ADUs Decisions in San Antonio

An Accessory Dwelling Unit (ADU) is a secondary housing unit located on the same parcel as a primary single-family residence. ADUs go by many names - granny flats, in-law suites, backyard cottages, garage apartments, or casitas - but they all share the common characteristic of being smaller, subordinate residential units that share a lot with the main house. ZoneWire tracks adus activity across San Antonio, TX public meetings.

ZoneWire monitors San Antonio, TX planning and council meetings, transcribes them, and flags adus activity. As of the latest update we have analyzed 15 meetings and detected 145 adus mentions.

Tracking adus in San Antonio surfaces zoning and development signals early, so developers, investors, and brokers can evaluate parcels and approvals before they reach the broader market.

Zoning in the City of San Antonio is governed by the Unified Development Code (UDC), which is Chapter 35 of the City Code. It is administered by the City's Development Services Department through its Zoning Section, which can be reached at 210-207-1111. Permitted uses in each district are set out in the UDC (see Section 35-311), and the full code is published on the Municode Library.

The UDC establishes a range of base zoning districts. Residential districts run from lower to higher density, including RP (Resource Protection), RE (Residential Estate), the single-family R districts (R-20, R-6, R-5, R-4, R-3, R-2, R-1), the Residential Mixed districts (RM-6, RM-5, RM-4), and multi-family districts (MF-18, MF-25, MF-33, MF-40, MF-50, MF-65). Nonresidential districts include office (O-1, O-1.5, O-2), commercial (NC Neighborhood Commercial, C-1 Light Commercial, C-2 Commercial, C-3 General Commercial), the Downtown 'D' district, and industrial districts (L Light Industrial, I-1 General Industrial, I-2 Heavy Industrial).

An applicant files a Master Plan Amendment and/or Zoning application with the Development Services Department by a published application deadline. Cases requiring a plan amendment go to the Planning Commission, and zoning change requests are heard by the Zoning Commission at a public hearing before a final decision by City Council. State law requires publication of a notice of the public hearing in an official or general-circulation newspaper under Texas Local Government Code Section 211.006(a). For details on the process, staff can be reached at 207-7720.

Zoning Commission public hearings are held at 1:00 p.m. in the Board Room of the Cliff Morton Development and Business Services Center at 1901 South Alamo Street, unless a meeting is held virtually. Planning Commission public hearings are held at 2:00 p.m. at the same location. Dates, times, and locations are subject to change, and agendas are posted on the City's Legistar calendar.

In addition to base districts, the UDC provides overlay districts (Section 35-330) that add regulations on top of the underlying zoning. These include the AHOD Airport Hazard Overlay District, the ERZD Edwards Recharge Zone District (which restricts certain uses over the Edwards Aquifer Recharge Zone), Historic Districts and Historic Landmark (HL) districts regulated by the Office of Historic Preservation, Military Airport Overlay Zones (MAOZ), Neighborhood Conservation Districts (NCD), Viewshed Protection (VP) districts, the Mission Protection Overlay Districts (MPOD), and River Improvement Overlay (RIO) districts.

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