Brookhollow

Also known as Stemmons Corridor, Design District, Love Field, Medical District, West Dallas, Brookhollow Industrial District, Trinity Groves

ADU Pass helps homeowners in Brookhollow — a USPS locale inside Dallas, No County, Texas — navigate the permit paperwork for building an accessory dwelling unit. This locale covers 2 ZIP codes.

2 ZIP codes

Locale-specific ADU details

Site (parcel physics)

Slope:

Mean slope2.5%
Parcels over 12% slope3%

Soil:

Dominant classHouston Black clay (Vertisol) with Trinity River alluvium along the floodplain; some Stephen silty clay and Sanger clay on the uplands
Expansive clay risk85%
Liquefaction risk5%

Lot profile:

Median lot size6,500 sqft
Median lot width50 ft
Median existing FAR0.22
Parcels with alley access55%
Flag-lot parcels2%

Geo-hazards:

Seismic designationSeismic Design Category A (lowest). Dallas is in IBC/IRC SDC A per ASCE 7 mapping — no seismic retrofit requirements for residential ADUs.
Parcels in FEMA SFHA18%
Bedrock depth (median)25 ft
Groundwater depth (median)15 ft

Recent ADU permit activity

Window12 months ending 2024-12-31
Approved / withdrawn / denied0 / 0 / 0

Utility capacity (upgrade likelihood)

Housing stock age:

% built pre-196045%
% built pre-198068%
Median year built1,958

Electric service drop:

% overhead service82%
Panel-upgrade likelihood65%

Sewer lateral:

Replacement likelihood55%
Typical replacement cost$7,500

Water pressure:

ZoneDallas Water Utilities Central Service Zone (lower-elevation Trinity terrace)
Typical PSI70 psi
Sprinkler trigger PSI40 psi

Gas availability: available — Atmos Energy Mid-Tex Division serves all of Dallas including Brookhollow. No all-electric mandate or gas ban in Dallas as of 2026-04-21.

Locale property values

Median value$175,000
Median tax$2,905/yr
Effective rate1.7%

Locale market rent

Sq ftRent
400$950/mo
600$1,125/mo
800$1,275/mo

Locale overlays (2)

  • flood-zone — Significant portions of Brookhollow sit adjacent to the Trinity River corridor (ZIP 75207 along Irving Blvd, ZIP 75212 west of the levee system). FEMA National Flood Hazard Layer shows Zone AE (1% annual chance flood) within the leveed Trinity floodway and Zone X (shaded, 0.2% annual chance) on adjacent parcels. West Dallas residential areas (La Bajada, Los Altos in 75212) are outside the regulatory floodway but many parcels sit in the shaded Zone X. · +21d · +15% cost
    Dallas requires 1% annual-chance flood as design standard. ADU in Zone AE must be elevated to or above Base Flood Elevation. Parcels north of Singleton Blvd in West Dallas are generally outside SFHA; Trinity Industrial District parcels south of Continental Ave are more likely affected.
  • airport-noise-zone — Dallas Love Field AICUZ (Air Installations Compatible Use Zones) overlay covers substantial portions of ZIP 75235 and northern 75247 within 2 miles of the Love Field runway. The 65+ DNL contour affects residential parcels in the Northwest Dallas / Love Field-adjacent area. · +10d · +5% cost
    ADU construction in the 65+ DNL contour may require sound-attenuation construction (STC 45+ windows, walls, doors). Not a prohibition — a construction-spec delta typically adding $3K-$8K.

Inherited from the city

These sections come from the city page. Click through to the Dallas ADU research for details.

  • ADU legality
  • legal history
  • size range
  • permitting process & fees
  • permit forms
  • contacts
  • utilities
  • incentives
  • viability
  • resale value impact
  • construction timeline
  • pre-approved plans
  • financing
  • service complexity
Dallas — city ADU rules and incentives

ADU legality: with-restrictions

Cross-listed entry. See dallas-county/dallas.json for the primary record. Dallas's overlay-petition framework is unusual: ADUs are largely opt-in by neighborhood vote rather than allowed citywide.

City cost envelope

$153,500 all-in for a 600 sqft ADU (permit + build). Midpoint scenario.

Permit fee bundle: $3,500 (2026-04).

City viability (selected uses)

Long-term rentalyes
Short-term rentalwith-restrictions
Home officeyes
Relative supportyes

City incentives

  • Texas Homestead Exemption — Owner-occupied primary residence exemption applies to primary structure; ADU added value generally taxed at full rate.
County: no attribution (synthetic bucket)

No county

This city sits in the state's "no county" bucket — its ADU rules derive directly from state law and city ordinance without a county intermediary. No county-level sections apply.

Texas state — ADU law and programs

State ADU law

Texas has NOT enacted a statewide ADU preemption or ADU-by-right statute. Local governments (municipalities and counties) retain full authority over ADU zoning, setbacks, parking, size limits, owner-occupancy, and permitting. Two recent housing-reform bills in the 89th Legislature (2025) touch density and zoning procedure but do NOT preempt ADU-specific local rules: SB 15 (Bettencourt, signed 2025-06-20, effective 2025-09-01) caps minimum single-family lot sizes in cities over 150,000 in counties over 300,000, and HB 24 (signed 2025-06-20, effective 2025-09-01) raises the protest petition threshold for zoning changes. A dedicated ADU-preemption bill — SB 673 (Hughes, 2025) — passed the Texas Senate on 2025-04-10 and was reported favorably by the House Land & Resource Management Committee on 2025-05-08, but died on the General State Calendar when the 89th Regular Session adjourned on 2025-06-02. In the absence of a state ADU statute, homeowners must consult the ordinance of the municipality (or the county's subdivision rules for unincorporated areas) where the lot sits.

State financing programs

Texas does not operate an ADU-specific statewide loan, grant, or forgivable-loan program comparable to California's CalHFA ADU Grant. The Texas Department of Housing and Community Affairs (TDHCA) administers the state's general housing finance programs — My First Texas Home, My Choice Texas Home, Mortgage Credit Certificates, multifamily Housing Tax Credits, the Homeowner Assistance Fund, and Housing Trust Fund awards. None target ADU construction directly, but several can apply to an ADU as part of a primary-residence purchase or refinance when program criteria are met. ADU-specific financing in Texas is primarily local: the City of Austin's ADU Loan Program (administered through Neighborhood Housing and Community Development) and a handful of smaller pilot programs are the most visible, but these sit at the city tier, not the state tier.

Federal (United States) — ADU-relevant rules and programs

Federal ADU law

The United States has no federal statute that directly regulates accessory dwelling unit entitlement or design. Land-use authority over ADUs resides with states and local governments under the traditional police power. Federal engagement is limited to financing (Fannie/Freddie/FHA/VA/USDA), flood insurance (FEMA/NFIP), and discretionary housing programs (HUD), which are recorded in sibling sections of this file.

Federal financing programs

Federal housing-finance agencies and GSEs set nationwide underwriting rules that govern whether an ADU can be financed, appraised, and counted toward mortgage qualifying income. The relevant actors are Fannie Mae, Freddie Mac, FHA (HUD), VA, and USDA Rural Development.

Federal tax credits

There is no ADU-specific federal tax credit. ADUs may incidentally qualify for existing federal energy-efficiency and clean-energy tax credits when the ADU construction includes qualifying measures.

Federal housing programs

HUD administers several discretionary programs that can fund ADU-related activity at the grantee's election, but none is an ADU-specific program.

ZIP Codes

  • 75342
  • 75356

Post Office

  • 5055 Norwood Rd, 75247