ADU Contractors near San Marino, CA
EZ ADU & Garage Conversion
300 South Harbor Boulevard, Anaheim, CA 92805
23 miles
EZ ADU & Garage Conversion is a trusted ADU builder and garage conversion contractor in Orange County, CA. They offer custom ADU construction, garage conversions, design, and permitting services for homeowners seeking quality living space solutions.
read more
Cahla Construction Group
12207 Hawthorne Boulevard, Hawthorne, CA 90250
19.5 miles
Cahla Construction Group is a licensed ADU contractor in Los Angeles offering ADU construction, garage conversions, kitchen & bathroom remodeling, home additions, and general contracting for residential and commercial clients.
read more
YOR Construction
12135 Miranda Street, Valley Village, CA 91607
16.8 miles
An ADU (accessory dwelling unit) is a secondary home on a residential lot. Garage conversion ADUs are cost-effective options. YOR Construction, an LA-based ADU contractor, specializes in garage conversions tailored to homeowner needs.
read more
OC Master ADU Construction
809 East Katella Avenue, Orange, CA 92867
26.7 miles
OC Master ADU Construction builds ADUs across Orange County, offering detached units, garage conversions, JADUs & attached additions. Services include design, permitting & full construction management for rental income or family housing.
read more
All Inclusive ADU
4041 Macarthur Boulevard, Newport Beach, CA 92660
34.9 miles
All Inclusive ADU is a licensed ADU contractor serving Orange, Riverside, Los Angeles & San Diego Counties. They offer full-service ADU construction including detached ADUs, garage conversions & JADUs with fixed pricing and a 365-day warranty.
read more
Custom ADU Builder
Los Angeles, CA 90012
8.8 miles
Custom ADU Builder specializes in detached ADUs, attached ADUs, garage conversions & JADUs. Projects complete in ~3 months. Pricing starts at $235/sqft. Turn-key builds include quartz countertops, tile showers & luxury vinyl flooring.
read more
iHome Design & Remodel
614 South Euclid Street, Fullerton, CA 92832
20.3 miles
iHome Design & Remodel specializes in custom ADU and casita construction, offering full-service builds from design to completion. Services include garage conversions, detached ADUs, permit handling, and free 3D consultations for homeowners.
read more
Platinum Home Builders
5170 Sepulveda Boulevard, Los Angeles, CA 91403
20.7 miles
Platinum Home Builders & Design Inc. builds ADUs in Los Angeles, offering detached, attached, garage conversion, and above-garage units. They handle permits, design, and construction, with projects typically completed in 4–6 months.
read more
Revival Homes
1150 South Olive Street, Los Angeles, CA 90015
10.2 miles
Revival Homes is a California ADU project manager handling planning, financing, design, permitting, and construction. They build detached ADUs, garage conversions, JADUs, and more, with costs ranging from $100K to $300K.
read more
Perfect ADU & Remodeling Inc
21700 Golden Triangle Road, Santa Clarita, CA 91350
30.5 miles
Perfect ADU & Remodeling Inc specializes in ADU construction, including detached ADUs and garage conversions. Services cover design, permitting, and build. ADUs boost property value, enable rental income, and support multi-generational living.
read more
ODM Construction
28720 Roadside Drive, Agoura Hills, CA 91301
36.5 miles
ODM Construction specializes in garage conversions & ADU construction in Los Angeles County. With 25 years of experience, they handle permits, plans & build granny flats, in-law suites & casitas in Calabasas, Woodland Hills & beyond.
read more
Sten Engineering
601 South Brand Boulevard, San Fernando, CA 91340
21.8 miles
Sten Engineering is a Los Angeles firm specializing in ADU design, structural engineering, and garage conversions. Led by licensed P.E. Evgeny Nagovitsyn, they handle permits, structural plans, and ADU builds across Southern California.
read more
Liebo Builders
750 North San Vicente Boulevard, West Hollywood, CA 90069
15.6 miles
Liebo Builders is a Southern California ADU contractor specializing in detached, attached, garage conversion & interior ADUs. Services include custom design, permitting, and construction for guest houses, rentals & home offices.
read more
Fontana General Contractors
14189 Foothill Boulevard, Fontana, CA 92335
35.4 miles
Fontana General Contractors builds custom ADUs, including detached units, garage conversions, and in-law suites. They handle permits, zoning, and full construction management, helping property owners add value and flexible living space.
read more
John Christopher Construction
2246 Newport Blvd Unit A, Costa Mesa, CA 92627
33.7 miles
John Christopher Construction is a Southern California general contractor specializing in ADU design and building. Serving Huntington Beach, Newport Beach, Costa Mesa & more, they offer custom and pre-engineered ADU plans for rental units, in-law suites & more.
read more
Other cities in California
What you need to know
Building ADUs in San Marino: Navigating a Prestigious and Historically Conscious City
San Marino, California, is one of the most affluent and architecturally distinctive cities in Los Angeles County. Known for its grand estates, tree-lined streets, and strict preservation of its upscale residential character, San Marino presents a unique environment for ADU contractors. The city's strong emphasis on architectural harmony and neighborhood aesthetics means that building an Accessory Dwelling Unit (ADU) in San Marino requires careful planning, experienced professionals, and a deep understanding of local regulations.
San Marino ADU Regulations and Zoning Requirements
San Marino follows California state ADU law, which mandates that cities allow ADUs on single-family residential lots. However, the city enforces its own design standards to ensure that new ADUs blend seamlessly with the existing architectural character of the neighborhood. ADU contractors in San Marino must be well-versed in these local requirements, which may include:
- Setback requirements that align with San Marino's municipal code
- Height restrictions typically limiting detached ADUs to no more than 16 feet
- Design guidelines requiring ADUs to match the primary residence in materials, colors, and architectural style
- Maximum ADU size limits consistent with California state law (up to 1,200 square feet for detached units)
- Owner-occupancy considerations and rental regulations specific to the city
Why Hiring a Local ADU Contractor in San Marino Matters
Working with an experienced ADU contractor familiar with San Marino is essential. The city's Planning and Building Department has specific review processes, and permit approvals can be more detailed compared to neighboring cities. A knowledgeable contractor will help homeowners navigate the ADU permit process in San Marino, prepare accurate architectural drawings, and ensure full compliance with both state and local codes. This reduces costly delays and ensures your project moves forward efficiently.
Types of ADUs Commonly Built in San Marino
Given the large lot sizes typical of San Marino properties, homeowners have several ADU options available to them:
- Detached ADUs: Standalone structures built in the backyard, ideal for guest houses or rental units
- Attached ADUs: Units added to the existing home structure, such as a side addition
- Garage Conversions: Converting an existing detached garage into a livable ADU space
- Junior ADUs (JADUs): Units up to 500 square feet created within the existing home footprint
Maximize Your San Marino Property Value with a Quality ADU
Adding an ADU to your San Marino property is a smart investment. With median home values among the highest in Southern California, a well-designed ADU can significantly increase property value and generate rental income. Professional ADU contractors in San Marino understand how to deliver high-quality construction that meets the city's elevated standards while maximizing your return on investment. Contact a qualified local ADU contractor today to explore your options and begin the planning process.