The purpose of the development plat is to demonstrate conformance with the comprehensive plan, compatibility of the proposed development with this and other applicable City ordinances, and to ensure the safe, orderly, and healthful development of the municipality.
(Ordinance CO12-19-03-14-E1 adopted 3/14/19)
A development plat shall be prepared by a registered professional land surveyor and shall contain or have attached thereto:
(1) 
Name, address and phone numbers of the applicant(s), record owner, and authorized agents (engineer, surveyor, land planner, etc.).
(2) 
Proposed name of the development; date revised and/or prepared; north indicator; scale.
(3) 
Location map.
(4) 
A layout of the entire tract and its relationship to adjacent property, existing development and recorded plats.
(5) 
The owner’s name, deed or plat reference and property lines of property within three hundred (300) feet of the development boundaries, as determined by current tax rolls.
(6) 
Each existing or proposed building, structure, or improvement or proposed modification of the external configuration of the building, structure, or improvement involving a change of the building structure, or improvement.
(7) 
Each easement and right-of-way within or abutting the boundary of the surveyed property.
(8) 
The dimensions of each street, sidewalk, alley, square, park, or other part of the property intended to be dedicated to public use or for the use of purchasers or owners of lots fronting on or adjacent to the street, sidewalk, alley, square, park or other part.
(9) 
Significant drainage features and structures including any regulatory one-hundred-year floodplains.
(10) 
Significant existing features on, or within two hundred (200) feet of the property, such as railroads, roads, buildings, utilities and drainage structures.
(11) 
Location of City limit lines and/or outer border of the City’s extraterritorial jurisdiction, as depicted on the City’s most recent base map, if either such line traverses the development or is contiguous to the development’s boundary.
(12) 
Sufficient data to determine readily and reproduce on the ground the location, bearing and length of every street line, lot line, boundary line, block line and building line whether curved or straight, including the true north point. This shall include the radius, central angle and tangent distance for the property lines of curved streets and curved property lines that are not the boundary of curved streets.
(13) 
The location of all permanent monuments and control points.
(14) 
A letter of intent for parkland dedication.
(15) 
If applicable, a City-approved TIA pursuant to the requirements of Chapter 16 Article 16.04.
(16) 
A statement signed and acknowledged by the owner and any person holding a lien on the property dedicating all streets, alleys, easements, parks and other open spaces to public use or, when the applicant has made provision for perpetual maintenance thereof, to the inhabitants of the subdivision.
(17) 
The signature block for the chair of the Planning and Zoning Commission and secretary of the Planning and Zoning Commission attesting approval of the plat.
(18) 
The signature block of the Director of Development Services, or his designee, attesting to the approval and authorization for recordation of the plat.
(19) 
A certificate bearing the signature and seal of the surveyor who made the survey that the requirements of this Chapter have been complied with.
(20) 
Signature blocks for the engineer and property owner.
(21) 
If the development is not to be served immediately by a water utility, the following is required to be shown on the plat: a restriction prohibiting occupancy of any lot until water satisfactory for human consumption is available from a source on the land or a community source in adequate and sufficient supply for family use and operation of a septic tank and system. Plans and specifications for a private water supply for subdivisions must be submitted by a registered professional engineer and approved by the Texas Commission on Environmental Quality (TCEQ). If private water wells are proposed, lots are required to comply with minimum lot size requirements of the Williamson Cities and County Health District and/or Austin-Travis County Health Department, depending on whose jurisdiction the subdivision falls within.
(22) 
If the development is not to be served immediately by a sewage collecting system connected to a treatment plant or to a public sewer system, disposal of domestic sewage through an on-site sewage disposal facility is required to be approved by the County Health Officer. The following restriction is required to be placed on the plat: occupancy of any lot is prohibited until an on-site sewage facility has been installed in accordance with the rules and regulations of the TCEQ, the Williamson County and Cities Health District and/or the Austin-Travis County Health Department and has been inspected and approved by the County Health Officer.
(23) 
The plat shall indicate the route of sidewalks in compliance with the City’s adopted street standards.
(24) 
Tree survey and tree preservation plan indicating all protected trees as per the requirements of section 12.12.022.
(25) 
One (1) copy of the drainage plan.
(26) 
Surveyor’s certified perimeter field notes. Beginning point is to be an original corner of the original survey of which the plat is a part. At least one corner of a subdivision shall be tied by course and distance to a corner of the original survey of which it is a part or to a previously platted lot. The plat shall include a note describing the corner tie, and if the subdivision is located within one mile of a global positioning system (GPS) monument accepted by the City, the location, coordinates and elevation of a 5/8-inch iron rod set in concrete at two locations on the boundary of the subdivision shall be tied horizontally and vertically to the GPS monument.
(27) 
A minimum of two (2) survey ties are required across all right-of-way and at all changes in the width of right-of-way.
(28) 
All information necessary to demonstrate compliance with driveway and/or street intersection spacing rules of section 12.12.015 and the Criteria Manual.
(29) 
For all developments for which a landscape plan is required separately pursuant to Article 14.07, as amended, or as part of the site development permit application, a grading and tree protection plan shall be submitted with the site development plans. The plan shall be prepared so as to maximize, as much as is practicable, the number of existing trees six (6) caliper inches and larger on the site that will be retained with the development.
(30) 
Additional information necessary to demonstrate compliance with this Chapter.
(31) 
All other application requirements specified in the development plat application/checklist.
(Ordinance CO12-19-03-14-E1 adopted 3/14/19)
The procedure for review and approval of a development plat shall follow the procedure for final plats, except that:
(1) 
The development plat, prepared by a surveyor, and engineer if required, and bearing their seals shall be submitted to the Planning and Zoning Commission for approval before recordation of the plat.
(2) 
Legible prints, as indicated on the development plat application form shall be submitted along with the following:
(A) 
Completed application form and the payment of all required fees.
(B) 
Certification from all applicable taxing authorities that all taxes due on the property have been paid.
(Ordinance CO36-18-08-09-E2 adopted 8/9/18)
The approval process for a development plat shall be the same as the approval of a final plat.
(Ordinance CO36-18-08-09-E2 adopted 8/9/18)
The revision process for a development plat shall be the same as the revision process for a final plat in section 12.06.008.
(Ordinance CO36-18-08-09-E2 adopted 8/9/18)
The recordation procedures of a development plat shall be the same as the procedures for a final plat in section 12.06.009.
(Ordinance CO36-18-08-09-E2 adopted 8/9/18)
Notwithstanding the approval of any development plat by the Planning and Zoning Commission, the applicant and the engineer that prepares and submits such plats shall be and remain responsible for the adequacy of the design and nothing in this Chapter shall be deemed or construed to relieve or waive the responsibility of the applicant or his/her engineer for or with respect to any plat submitted.
(Ordinance CO36-18-08-09-E2 adopted 8/9/18)