Lots.

Austin City Code tit. 30, ch. 30-2, art. 3, div. 3

in effect

Austin City Code § 30-2-171 ACCESS TO LOTS.

§ 30-2-171 - ACCESS TO LOTS. (A) Except as provided in Section 30-2-159 (Private Streets) and Subsection (B), each lot in a subdivision shall abut a dedicated public street. (B) The platting board may approve a variance to the requirement of Subsection (A), including approval of a subdivision with private access easements, if development of the subdivision with the variance places a minimal burden on the existing road infrastructure and all other requirements for a variance are met. (C) Chapter 30-3, Article 3 (Access) governs access to a lot: (1) on a roadway designated as a major arterial, freeway, parkway, expressway, or toll road in the transportation plan; or (2) on a hill country roadway. Source: City Code Section 25-4-171; County Code Section 82.202(d); Ord. 031211-11; Ord. 031211-42.

Austin City Code § 30-2-172 THROUGH LOTS IN A SINGLE-FAMILY SUBDIVISION.

§ 30-2-172 - THROUGH LOTS IN A SINGLE-FAMILY SUBDIVISION. A through lot in a single-family residential subdivision is permitted if access to one of the abutting streets is prohibited. If one of the streets abutting a through lot is an arterial, access to the arterial is prohibited unless the single office determines that topography or property size justify access to the arterial. Source: City Code Section 25-4-172; County Code Section 82.202(m); Ord. 031211-11; Ord. 031211-42.

Austin City Code § 30-2-173 LOT ARRANGEMENT.

§ 30-2-173 - LOT ARRANGEMENT. The side lines of lots must be approximately at right angles to straight street lines or radial to curved street lines. An arrangement placing adjacent lots at right angles to each other may be disallowed by the single office. Source: City Code Section 25-4-173; Ord. 031211-11; Ord. 031211-42.

Austin City Code § 30-2-174 LOT SIZE.

§ 30-2-174 - LOT SIZE. (A) In an area annexed by the city for limited purposes, the site development regulations for the zoning district in which a lot is located determine minimum lot area and minimum lot width. (B) Outside a limited-purpose area, residential lot requirements are as follows: (1) minimum lot area is: (a) in a subdivision served by a public wastewater system or central wastewater disposal unit: (i) 5,750 square feet; or (ii) 6,900 square feet for a corner lot; or (b) in a subdivision with private on-site sewage facilities, as determined by the authorized agent in accordance with Texas Administrative Code Title 30, Chapter 285 (On-Site Sewage Facilities); (2) minimum lot width is: (a) 50 feet for an interior lot; (b) 60 feet for a corner lot; or (c) 33 feet for a lot on a cul-de-sac or curved street; and (3) minimum lot frontage, including a flag lot, is: (a) 15 feet; or (b) if a culvert is required for a driveway approach, 30 feet. (C) The single office may reduce the minimum lot frontage prescribed by Subsection (B) if the single office determines that access to the lot is restricted to a joint use driveway. Source: City Code Section 25-4-174; County Code Sections 82.202(o) and 82.302(d)(10); Ord. 031211-11; Ord. 031211-42.

Austin City Code § 30-2-175 LOTS ON STREETS WITHOUT CURB AND GUTTER.

§ 30-2-175 - LOTS ON STREETS WITHOUT CURB AND GUTTER. (A) A lot in a subdivision designed with streets without curb and gutter must be one-half acre or more in size and have 100 feet or more of street frontage. (B) Land designated in a preliminary plan as dedicated for open space or public right-of-way may not be used to calculate a lot size for a lot described in Subsection (A). Source: City Code Section 25-6-204; County Code Section 82.302(d)(10); Ord. 031211-11; Ord. 031211-42.

Austin City Code § 30-2-176 FLAG LOTS.

§ 30-2-176 - FLAG LOTS. (A) A flag lot may only be approved in accordance with the requirements of this subsection. (1) Flag lot designs may be used where no more than two dwelling units utilize a shared driveway. (2) For developments proposing more than two dwelling units, the single office may grant a waiver to allow flag lots if: (a) the single office finds that the subdivision: (i) has provided accessibility for emergency responders and associated vehicular traffic; (ii) has adequate room for required utilities; (iii) enhances environmental protection; (iv) is otherwise compatible with the surrounding neighborhood; and (b) the applicant provides a copy of any existing private deed restrictions for informational purposes. (B) The minimum width of a flag lot is: (1) 20 feet; or (2) 15 feet if: (a) two or more contiguous lots share a common driveway and sufficient area is available outside the drive on each lot for utility installation; or (b) the applicant can demonstrate access through an alternative route. (C) For a subdivision utilizing a flag lot design, any proposed driveways must be designed with adequate space for all required utilities. A proposed driveway must also: (1) comply with the Utilities Criteria Manual, if applicable; and (2) comply with the Plumbing Code. (D) All addresses utilizing a flag lot design must be displayed at their closest point of access to a public street for emergency responders. Source: Ord. No. 20230831-142, Pt. 34, 9-1-23.

Source: City of Austin, City Code and City Charter (Municode Library, library.municode.com)URL: https://library.municode.com/tx/austin/codes/code_of_ordinances?nodeId=TIT30AUTRCOSURE_CH30-2SURE_ART3PLRE_DIV3LOFetched: 10/27/2026