Attached ADU near Westminster, CA
LPI Construction
149 Poinsettia Avenue, Monrovia, CA 91016
27.7 miles
LPI Construction offers custom homes, ADU construction, and solar electric systems. Services cover hillside builds, detached/attached ADUs, garage conversions, and sustainable building practices, managing full project lifecycles from permits to co... read more
NP Line Design INC
22616 Kittridge Street, West Hills, CA 91307
48.7 miles
A2Z ADUs
3610 Central Avenue, Riverside, CA 92506
37.2 miles
A2Z ADUs, a Riverside, CA-based ADU contractor, builds detached and attached accessory dwelling units, in-law suites, and granny flats, managing design, permitting, and zoning compliance for homeowners seeking rental, guest, or family living space... read more
California ADU Center INC
7542 Laurel Canyon Boulevard, Los Angeles, CA 91605
33.4 miles
California ADU Center INC specializes in ADU planning, design, and construction across California. Services include detached ADUs, garage conversions, JADUs, granny flats, and in-law suites. They manage permitting and navigate California's ADU reg... read more
The Sterling-Watson Collective
1441 Huntington Dr, 1900, South Pasadena, CA 91030
25.8 miles
Sterling-Watson Collective is a full-service ADU contractor in Los Angeles offering design, permitting, structural engineering & construction management for accessory dwelling units, helping homeowners add rental units, guest suites & more... read more
IBA Builders
13743 Ventura Boulevard, Sherman Oaks, CA 91423
37.8 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... read more
ADU Design Homes
2610 Pacific Avenue, Manhattan Beach, CA 90266
25.5 miles
ADU Design Homes is a full-service ADU design and build firm in Los Angeles and Orange County. They handle detached ADUs, JADUs, garage conversions, permitting, engineering, and construction under one roof.
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ADU Los Angeles
3744 Flower St, Los Angeles, CA 90007
24.7 miles
ADU Los Angeles (ADLA) is a specialized ADU contractor serving LA County. They offer consulting, custom design, construction, garage conversions, basement ADUs, attached and detached units, helping homeowners maximize property value.
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Daniel's Development Group
22025 San Miguel Street, Woodland Hills, CA 91364
44.4 miles
Daniel's Development Group builds ADUs in Los Angeles, including attached, detached, garage conversions & JADUs. Permits cost ~$6,000. Rental income averages $2,500/month. Free consultations available.
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Lux Construction Group
10850 Wilshire Boulevard, Los Angeles, CA 90024
33.3 miles
Are you looking for the best ADU Contractor in Los Angeles? Having 20+ years of experience, Lux Dev LA offers the most affordable ADU Construction & design services. Let us design and build your new ADU project today. Contact us for a FREE quo... read more
SouthStar USA
1611 Pomona Road, Corona, CA 92878
24.5 miles
SouthStar USA offers ADU construction in Riverside & Orange County, CA. Services include detached ADUs, attached ADUs, garage conversions & JADUs. Quality builds, permit-compliant, with transparent pricing for every project stage.
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ORR Construction
1977 Obispo Avenue, Signal Hill, CA 90755
10 miles
ADUs are secondary units built on existing lots. ORR Construction builds detached ADUs, garage conversions, JADUs & in-law suites in California. Costs range $50–$300/sq ft. California laws like SB 897 simplify the permitting process.
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Pomona General Contractors
3191 W Temple Ave Suite 130, Pomona, CA 91768
23.1 miles
Pomona General Contractors offers ADU construction in Pomona, including detached ADUs, attached ADUs, and garage conversions. Services cover permitting, 3D design, energy-efficient builds, and full construction management for granny flats, in-law ... read more
LA Family Builders
6355 California 27, Los Angeles, CA 91367
27.7 miles
LA Family Builders is a California general contractor specializing in ADU construction across Los Angeles. Services include detached ADUs, garage conversions, granny flats, JADUs, and casitas, covering Beverly Hills, Pasadena, Malibu, and more.read more
The ADU Guru
3438 Troy Drive, Los Angeles, CA 90068
32.1 miles
The ADU Guru is a full-service ADU contractor in Los Angeles & Orange County, specializing in garage conversions, detached ADUs & granny flats. With 100+ units completed, they offer $0 down, free 3D design & tenant placement.
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Other cities in California
What you need to know
Searching for top Attached ADU ADU Contractors in Westminster, California? Our directory highlights trusted local professionals who specialize in designing and building accessory dwelling units (ADUs).
Working with a qualified Attached ADU ADU Contractor in Westminster ensures your ADU project meets local building codes, zoning laws, and permit requirements. Whether you're planning a detached ADU, garage conversion, or backyard cottage, experienced Attached ADU professionals can guide you through every step.
Westminster homeowners are increasingly investing in ADUs to create additional living space, generate rental income, or support multigenerational living. The Attached ADU experts featured here bring local expertise and proven experience to help make your project a success.
Browse our listings to find the best Attached ADU ADU Contractors in Westminster, California, and get started today.