ADU Rules in El Paso, TX (2026)
ADU rules, permit requirements, size limits, and fees for El Paso, TX. Source-cited from official municipal code.
Yes, ADUs are allowed in El Paso, TX.
El Paso, TX permits accessory dwelling units (ADUs) on residential properties. ADUs — also called granny flats, in-law units, backyard cottages, or secondary suites — are secondary housing units on a single-family or multifamily lot. State and local law governs the approval process. In El Paso, the El Paso Development Services Department handles ADU permit applications. Below you will find the current size limits, setbacks, fees, and timeline for building an ADU in El Paso.
ADU Size Limits
ADU Size Limits in El Paso: Detached ADU: up to 800 sq ft (max height: 20 feet). Attached ADU: Up to 50% of primary dwelling floor area. El Paso Municipal Code Chapter 20.04. El Paso allows accessory dwelling units in single-family residential zones. The city does not use the California JADU concept. Detached ADUs are limited to 800 sqft in R-1 zones. Check zone-specific standards for R-2 and above.
| Type | Max Size | Max Height |
|---|---|---|
| Detached ADU | 800 sq ft | 20 feet |
| Attached ADU | Up to 50% of primary dwelling floor area | Per zone height limit |
Permit Fees
ADU Permit Fees in El Paso: Plan check fee: $150–$800. Building permit fee: Based on construction value — typically $500–$2,500. Impact fees: None. School fees: None or N/A. Total estimated permit cost: $800–$4,000 total fees. Texas cities generally have lower impact fees than California cities. El Paso does not impose significant impact fees for residential ADU construction. Contact El Paso Development Services for current fee schedule.
| Fee Type | Amount |
|---|---|
| Plan Check | $150–$800 |
| Building Permit | Based on construction value — typically $500–$2,500 |
| Impact Fees | None |
| School Fees | None |
| Total Estimate | $800–$4,000 total fees |
Permit Timeline
El Paso ADU Permit Timeline: El Paso Development Services: plan review typically 3-6 weeks. Construction 4-8 months. El Paso has an online permit portal for minor projects. Apply through the El Paso Development Services Department online permit portal. Phone: (915) 212-0000.
Setback Requirements
ADU Setback Requirements in El Paso: Front setback: follows zone standard. Side setback: 3 feet. Rear setback: 5 feet. Detached ADUs in El Paso require minimum 5 ft rear setback and 3 ft side setback. Front yard placement not permitted for accessory structures. El Paso Municipal Code Chapter 20.04 Supplemental Regulations.
Parking Requirements
Parking Requirements: 1 parking space per ADU required. El Paso is a car-dependent city — parking requirements reflect the limited transit network outside downtown. Fort Bliss military housing areas may have additional parking requirements.
Restrictions & Requirements
- ADU must be on same lot as primary residence
- Detached ADU must be clearly subordinate to primary dwelling
- ADU cannot be sold separately from the primary lot
- Must comply with El Paso Zoning Ordinance setback and coverage standards
- Maximum lot coverage limits apply — ADU footprint counts against coverage maximum
How Many ADUs Are Allowed?
Number of ADUs Allowed in El Paso: Single-family lots: 1 ADU per single-family lot. Multifamily properties: Subject to zone density provisions. El Paso allows one ADU per single-family residential lot. Texas has no state law mandating a higher number of ADUs per lot.
Single-Family Lots
1 ADU per single-family lot
Multifamily Properties
Subject to zone density provisions
Historic District Considerations
Historic District Requirements: El Paso has 5 historic districts where additional design review may be required for ADU construction. Design review approval is required before obtaining a building permit for properties in historic overlay zones. El Paso has several locally-designated historic neighborhoods including Kern Place, Sunset Heights, Manhattan Heights, and the Downtown Historic District. El Paso's historic downtown includes Mission Trail properties, the El Paso Mission (Ysleta Mission, dating to 1682, one of the oldest continually operating missions in the US), and significant Spanish Colonial and Mission Revival architecture. Historic district properties may require a Certificate of Appropriateness from the El Paso Historic Landmark Commission before exterior changes. Look up historic district boundaries at: https://www.elpasotexas.gov/planning/historic-preservation
Frequently Asked Questions
Can I build an ADU in El Paso?
Yes. El Paso, TX allows accessory dwelling units. On a single-family lot you can build 1 ADU per single-family lot.
How big can an ADU be in El Paso?
The maximum size for a detached ADU in El Paso is 800 square feet.
How long does it take to get an ADU permit in El Paso?
The typical ADU permit timeline in El Paso is El Paso Development Services: plan review typically 3-6 weeks. Construction 4-8 months. El Paso has an online permit portal for minor projects.. Total estimated permit fees are $800–$4,000 total fees.
Do I need extra parking for an ADU in El Paso?
No, El Paso does not require additional parking for ADUs.
Do I have to live on-site to have an ADU in El Paso?
No, owner-occupancy is not required for ADUs in El Paso.
Source: El Paso Municipal Code Chapter 20.04 — Zoning Ordinance. Last verified April 6, 2026. View source