ADU rules in Richardson, TX — also called accessory dwelling unit regulations or granny flat ordinances — cover setbacks, owner-occupancy, parking, and permit requirements.
Richardson's Comprehensive Zoning Ordinance (Appendix A) governs accessory dwelling units. ADUs are subject to the same lot coverage, setback, and height limitations as other accessory structures. Residential zoning districts may restrict secondary dwelling units.
Richardson's CZO (Appendix A) governs residential uses including accessory structures. ADUs or secondary dwelling units on single-family lots are subject to all accessory structure requirements: maximum height, setbacks (7 ft side, 3 ft rear/18 in at alley), and total accessory area limits (8% of lot or 40% of principal dwelling). The CZO's residential district regulations define permitted uses. Texas does not have a statewide ADU mandate like California, so local zoning controls apply. Garage conversions to living space require building permits and must meet all residential building code requirements including egress, plumbing, and electrical standards.
Unpermitted ADUs or conversions may result in code enforcement citations, fines up to $2,000, and orders to restore the structure to its original use.
Richardson, TX
Under Sec. 5-9(6), it is unlawful to allow an animal to unreasonably bark, howl, crow, or make other loud noise unprovoked for at least 15 minutes or in spor...
Richardson, TX
Richardson Code Ch. 13, Art. III, Div. 2 prohibits unreasonably loud noise at all hours. Sec. 13-72 makes it unlawful to create noise offensive to ordinary s...
Richardson, TX
Under Sec. 13-75(9), construction noise near residential areas is unrestricted 7 AM to 6 PM weekdays. Before 7 AM, after 6 PM, and on weekends, construction ...
Richardson, TX
Junked vehicles that are wrecked, dismantled, or inoperable without current registration or safety inspection may not be kept in public view. Richardson Code...
Richardson, TX
Richardson regulates commercial vehicle parking in residential areas through its zoning ordinance and Code Enforcement. Oversized commercial vehicles and pro...
Richardson, TX
Richardson does not recognize 'dibs' or reserved parking on public streets. Residents may not block public parking spaces with cones, chairs, or other items,...
Side-by-side rule comparisons with other cities in Dallas County.
See how other cities in Dallas County handle adu rules.
See how Richardson's adu rules rules stack up against other locations.
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