A Keller homeowner called us about building a guest house on the back of their property — a private space for aging parents that allowed independence while keeping family close. The lot had the space. The municipality allowed ADUs(Additional Dwelling Units). The challenge was integrating the new structure architecturally with the existing home and navigating the permitting process for an accessory dwelling unit, which is handled differently than a standard room addition in most DFW municipalities.
We designed and built a 900 square foot detached ADU with a full kitchen, bathroom, bedroom, and living area — architecturally matched to the main home, properly permitted, and completed in four months. Their parents moved in on schedule. The property value increased substantially. And a problem that had been worrying the family for two years was resolved.
Accessory dwelling units are one of the fastest-growing residential construction categories in DFW — driven by multigenerational living needs, investment income opportunities, and municipalities throughout North Texas that have expanded ADU permitting to address housing demand. Fast General Contracting builds ADUs throughout the DFW metroplex — from detached guest houses through garage conversions and basement apartments.
Fast General Contracting builds accessory dwelling units of every type throughout the DFW metroplex — managing complete design, permitting, and construction under single-source accountability.
Fully detached accessory dwelling units with independent living facilities — separate entrance, full kitchen, bathroom, and living space throughout Fort Worth and DFW.
Complete garage conversion to living space — insulation, HVAC, plumbing, electrical, and full interior finish for ADU use throughout DFW.
Above-garage apartment construction — second story addition over existing or new garage with full living facilities throughout DFW.
Basement conversion to fully permitted accessory dwelling unit with egress windows, proper ceiling height, and complete living facilities throughout DFW.
Attached in-law suite additions with private entrance, kitchenette, bathroom, and living area integrated into existing home throughout Fort Worth and DFW.
Pool house and casita construction with living facilities — guest accommodation, home office, or flexible use space throughout DFW luxury properties.
ADU permitting in DFW varies significantly by municipality — what is allowed in Fort Worth may not be permitted in Keller, and what Frisco allows may differ from McKinney. Fast General Contracting has navigated ADU permitting throughout DFW municipalities and understands the specific regulations, setback requirements, size limitations, owner-occupancy requirements, and utility connection standards that apply in each community.
We manage the complete ADU permitting process — zoning analysis, ADU eligibility confirmation, utility availability assessment, building permit application, plan review, inspections, and certificate of occupancy. You do not have to become an expert in your municipality’s ADU ordinance. We already are.
ADU regulations throughout DFW continue to evolve as municipalities respond to housing demand. Fort Worth, Dallas, and several surrounding cities have expanded ADU allowances in recent years. Fast General Contracting stays current with ADU ordinance changes throughout the metroplex — ensuring your project is designed and permitted to comply with current regulations from the start.
For homeowners considering an ADU as a rental income investment, the DFW rental market provides strong fundamentals. Long-term rental rates for well-constructed ADUs in established DFW neighborhoods range from $1,200 to $2,500 per month depending on size, location, and finish level — delivering meaningful income that offsets or eliminates the financing cost of the ADU construction.
Short-term rental platforms have also created strong ADU income opportunities in DFW communities near employment centers, entertainment districts, and major medical facilities. Fast General Contracting builds ADUs specifically designed for short-term rental use — with durable finish materials, efficient layouts, and amenity packages that maximize guest experience and rental income potential.
Fast General Contracting provides free ADU feasibility assessments throughout DFW — evaluating your lot, confirming ADU eligibility with your municipality, and giving you an accurate construction cost and timeline before you commit to anything.
Ready to discuss your project? Call us or request a consultation online. We respond to every inquiry within one business day.
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