- (713) 551-4090
- Houston’s Trusted Construction Experts
ADU Construction Contractors in Houston, TX for Turning Backyards into Rental Income or Extra Living Space
We design and build accessory dwelling units that work around your property’s existing footprint. Our ADU construction adds a separate living space in your backyard for rental income, aging parents, adult children, or a private home office. A detached guest house, garage conversion, or tiny home turns unused outdoor space into valuable square footage.
- Houston Builder Pro
The #1 ADU Construction Company in Houston, TX
Building an accessory dwelling unit requires expertise in several areas that standard home remodeling cannot provide.
- Separate Utility Connections
- Proper Setback Requirements
- Foundation type matched to soil conditions
- Layout designed for the end use
- Energy-efficient systems specified for Houston's climate
- Separate Address and 911 Registration
- Fire Separation Requirements
- Accessibility Considerations
We are an ADU construction company in Houston, TX, that understands the difference between a home addition and an accessory dwelling unit.
ADU Construction Services in Houston, TX
Professional ADU Builders in Houston, TX for Rental Units and Luxury Home Upgrades
We build an ADU in several configurations depending on your property, budget, and needs. Our team handles every part of the ADU project from design through final inspection. Includes foundation, framing, roofing, siding, windows, doors, insulation, drywall, flooring, paint, bathroom, kitchenette, HVAC, electrical, and plumbing.
Detached Guest House
A standalone structure in the backyard. Built with a private entrance, bathroom, kitchenette, and bedroom area. It has everything someone needs to live independently.
Garage Conversion
Turn an attached or detached garage into a living space. Costs less than new construction because the structure already exists.
Tiny Home ADU
A small footprint dwelling unit under 500 square feet. Has bedroom loft, bathroom, kitchenette, and a living area. Works well for rentals because maintenance costs stay low, and rent per square foot is high.
Law Suite
A ground-floor addition attached to the main house, but with a separate entrance. Has a private bathroom and a kitchenette. Law suites work well for aging parents who need to stay close but want their own space.
Above Garage ADU
Space above a detached garage keeps the garage functional while adding living space above. Has stairs leading up and includes a bathroom, a kitchenette, a bedroom, and a living area in the same footprint.
Backyard Office with Bathroom
A hybrid between an ADU and a home office. Contains a private workspace with a bathroom and a small kitchenette. Permitting is simpler because the unit lacks sleeping quarters. Perfect for remote work or a private studio.
ADU Construction Cost in Houston, TX
Pricing depends on size, configuration, utility connections, and finish level.
ADU Type
Size
Cost Range
Garage conversion
400-600 sq ft
$40,000 - $70,000
Backyard office with bathroom
200-300 sq ft
$35,000 - $55,000
Tiny home ADU
300-500 sq ft
$60,000 - $100,000
Detached guest house (basic)
500-700 sq ft
$80,000 - $120,000
Detached guest house (full)
700-1,000 sq ft
$120,000 - $180,000
Law suite (attached)
400-600 sq ft
$70,000 - $110,000
Above garage ADU
500-700 sq ft
$90,000 - $140,000
ADU construction costs in Houston, TX, with full home remodeling in Houston, TX, and room addition in Houston, TX, are higher because the ADU requires separate systems. A detached ADU needs its own foundation, utility connections, and site work. A garage conversion costs less because the structure already exists.
Get the exact ADU construction cost for your property here.
Garage To ADU Conversion With Modern Finishes
Turn your existing garage into a fully functional ADU with Houston Builder Pro. Garage conversions in Houston are a cost-effective way to create additional living space without expanding your footprint. We handle structural upgrades, insulation, plumbing, electrical, and interior finishes to create a comfortable, code-approved unit.
- Structural framing upgrades
- Plumbing and electrical installation
- HVAC ventilation and insulation work
- Drywall, flooring, and paint finishes
Timeline
How Long Does It Take to Build an ADU in Houston?
Timelines depend on size, configuration, and the permitting process
ADU Type
Timeline
Garage conversion
6-8 weeks
Backyard office with bathroom
8-10 weeks
Tiny home ADU
10-14 weeks
Detached guest house (basic)
12-16 weeks
Detached guest house (full)
16-20 weeks
Law suite (attached)
10-14 weeks
Above garage ADU
14-18 weeks
The permitting process takes 4-8 weeks before construction begins. We handle all filings, setback reviews, utility connection approvals, building code compliance, plan checks, and schedule site work to begin as soon as permits clear.
Best ADU construction companies in Houston for backyard living space and expansion understand that an ADU is a small home, not a large shed. We build to residential code.
Houston Builder Pro
Ready to Build Your ADU in Houston?
Add more outdoor living space in Houston, TX, increase property value, and create rental income with a professionally built ADU. Contact Houston Builder Pro today for a consultation and get a clear plan, timeline, and estimate for your project.
