General Contractor in Thousand Oaks


Based in the nearby community of Sherman Oaks, Addition Building & Design, Inc. has close ties to and years of experience working in the town of Thousand Oaks, California. We offer General Contracting services to:


Property owners

Residential Houses, condominiums, office buildings and retail space, etc.


Small and Large Businesses

Office space tenant improvements, additions and new construction


Banks, Mortgage Companies, Real Estate Managers

Foreclosure unit renovation, preparation and expansions


Thousand Oaks Facts

Zip Codes:

91359, 91320, 91360, 91361, 91362

Area code:805


County:  Ventura

State: California




Lake Sherwood                                         Thousand Oaks Oak Tree & Sign


Thousand Oaks, California

Thousand Oaks is a city in southeastern Ventura County, California, United States. It is in the northwestern part of the Greater Los Angeles Area, approximately 35 miles (56 km) from Downtown Los Angeles and is less than 15 mi (24 km) from the Los Angeles city neighborhood of Woodland Hills. It was named after the many oak trees that grow in the area, and the city seal is adorned with an oak.

The city forms the populated core of the Conejo Valley, which includes Thousand Oaks proper, Newbury Park, Westlake Village, Agoura Hills, and Oak Park. The Los Angeles County–Ventura County line crosses at the city's eastern border with Westlake Village. The population was estimated to be 128,731 in 2013, up from 126,683 at the 2010 census.[8]


Addition Building & Design appreciates the importance of building & remodeling to maintain the picturesque quality of this lovely area. We have been trusted in many of the homes in Thousand Oaks and are conscious of the need to take special care of the historic area in zip codes



From the auspicious zip codes of

91359, 91320, 91360, 91361, 91362

to many acres of open space, Thousand Oaks is a magnificent town which we are proud to keep looking beautiful with great designs and quality work.