ADU Contractors near Riverside, CA
Aligcus
1841 South San Gabriel Boulevard, San Gabriel, CA 91776
41.4 miles
Aligcus is an experienced ADU contractor specializing in detached ADUs, garage conversions, JADUs, granny flats, in-law suites, and backyard cottages. They guide homeowners through permitting and construction for all accessory dwelling unit projects.
read more
ADUscale
528 West Hampshire Avenue, Anaheim, CA 92805
31.6 miles
ADUscale is an independent ADU advisory service offering feasibility assessments, contractor verification, escrow-based payment protection, and construction oversight. Fixed-fee, conflict-free guidance for homeowners planning detached ADUs, garage conversions, or backyard cottages.
read more
CarbonShack Design
715 Cypress Avenue, Los Angeles, CA 90065
48.7 miles
CarbonShack Design offers expert ADU design services in Los Angeles, specializing in accessory dwelling units, detached ADUs, granny flats & in-law suites. Carbon-conscious building practices & design-first approach set them apart.
read more
Ultra-Unit Architectural Studio
1327 Loma Avenue, Long Beach, CA 90804
44.6 miles
Ultra-Unit Architectural Studio, based in Long Beach, CA, offers architecture and construction services for ADUs, residential, multifamily, and commercial projects. Led by Cameron Crockett AIA, LEED, with 25+ years experience. Free initial consultations available.
read more
Herbertson OG
6306 DOWNEY St, Riverside, CA 92509
5.9 miles
Herbertson OG is a construction and solar company offering ADU building, remodeling, new construction, roofing, HVAC, and solar panel installation. They serve homeowners, investors, and designers across residential and commercial projects.
read more
ADU's by Design
3600 Lime Street, Riverside, CA 92501
3.4 miles
ADU's by Design is an Inland Empire ADU contractor serving Riverside & San Bernardino County. They offer full-service accessory dwelling unit design & construction, including detached ADUs, garage conversions, remodeling & architectural design.
read more
Suncoast Construction Inc.
428 Sleeping Indian Road, Vista, CA 92057
47.4 miles
Suncoast Construction Inc. is a licensed ADU contractor in Oceanside, CA, building detached ADUs, garage conversions, JADUs & attached units per Oceanside's 2022 ADU Ordinance. No short-term rentals permitted.
read more
Prime Team Builders
147 West Route 66, Glendora, CA 91740
29.9 miles
Prime Team Builders is a general contracting company serving the Inland Empire, including Pomona, Ontario, Riverside & more. They specialize in kitchen remodeling, bathroom remodeling, and residential renovations throughout Southern California.
read more
Pixel Arch LLC
24001 Calle De La Magdalena, Laguna Hills, CA 92653
29.1 miles
Pixel Arch LLC, Glendale CA, offers residential architecture services including custom home design, ADUs, garage conversions, duplexes & remodeling. Permit-ready plans, Title 24 reports & 3D renderings for California clients.
read more
USA Builders Pro
2900 Bristol Street, Costa Mesa, CA 92626
33.5 miles
USA Builders Pro offers 20+ years of ADU construction and home addition services. Specializing in detached & attached ADUs, room additions, permits, and zoning compliance, they help homeowners boost property value and living space.
read more
JL Biber Construction Inc.
15548 Saddleback Road, Riverside, CA 92506
3.3 miles
An ADU is a secondary residential unit on the same property as a primary home. JL Biber Construction Inc., a licensed ADU builder in Riverside, California, offers full-service garage conversions, granny flats, and detached ADU construction.
read more
Fissile Home Solutions
Anza, CA 92539
49.2 miles
Fissile Home Solutions is a licensed general contractor in Redlands, CA, offering ADU construction, garage conversions, home additions, and remodels across the Inland Empire with local permitting expertise and personal project oversight.
read more
ADU Certified
4401 Atlantic Avenue, Long Beach, CA 90807
46.3 miles
ADU Certified is a Long Beach, CA contractor specializing in ADU planning, permitting & construction since 2000. Services include garage conversions, detached ADUs, kitchen & bathroom remodeling throughout Southern California.
read more
JDB Builders - Riverside
11801 Pierce Street, Riverside, CA 92505
0.9 miles
Building an ADU in Riverside takes 8–16 months. JDB Builders guides homeowners through design (1–3 months), permitting (2–4 months), construction (4–8 months), and final inspections (1–2 months) for granny flats, garage conversions, and more.
read more
Infinity ADU
645 West 15th Street, Long Beach, CA 90813
47.1 miles
Infinity ADU is a top ADU contractor in Long Beach, CA, specializing in attached, detached ADUs, granny flats & garage conversions. They handle design, permitting & construction, ensuring full local code compliance for a stress-free build.
read more
Other cities in California
What you need to know
ADU Contractors in Riverside, CA: Building in the Inland Empire's Largest City
Riverside, California, the seat of Riverside County and one of the largest cities in the Inland Empire, has seen a significant surge in Accessory Dwelling Unit (ADU) construction in recent years. As housing demand continues to grow in Southern California, Riverside homeowners are increasingly turning to experienced ADU contractors to maximize their property's potential. With its mix of historic neighborhoods, spacious lots, and a relatively lower cost of living compared to coastal cities, Riverside presents unique opportunities for ADU development.
Riverside ADU Regulations and Permitting Requirements
Before breaking ground, ADU contractors in Riverside must navigate the city's specific zoning and building codes. Riverside follows California's statewide ADU laws while also enforcing local ordinances. Key regulations include:
- Maximum ADU size: Detached ADUs can be up to 1,200 square feet, while attached ADUs are limited to 50% of the primary dwelling's square footage.
- Setback requirements: A minimum 4-foot rear and side yard setback is required for most ADU types.
- Height limits: Detached ADUs are generally limited to 16 feet in height, though this can vary by zone.
- Owner-occupancy: As of 2020, California state law removed owner-occupancy requirements, giving Riverside homeowners more flexibility.
- Parking: In many cases, no additional parking is required for ADUs located near public transit or within certain zones.
Types of ADUs Built by Riverside Contractors
Experienced ADU builders in Riverside are well-versed in constructing a variety of unit types to suit different property configurations and homeowner goals. Common ADU types in Riverside include:
- Detached ADUs: Standalone structures built in the backyard, ideal for Riverside's larger residential lots.
- Attached ADUs: Units added directly to the existing home, sharing at least one wall.
- Garage Conversions: Converting existing garages into livable space, a popular and cost-effective option.
- Junior ADUs (JADUs): Units up to 500 square feet created within the existing home's footprint.
Why Hire a Local ADU Contractor in Riverside?
Hiring a local ADU contractor in Riverside, CA offers distinct advantages. Local professionals are familiar with the City of Riverside's Building and Safety Division permitting process, which helps streamline approvals and avoid costly delays. They also understand the region's climate considerations, including the hot summers typical of the Inland Empire, ensuring proper insulation and energy-efficient design that meets California's Title 24 energy standards.
Costs and Investment Value of ADUs in Riverside
The cost of building an ADU in Riverside typically ranges from $100,000 to $300,000 depending on size, type, and finishes. Given Riverside's growing rental market and proximity to UC Riverside and major employment centers, a well-built ADU can generate significant rental income, making it a smart long-term investment for homeowners throughout the city.