Solar Panel Rules in San Antonio, TX (2026)
Solar panel installation rules, mandate status, HOA restrictions, and permit process for San Antonio, TX.
San Antonio, TX has not confirmed its solar installation mandate status from an official source. Solar panels are a permitted use on residential and commercial properties subject to standard building permit requirements. Property owners in San Antonio must obtain a permit before installing solar panels. HOA restrictions on solar are limited by state law. San Antonio offers permit review for residential solar installations. Below you will find the current solar mandate status, HOA rules, permit process, and any historic district restrictions that apply to solar installations in San Antonio.
Solar Mandate Status
Solar Mandate Status in San Antonio: Whether a solar installation mandate applies in San Antonio has not been confirmed from an official source. Contact the the building department to verify current mandate requirements before beginning your solar installation project.
HOA Restrictions
HOA Restrictions on Solar in San Antonio: State law governs HOA authority to restrict solar installations. Contact the the planning department or your HOA directly for the most current information.
Permit Process
Permit Process in San Antonio: A building permit is required for all solar PV and solar thermal installations. Apply through the the building department. Contact them through their official website for direct contact information. Utility interconnection approval is typically required separately from the building permit.
Frequently Asked Questions
Can I build a secondary dwelling unit (ADU) on my San Antonio property?
Yes. San Antonio allows secondary dwelling units on most residential lots under the Unified Development Code (UDC) Section 35-311. The unit can be up to 1,000 sqft for detached units. No owner-occupancy requirement in most zones. You'll need a building permit from the Development Services Department (DSD). SAWS (San Antonio Water System) connection fees apply for new utility service.
What zone is my San Antonio property in?
Use the San Antonio Zoning page at sanantonio.gov/dsd/zoning to look up your property's zoning designation. The city uses R-1 through R-6 for single-family and RM-4 through RM-6 for multifamily residential zones. You can also contact DSD for zoning verification.
Are short-term rentals (Airbnb) allowed in San Antonio?
Yes, with registration. San Antonio requires STR registration for all rentals of 30 days or fewer. The fee is $200/year. Both owner-occupied and non-owner-occupied STRs are allowed with registration. Hotel Occupancy Tax (HOT) must be collected. Your registration number must appear on all booking platform listings. Noise ordinance and occupancy limits apply.
Does San Antonio have historic district restrictions?
Yes. San Antonio has some of the strongest historic preservation rules in Texas. If your property is in a local historic district (King William, Lavaca, Government Hill, and others) or is a designated landmark, exterior alterations require a Certificate of Appropriateness from the Historic Design and Review Commission (HDRC). The process applies to all exterior changes including additions, new construction, and demolition.
What are the utility providers in San Antonio?
CPS Energy (City Public Service) provides electricity and natural gas for San Antonio. SAWS (San Antonio Water System) provides water and wastewater service. Both are city-owned utilities. CPS Energy handles interconnection for solar installations and offers net metering. New SAWS connections and impact fees apply when adding dwelling units.
Does San Antonio charge impact fees for residential development?
Yes. Unlike Dallas, San Antonio does charge impact fees for residential development. Fees depend on location and the type of utility connection required. SAWS (San Antonio Water System) charges connection fees for new water and wastewater service. Contact San Antonio DSD and SAWS for current fee schedules before planning a project.
Source: San Antonio Building Department — Solar Panel Permits. Last verified April 6, 2026. View source