ADU Contractors near San Marino, CA
Nagar Builders Inc.
6245 Wilshire Boulevard, Los Angeles, CA 90048
15.3 miles
Nagar Builders Inc. is a Los Angeles construction company offering ADU construction, garage conversions, kitchen and bathroom remodeling, room additions, roofing, electrical work, and commercial remodeling since 2019.
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IBA Builders
13743 Ventura Boulevard, Sherman Oaks, CA 91423
19.1 miles
Garage conversion to ADU in Los Angeles requires structural upgrades, permits, and utility connections. IBA Builders evaluates ceiling height, slab condition, setbacks, and utility access before design begins, ensuring code compliance and accurate project scoping.
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DB Construction
4555 Valley Boulevard, Los Angeles, CA 90032
16.6 miles
DB Construction is a full-service ADU contractor in Greater Los Angeles, building detached ADUs, garage conversions, JADUs, in-law suites, and room additions. They manage permits in-house, offering transparent costs and turn-key project completion.
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L Square Construction
Irvine, CA 92705
31 miles
L Square Construction is an ADU contractor serving Los Angeles & Orange County, CA. They offer full-service design-build ADU solutions including detached units, in-law suites, garage conversions, and energy-efficient builds with solar integration.
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Tracy A. Stone Architect
2041 Blake Avenue, Los Angeles, CA 90039
8.8 miles
Garage converted to pool house ADU by Tracy A. Stone Architect, featuring a north-south roof ridge for Tesla Solar Roof optimization, backyard visual connectivity, and a dramatic overhang for summer shading and energy efficiency.
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Smart ADU Builder
6 Venture, Irvine, CA 92618
38.1 miles
Smart ADU Builder offers customizable ADU floor plans from 400–1,200 sq ft, including granny flats, in-law suites & backyard cottages. Choose from 20+ pre-approved plans or custom designs with smart home features & energy-efficient systems.
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Fullerton ADU Builder
125 North Euclid Street, Fullerton, CA 92832
19.9 miles
Fullerton ADU Builder offers expert ADU construction services including detached ADUs, garage conversions, JADUs, in-law suites & home additions. 10+ years experience, licensed & insured, transparent pricing, free consultations & full permit handling.
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FabuHome
9451 Telstar Avenue, El Monte, CA 91731
4.8 miles
FabuHome offers affordable ADU building services, including detached units, in-law suites & backyard cottages. Full-service design to construction, tailored to your budget, helping homeowners add value & flexible living space.
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1 Degree Construction
13107 Ventura Boulevard, Studio City, CA 91604
16.5 miles
1 Degree Construction is a Los Angeles ADU builder & home addition contractor. Services include detached ADUs, garage conversions, second-story additions & in-law suites. Projects range from $30K to $150K+.
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Waconah Construction
616 Edgewood Street, Inglewood, CA 90302
17.3 miles
Waconah Construction builds custom ADUs in West Los Angeles, including backyard cottages, garage conversions, above-garage units, and granny flats. Serving Santa Monica, Venice, Brentwood & Beverly Hills, they guide homeowners through design, permitting, and construction.
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Ground Up Builders
14520 Erwin Street, Van Nuys, CA 91411
19.8 miles
Ground Up Builders helps Alhambra homeowners build fully permitted ADUs, including garage conversions, detached units, and backyard cottages. As a design-build ADU contractor, they manage design, permitting, and construction.
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Horizon Remodeling Inc.
614 South Euclid Street, Fullerton, CA 92832
20.3 miles
Horizon Remodeling Inc. is a full-service residential remodeling company offering kitchen, bathroom, roofing, flooring, painting, and ADU conversions. Dedicated project managers coordinate all trades, keeping projects on schedule and within budget.
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Esco Builders Inc
Downey, CA 90242
14 miles
En Builders Inc.
18375 Ventura Boulevard, Tarzana, CA 91356
24.7 miles
En Builders Inc. is an ADU contractor offering granny flats, garage conversions, JADUs, and 2nd story ADUs. They also provide kitchen remodeling, bathroom remodeling, room additions, roofing, solar solutions, and more.
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Snow Construction
6647 Orion Avenue, Los Angeles, CA 91406
21.1 miles
Snow Construction is an LA-based ADU and granny flat builder offering planning, design, and construction services. They help homeowners add secondary units, navigate permits, and understand parking rules under California's 2017 ADU legislation.
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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.