What is 369 Development?

369 Development showcases custom homes, renovations, and high-end remodeling with 3+ project pages, testimonials, and a project estimator for clients.

Do I need permits for a home addition?

Yes. We handle all permitting, architectural plans, and inspections as part of our addition services.

How do you match the addition to the existing home?

We carefully match siding, roofline, trim, and interior finishes so the addition feels like an original part of the home.

How long does a room addition take?

A standard room addition typically takes 6–12 weeks. Second-story additions or larger projects may take 3–6 months.

Will an addition increase my home value?

Yes. Well-executed additions typically add significant value and can return 50–80% or more at resale depending on type and market.

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Additions & Expansions

Expand your living space with seamlessly integrated additions that match your home's character.

Trusted & Accredited

BBB Accredited Business

Licensed & Insured

NAHB Member

Texas Association of Builders

OSHA Safety Compliant

EPA Lead-Safe Certified

What We Offer

An addition is the most cost-effective way to add real square footage to a home you don't want to leave. 369 Builders designs and builds additions that tie structurally and aesthetically into the existing house — engineering, foundation, framing, and exterior finishes matched so the new space reads as original, all under one contract.

Primary-suite & bedroom additions
Second-story & pop-top additions
Garage & accessory conversions
Sunroom & three-season rooms
In-law & multi-gen suites
Structural engineering coordination
Foundation & structural tie-in
Permitting & inspection management

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FAQ

Additions & Expansions — Common Questions

Explore Our Other Services

We offer comprehensive residential construction services for every need.

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