Make Room for What Matters

From a new bedroom to a full second story, we build room additions across Anaheim Hills, Brea, Irvine, Orange, Placentia, Tustin, and Yorba Linda.

Types of Additions We Build

Master Bedroom Addition

Master Bedroom Addition

Extra square footage where your family actually needs it, designed to match your home’s existing lines rather than look bolted on.

Second Story Addition

Second Story Addition

The most efficient way to add real space without giving up yard. Also the most involved — engineering, permitting, and a longer build than a ground-floor addition.

Garage Conversion

Garage Conversion

Turn an underused garage into livable square footage — a home office, guest suite, or bonus room — without the cost of a ground-up addition.

Home Office

Home Office

A dedicated, quiet space that’s part of the house, not a spare corner of the dining room.

From Concept to Certificate of Occupancy

01

Free Consultation

We look at your lot, your home, and what you’re trying to gain.

02

Design & Permit Drawings

We draw the addition and submit plans to your city.

03

City Permit Application

We handle the back-and-forth with the permitting office so you don’t have to.

04

Construction

Our crew builds to the approved plans, with you kept in the loop.

05

Final Walkthrough & Completion

We walk the finished space together before we call it done.

Room Addition FAQ

How long does a room addition take in Orange County?
Timelines depend on the scope — a garage conversion moves faster than a second-story addition — and on how quickly your city issues permits. We’ll give you a realistic timeline for your specific project during the consultation rather than a generic number.
Do I need permits for a room addition?
Yes. Any addition that increases your home’s square footage requires city permits and inspections. We handle the permit process as part of our work.
What does a room addition cost in Orange County?
Cost depends heavily on size, scope, and finish level.
Will a room addition disrupt my daily life during construction?
There’s no way to add square footage without some disruption, but we plan the sequence of work to minimize impact on the parts of your home you’re still living in.
Can Progressive Builders match my home’s existing architecture?
Yes — matching rooflines, siding, and finishes so the addition looks like it was always part of the house is part of the design process, not an afterthought.

Request a Free Addition Estimate

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