screening thresholds not section-verbatim retrieved
  • CD (Clustered Development) open-space percentage floor and per-district bonus formulas not section-verbatim retrieved
  • CBD FAR cap not explicit in code — 10.0 inferred as practical ceiling
  • Parking-reduction percentages for MU/transit/shared parking noted as 'up to 25%' but specific matrix not captured
  • Floodplain freeboard precise value confirmed at BFE+2 ft; V-zone and surge-zone specific numeric depth-based adjustments housed in separate ordinance

Known issues

data:gaps-present

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