Room Addition Contractor Los Angeles

Most single-room additions run 3 to 5 months from permit approval to final inspection. The permit itself, submitted through LA County's Department of Regional Planning on West Hollywood's behalf, typically takes 6 to 12 weeks for a standard residential addition. Expedited plan check is available for a fee and can cut that in half.

Design and engineering work runs 2 to 4 weeks before you even submit. So from the day you sign a contract, plan for 5 to 7 months total in most cases. Larger additions or projects requiring a variance or neighborhood notification add more time.

Costs vary with the scope of the addition, the condition of the existing structure, and finish selections. A basic bedroom addition typically costs more per square foot than a large family room because the bathroom plumbing and electrical load requirements drive costs up.

For detailed Los Angeles cost data, see our guide: How Much Does a Home Addition Cost in Los Angeles? which breaks down typical ranges by addition type, finish level, and what drives costs higher in LA specifically.

Yes, always. Unpermitted ADUs create problems at resale, affect your insurance, and in some cases result in orders to demolish the work. West Hollywood processes ADU permits through the County. California state law now limits local agencies from rejecting ADU applications on design grounds if the unit meets size and setback requirements, which has simplified the process significantly.

Junior ADUs carved from existing living space (a converted bedroom with a kitchenette, for example) are subject to lighter requirements and often permit faster. Our ADU contractor guide for Los Angeles explains current state and local rules in detail.

Yes, and most bedroom additions benefit from an attached bathroom. Adding plumbing to an addition is easier than adding it to an existing interior because the drain lines can be run before the slab or subfloor is closed. The complicating factor is tying into the main drain line, which in older West Hollywood homes is often cast iron and may need a section replaced when you open it up.

If you are curious about bathroom costs and options as a standalone project, see our resource on finding a bathroom remodel contractor in Los Angeles for what to look for and what questions to ask.

Yes. We hold CSLB License #1048107 issued by the California Contractors State License Board. This covers general building contracting across California, including West Hollywood. You can verify our license status directly at cslb.ca.gov. We are also fully insured with general liability and workers' compensation coverage.

Hiring an unlicensed contractor in California means you assume legal liability for injuries on your property and have no recourse through the CSLB's dispute resolution process. It is not a risk worth taking on any permitted project.

We work throughout West Hollywood and the surrounding neighborhoods: the Norma Triangle, the Melrose District, Laurel Canyon, and across the border into East Hollywood, Silver Lake, and Sherman Oaks. Our home base is Los Angeles, and most of our work stays within that corridor.

West Hollywood lots tend to run between 5,000 and 7,500 square feet, which shapes how we approach additions. Maximizing the buildable footprint within setback constraints is a consistent design challenge in this area, and one we have solved many times.