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Dallas, TX Building Setbacks & Zoning: Lot Coverage Limits (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Governing section
Dallas Development Code Sec. 51A-4.407
Institutional building cap
60% in single family, duplex, MF-1/2/3(A), MH(A) districts
Child/adult care facilities
Limited to residential-structure coverage percentage
Parking rule
Aboveground parking structures count; surface lots do not
PD districts
Governed by their own PD ordinance, not Sec. 51A-4.407
Exact figures by district
Charted (not formally adopted) in Sec. 51A-4.410
Penalty
$200-$2,000 fine per day, Sec. 51A-1.103

Summary

Dallas Development Code Sec. 51A-4.407 sets a hard ceiling on how much of a lot a building can cover, layered on top of the front, side, and rear yard setbacks in the same chapter. Institutional buildings in single-family, duplex, and several multifamily districts top out at 60 percent; every other use follows the percentage fixed in its own district regulations.

(a) General provisions. (1) Except as provided in Paragraph (2), in single family, duplex, townhouse, MF-1(A), MF-1(SAH), MF-2(A), MF-2(SAH), MF-3(A), MH(A), NO(A), and NS(A) districts, institutional buildings may cover a maximum of 60 percent of the lot. (2) In single family and MH(A) districts, structures used solely for child or adult care facility uses are limited to the maximum lot coverage applicable to residential structures in each district. (3) The maximum lot coverage requirements in a planned development district are controlled by the planned development district regulations. ... (c) Schedule of maximum lot coverage. (1) Except as otherwise provided in this section, a person shall not erect, alter, or convert any structure or part of a structure to cover a greater percentage of a lot than is allowed in the district regulations (Divisions 51A-4.100 et seq.). A schedule of maximum lot coverage is contained in Section 51A-4.410.

Source: Dallas City Code Sec. 51A-4.407 – Maximum Lot CoverageView official code

Full Breakdown

407(a)(1) caps institutional buildings in single family, duplex, townhouse, MF-1(A), MF-1(SAH), MF-2(A), MF-2(SAH), MF-3(A), MH(A), NO(A), and NS(A) districts at 60 percent lot coverage. Paragraph (a)(2) applies that same residential-structure percentage to child- or adult-care facility buildings in single family and MH(A) districts, rather than letting them use the higher institutional number. Paragraph (a)(3) removes planned development districts from the general schedule entirely: their lot coverage maximum is set instead by that PD's own district regulations. 410. 407 supplies the enforcement hook and the 60 percent institutional ceiling, not a single number that applies everywhere.

The section works together with the front, side, and rear yard setbacks in the same division (Secs. 403) and the minimum lot area and width requirements (Secs. 406), all read together to determine how much of a given lot can legally be built out.

Violations & Fines

Building or altering a structure that exceeds its district's lot coverage cap violates Chapter 51A of the Dallas Development Code. Under Sec. 51A-1.103, a knowing violation is a separate offense for each day it continues, punishable by a fine of not less than $200 and not more than $2,000, doubled for a second conviction and trebled for a third within 24 months. The city can also pursue civil enforcement or order utility disconnection until the noncompliant coverage is corrected or a variance is obtained from the board of adjustment.

Frequently Asked Questions

What is the maximum lot coverage for a house in Dallas?
It depends on your base zoning district. Sec. 51A-4.407 does not set one citywide number; each district's own section fixes the percentage, and the general text only caps institutional buildings in listed residential districts at 60 percent. Homeowners have to check the specific district chapter under Divisions 51A-4.100 et seq. for their own lot's cap.
Does a garage or driveway count toward lot coverage in Dallas?
Yes for aboveground structures, no for most surface parking. Sec. 51A-4.407(c) treats aboveground parking structures as part of the lot coverage calculation, while surface parking lots and underground parking structures are excluded in the districts where that distinction applies, so a detached garage counts but a paved driveway generally does not.
Can Dallas grant an exception to the lot coverage limit?
A planned development district can set its own coverage cap under Sec. 51A-4.407(a)(3), overriding the general schedule entirely, and specific structures like child or adult care facilities are pegged to the residential percentage rather than the higher institutional number. Absent a PD ordinance, the base zoning district's own percentage in Divisions 51A-4.100 et seq. controls.

Sources & Official References

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