Why Homeowners Choose Us for Their ADU Project
- Professional ADU builders in Houston, TX, for rental units and luxury home upgrades
- Full ADU construction company in Houston, TX, for custom home additions and remodeling
- Clear the ADU construction cost in Houston, TX, before work begins
- Experience with garage conversions, guest house builds, and attached units
- Complete handling of the permitting process and building codes
- Design and build under one contractor from start to finish
Accessory Dwelling Unit Specialists, Garage Conversion Experts, and Guest House Builders, All at One Place for Your ADU Project
An accessory dwelling unit transforms unused outdoor space into a functional living area. Separate entrance. Private bathroom. Small kitchen. A place where someone can live independently while staying close to family.
We handle ADU construction in Houston for homeowners who want to turn empty backyards into income-producing rental units, private guest houses, or multi-generational living spaces without moving or buying a larger property.
Best for homeowners who want one contractor to handle design, permitting, foundation work, utility connections, and finishes all in one place. Everything about your ADU project is handled by the expert and affordable ADU construction company in Houston.
Get a Fixed Price on Your ADU Construction
You have an empty backyard and need space for a parent, a renter, or a home office. The solution is right outside your back door. Tell us how you want to use the space. Rental income. Aging parent. Adult child. Private office. We will survey your property, check setbacks, review utility access, and give you a fixed price on an ADU that works exactly how you want it.
Call us today. Or fill out the form below.
APPOINTMENT
Reliable Construction Services in Houston, TX
Call Houston Builder Pro today at your convenience and from design to execution, get it planned now.
713-551-4090
info@houstonbuilderpro.com
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2200 North Loop West, Suite 105, Houston, TX 77018
Get My Free ADU Construction Estimate
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What Our Customer Say
- Houston Builder Pro
Plumbing, Electrical, HVAC ADU Installation Packages
Houston Builder Pro installs complete mechanical systems for your ADU, including plumbing, electrical, and HVAC. We make sure your ADU functions like a full home with reliable water supply, safe wiring, and comfortable climate control. Our licensed and experienced team handles rough-in to final fixtures, ensuring everything meets Houston code requirements.
- Full plumbing rough-in and finish
- Water heater installation options
- Electrical wiring and panel upgrades
- Lighting and outlet installation
- HVAC mini-split or central options
- Houston Builder Pro
Permits, Code Compliance, And Inspection Support
Permits and code requirements can delay ADU projects if not handled correctly. Houston Builder Pro helps streamline the process by supporting permitting, code compliance, and inspection preparation. We work with local guidelines and ensure your ADU construction meets structural, electrical, plumbing, and safety standards. Our team keeps your project organized with clear documentation and realistic scheduling so you avoid costly rework. Whether it’s a new ADU build or conversion, we make sure your project is completed legally, safely, and approved properly.
- Permit guidance and documentation
- Code-compliant construction planning
- Inspection scheduling coordination
- Safety and zoning requirement support
- Structural and mechanical compliance
ADU Construction Across Greater Houston Near You
We are ADU construction contractors serving homeowners in
Houston, TX
Detached guest houses, garage conversions, tiny home ADUs, law suites
Sugar Land, TX
Backyard office with bathroom, above garage ADUs, rental units
Tomball, TX
Luxury guest houses, rental property ADUs, custom designs
Spring, TX
Tiny home ADUs, backyard offices, aging parent suites
Katy, TX
Garage conversions, detached guest houses, multi-generational living spaces
Missouri City, TX
Garage conversions, law suites, detached ADUs
Not on the list? Call anyway. We serve most of the Greater Houston area.
Frequently Asked Questions (FAQs)
Check four things. ADU construction experience, permitting knowledge, and whether they handle all filings and utility coordination. The contractor should manage water, sewer, electric, and gas connections. Rental market understanding is also important if you plan to rent the unit; the contractor should design for durability and tenant appeal. Houston Builder Pro passes every test.
A garage conversion can cost you between $40,000-$70,000. A tiny home ADU construction can cost you between $60,000-$100,000. A detached guest house build can cost you around $80,000-$180,000, depending on size and finishes. A law suite attached to the main house can cost you $70,000-$110,000 in construction. An above-garage ADU can cost you between $90,000-$140,000. We give a fixed price after surveying your property.
The permitting process takes 4-8 weeks. Garage conversion construction takes 6-8 weeks. Tiny home ADU construction takes 10-14 weeks. Detached guest house construction takes 12-20 weeks, depending on size. Timelines assume no weather delays or permit holdups.
Some do handle it, but some do not. We, the Houston Builder Pro, handle it with setback reviews, utility connection approvals, building codes compliance, and plan checks. We file everything with the City of Houston and surrounding municipalities. Unpermitted ADUs create legal problems when you sell your home. We never skip permits.
Yes. An ADU in Houston rents for $1,200 to $2,500 per month, depending on size and location. Rental income covers the construction cost over time. An ADU also adds square footage to your property value. For multi-generational families, an ADU keeps loved ones close while giving them independence. The financial and personal returns make ADU construction worthwhile.
