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Top-Rated Addition to existing structure builders in Olema - Updated Nov 2026

Avatar for Ceres Construction
Ceres Construction
5.0(
11
)
Addition to Existing Structure - Build

Serving Olema, CA and surrounding areas

Approved

Free estimates

Warranties offered

Customers say: True professional

"Ceres Construction did an excellent job building a new deck and replacing two columns at my home in Sausalito. The result is beautiful. I highly recommend them for residential remodeling and new additions."
Structural beam and layout modification
Remodeling - General Project
building new partition wall
Remodeling - General Project
Kitchen remodeling

+22

1 neighbors recently requested a quote
Recommended by54%of homeowners
Avatar for J R A Construction
J R A Construction
5.0(
12
)
Addition to Existing Structure - Build

Serving Olema, CA and surrounding areas

Approved

In business since 2005

Free estimates

Small jobs welcome

"Outstanding work from start to finish. The quality of the workmanship exceeded my expectations, and the project was completed on time and within budget. I would definitely recommend this company to anyone needing construction work. Great communication, quality craftsmanship, and fair pricing."
Full kitchen remodel
Bathroom remodel
All kitchen remodel
All kitchen remodel
Concrete patio

+51

Response time2 days
5 neighbors recently requested a quote
Recommended by8%of homeowners
Avatar for Bay Builders, Inc.
Bay Builders, Inc.
5.0(
5
)
Addition to Existing Structure - Build

Serving Olema, CA and surrounding areas

Approved

Super Service Award Winner

In business since 1979

Free estimates

Warranties offered

"John and his team do amazing work. Built a stunning custom office space with a floor to ceiling library, custom cabinets and custom French doors that blended into our existing home design. I’ve owned a number of homes over the years and I’ve never worked with a builder more dedicated to quality and with more experience than Bay."
Response rate100%
11 neighbors recently requested a quote
Recommended by75%of homeowners
Avatar for Villa Family Construction LLC
Villa Family Construction LLC
4.9(
5
)
Addition to Existing Structure - Build

Serving Olema, CA and surrounding areas

Approved

In business since 2000

Free estimates

Warranties offered

"A million thank u's to Declan, Jackie, Vince, Alex and Holden. Job well done! My bathroom and loft look wonderful. I was very nervous about this project. Had a previous issue with someone else who ghosted me and left my vanity in the dining room. Nice huh? Luckily, Jackie called me though Angi's list, booked an appointment and the rest was magic! Attention to detail, quality and accountability describes this company. Thanks again everyone! I'll be seeing you in the spring!"
Finished product
bedroom #2
master bedroom
Cedar Shingle install
bathroom #1

+2

Response time10 hrs
Recommended by80%of homeowners
Avatar for RockBay Construction and Remodeling
RockBay Construction and Remodeling
5.0(
2
)
Addition to Existing Structure - Build

Serving Olema, CA and surrounding areas

Approved

In business since 2014

Free estimates

Credit card accepted

"I recently reached out to Rockbay to remodel my kitchen and add a back deck. The pricing matched my budget so I hired them. It was a great decision. They really opened up the space by removing a wall and adding an island. They also added a door from the kitchen to the back deck. We love to grill so this was perfect for us. They did a truly wonderful job and I'm quite pleased with how everything turned out. I'll definitely be hiring them for any future renovations."
Bathroom Remodel
Master bedroom bathroom remodel
Complete kitchen & dining room remodel
Complete home Remodel
Master Bathroom Makeover

+284

Response time2 days
Response rate100%
23 neighbors recently requested a quote
Avatar for JD Mathew Construction Inc
JD Mathew Construction Inc
4.8(
7
)
Addition to Existing Structure - Build

Serving Olema, CA and surrounding areas

Approved

In business since 2021

Free estimates

Small jobs welcome

"Jeff at JD Mathew Construction was great to work with for my exterior home siding project. He and his crew were on time, efficient and excellent at communication. I appreciate that Jeff coordinated all aspects of the project and explained both how the original work done by the builder may have failed and how to maintain longevity of the updates completed by he and his team. I would trust Jeff with any of my home needs in the future."
Recommended by42%of homeowners
Avatar for String Theory Construction
String Theory Construction
5.0(
2
)
Addition to Existing Structure - Build

Serving Olema, CA and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"Dana was the foreman on a major remodeling project on our property. We added a guest cottage which involved excavating over 100 ft.³ of hillside, foundation, as well as construction. He also remodeled the main house extensively from a concrete pour to new roof, electrical flooring, fine carpentry and everything in between. Throughout the 2- year project, Dana was attentive to detail, honest, mindful of the budget and schedule, and collaborative on creating solutions. He is such a kind hearted person, and was a pleasure to have around the home. I canâ t say enough good things about String Theory Construction!"
Tiled deck
Tiled deck
Tiled deck
Night-view of the finished product
Below deck composite soffit boards

+13

Response time2 days
1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Management Design V. Brothers Corp.
Management Design V. Brothers Corp.
5.0(
2
)
Addition to Existing Structure - Build

Serving Olema, CA and surrounding areas

Approved

In business since 2000

Offers commercial services

Customers say: Quick response

"They did such a great job. Jose was extremely easy and flexible to work with. The crew did a very thorough job and my new steps look and feel great and very sturdy. I’ve received many compliments from people in my neighborhood about my new steps. I’m very happy with the job and wouldn’t hesitate to hire Management Design Brothers again for any large project that I have. A job very well done!!"
Bathroom remodel
Custom built in cabinets
New bathroom shelves and title
Installation of shower glass, lamps and mirrors
Built- in cabinets

+14

Response time2 days
Recommended by50%of homeowners
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FAQs for addition to existing structure building service projects in Olema, CA

You can typically raise your roof by four to eight feet, depending on your home's structure and roof design. The exact amount depends on factors like roof slope and framing support. Raising the roof creates additional interior space, enhances natural light, and increases your home's value. Consult a professional to determine the feasible height increase for your home.

Yes, you need a building permit to raise your roof. Obtaining a building permit ensures your project complies with local building codes and safety regulations. A professional contractor can assist with the permit and inspection process and ensure all legal and safety requirements are met. Your contractor will be familiar with building codes in your area, which can differ between cities or states.

While it's possible to raise a flat roof, it requires extensive structural modifications. Flat roofs lack the attic space and support structures of pitched roofs, so raising them involves significant engineering to ensure safety and durability. This process can be complex and costly, so professional assessment is essential before undertaking a project of this magnitude.

The Olema, CA homeowners’ guide to addition to existing structure building services

From average costs to expert advice, get all the answers you need to get your job done.