Home Addition in Houston TX — Room Additions, ADUs & More
Houston Build Crew builds room additions, master suite additions, garage apartments (ADUs), and other custom additions across Greater Houston. We handle permits, inspections, and all construction from foundation to final paint. Free on-site estimates. Call (281) 905-2414.
Home Additions in Houston TX — Room Additions, ADUs & More
Adding square footage is one of the most impactful ways to increase the value and livability of your Houston home. Rather than selling and buying larger in a tight Houston market, a well-planned home addition gives you the space you need at your current address — near your schools, community, and neighbors you know.
Houston Build Crew builds room additions, master suite additions, family room expansions, garage apartments (ADUs), and other custom additions across the Greater Houston area. We handle the entire process — from City of Houston permit application through final inspection and CO (certificate of occupancy).
Our team understands Houston's building code, local setback requirements, and the foundation considerations unique to Houston's expansive clay soils. Whether your project needs a slab-on-grade, pier-and-beam, or post-tension foundation match, we assess what is right for your addition.
Types of Home Additions We Build in Houston
- Master bedroom and bathroom additions
- Family room or living room additions
- Kitchen expansions
- Sunrooms and screened-in porch conversions
- Garage conversions to living space
- Detached garage apartments (ADUs)
- Second-story additions
- In-law suites and guest quarters
- Home office additions
- Covered patio enclosures
Home Addition Cost in Houston TX
Home addition costs in Houston TX depend on size, foundation type, finish level, and whether HVAC, electrical, and plumbing need to be extended. General ranges:
- Small room addition (200-400 sq ft): $25,000–$60,000 — Bedroom, office, or bonus room with foundation, framing, roofing, insulation, drywall, flooring, and paint.
- Master suite addition (400-600 sq ft): $50,000–$100,000 — Master bedroom plus full bathroom, walk-in closet, with upgraded finishes.
- Garage apartment / ADU: $60,000–$120,000 — Detached or above-garage unit with full kitchen, bath, HVAC, and separate entrance.
- Second-story addition: $80,000–$200,000+ — Complex structural work including reinforcing existing foundation and load paths.
Call (281) 905-2414 for a free on-site estimate. We will walk your property, review lot restrictions and setbacks, and provide a detailed written quote.
How Your Houston Home Addition Works
Site Assessment
We visit your property, review setback requirements, assess existing foundation and structure, and discuss your vision and budget.
Design & Plans
We develop construction plans, coordinate with a structural engineer if needed, and prepare documents for City of Houston permit submission.
Permits & Inspections
We submit permit applications, track approvals, and schedule all required City of Houston inspections throughout the project.
Construction & CO
Our crew completes foundation, framing, roofing, rough-ins, and all finish work in sequence. We obtain the Certificate of Occupancy and do a final walkthrough with you.