What's the average square foot cost for a room addition in Orange County, California?

Asked by Atomic Daydreams, 92647 Sat Apr 24, 2010

We're designing a 250 square foot room addition with hopes of a bar with sink, large exterior pocket-doors, clear story windows, and a sky light. Given these items run up the cost. Does anyone know of an estimated cost in our area.

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Rory, Home Buyer, New York, NY
Mon Aug 24, 2015
I have never seen a $125 per square foot addition in Southern California in over 30 years. The labor would have to be free slave labor or sweat equity for that to happen! Prices for average homes start at $185 per square foot and go into the $800's and above for luxury homes. Your project should run in the approximately $220 +/- range, but only detailed plans and fixed material and labor costs will determine your project cost.

Hire a general contractor capable of doing a design build to estimate your project or start with a detailed set of desires to give an architect. Your design build estimate should be faster, but an architect will often give you aesthetically pleasing designs you wouldn't think of otherwise.

When you hear of price per square foot people often calculate only the build costs. There are many fees, permits, delivery costs, etc. that bring a project value up - easily up!

Blessed endeavors,

Rory Burchatz, Owner
Building and Construction Contractors
CA Lic: 759677
P: (714) 892-0428 F: (714) 892-0105
0 votes
Shannon Jones, Agent, Seal Beach, CA
Tue Apr 8, 2014
Costs can vary greatly depending on the materials you use and the contractor.
0 votes
innercitysky…, , Newport Beach, CA
Tue Apr 8, 2014
Average costs for additions in Orange County can vary depending on the requirements. Approved plans is a must and costs vary depending on area. Sometimes certain neighborhoods are restricted from addition period. The average costs for additions range from 125$ per sqft to 250$ per sqft depending on the type of luxury you are requiring and the plans needed.

Request your free estimate and find costs, and determine project depth.

Inner City Skyline
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