
ADU (Accessory Dwelling Unit) in Corona
Professional adu (accessory dwelling unit) services in Corona, serving homeowners throughout Inland Empire. Corona sits at the western edge of the Inland Empire where the Santa Ana Mountains push up against a broad valley floor, and that geography shapes almost every project you take on here. Much of the housing stock dates from the 1980s through the early 2000s, so you are typically working with tract-built single-family homes on rectangular lots with standard setbacks, concrete tile roofs, and stucco exteriors that have spent decades baking in triple-digit summer heat and drying Santa Ana winds. That climate cycle causes stucco to crack, wood framing around windows and eaves to dry out faster than you might expect on the coast, and flat or low-slope roof sections to take a beating that shows up long before a homeowner notices it inside. Soil conditions vary more than the flat valley appearance suggests, with expansive clay common in parts of the city, so any foundation work, room addition, or ADU that involves grading or a new footing is worth a careful soils review before you price the job. Riverside County stretches from inland valleys to the low desert, and a good deal of that land sits outside any city limits, where the county rather than a municipality handles plan check and inspections. Inside an incorporated city, that city runs its own submittal process, its own fee schedule, and its own review queue, and none of it carries over from the city next door. California ADU law sets a statewide floor. The objective standards stacked on top of it are local, so confirm setbacks, height limits, and whether an HOA architectural review applies before you commit to a design. Common home styles in the area include 1980s and 1990s stucco tract homes in master-planned communities like Dos Lagos and Eagle Glen, 2000s-era large-footprint two-story production homes on compact lots in South Corona, 1970s single-story ranch homes with original wood-framed windows near downtown.

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Why Choose Us for ADU in Corona
ADU in Corona
An ADU or garage conversion in Corona plays out differently by lot type: flatland tracts from the 1960s through 1980s tend to have more usable side and rear yard than hillside parcels, where a graded pad leaves less flat ground to build on. Utility capacity is the first thing to check in an older flatland home, since the original panel and sewer lateral were sized decades before anyone planned a second unit. Hillside lots need site access and equipment staging worked out early, given the grade changes typical of foothill development. Drainage has to be rerouted carefully on a slope.
What to settle first in Corona
We work through these with you in Corona before the design is final: expansive clay soil common across Corona's inland flatlands that shifts with seasonal moisture and can affect foundations and flatwork; hot inland summers with intense UV exposure that degrades roofing, exterior paint, and composite materials faster than coastal climates; lot grading and drainage direction on hillside and canyon-adjacent parcels where water runoff paths must be confirmed before any hardscape or addition; and age of original copper or galvanized plumbing in pre-1980s homes that may need evaluation before walls are opened for a remodel.
Rental Income from Your Property
A completed ADU in Los Angeles can generate steady rental income that offsets your mortgage, funds retirement, or pays the unit back over time. What it earns depends on size, finish level and neighborhood, so we walk through realistic expectations for your property during the consultation.
California ADU Law Expertise
State and local ADU regulations change frequently. We track current setback reductions, parking exemptions, and owner-occupancy rules so your project qualifies for the most favorable code path available.
Permits Handled End to End
Cities must act on ADU permits within 60 days under state law. We prepare complete plan sets that anticipate common plan-check comments, which reduces revision cycles and keeps your timeline on track.
Garage Conversions and Detached Units
Whether you want to convert an existing garage, build a detached cottage, or add an attached junior ADU, we design and build all three types. Lot size, access, and utility locations determine the best option for your property.
Complete Living Spaces
Every ADU includes a full kitchen, bathroom, heating and cooling, and a separate entrance. Laundry hookups, closet storage, and outdoor patio space can be added depending on the floor plan.
Property Value That Compounds
An ADU adds both living area and income potential to your property appraisal. Buyers looking at your home see a ready-made rental unit, which makes your listing stand out in a competitive market.
Our ADU Process in Corona
Feasibility and Design Consultation
We visit your property to measure the lot, identify utility connections, and evaluate whether a detached, attached, or garage-conversion ADU is the strongest option. You receive a preliminary site plan and budget range at no obligation.
Architectural Plans and Permit Submittal
Our architects produce a complete ADU plan set including floor plan, elevations, structural details, and Title 24 energy calculations. We submit the package to the city and manage all plan-check correspondence.
Foundation and Framing
For new detached units, this starts with excavation and concrete work. Garage conversions begin with slab reinforcement and wall modifications. Framing, roofing, and exterior finishes close in the structure.
Mechanical, Electrical, and Plumbing
Dedicated electrical panel, water supply, sewer connection, and HVAC system are installed for the ADU. Each system is inspected separately before drywall goes up to confirm code compliance.
Finishes and Certificate of Occupancy
Kitchen cabinets, bathroom tile, flooring, paint, and fixtures complete the interior. After the final city inspection, you receive a certificate of occupancy and the unit is ready for tenants or family.
Licensed contractors. Transparent pricing. Quality you can see.
Our team brings over 20 years of combined residential construction experience to every Los Angeles project. We show up on time, communicate clearly, and deliver results that last.
CSLB Licensed and Insured
California contractor license #1063782. Full liability coverage on every project.
4.9 Rating, Over 200 Reviews
High ratings and verified reviews across Google, Yelp, and more.
20+ Years Combined Experience
Our team's combined residential construction experience in Los Angeles. We know local codes, soil conditions, and permit processes.
Full-Service: Design to Completion
We handle design consultation, architectural plans, permits, construction, and final inspections. One team, start to finish.
You Know Who's Coming Tomorrow
A written scope before anyone touches a wall, then updates through the build telling you who is arriving and what they are doing. Homeowners tell us this is the part they remember.
On-Time and On-Budget
Every project gets a written timeline and fixed-price contract. We hit our deadlines and don't surprise you with extra costs at the end.
Client Reviews for ADU in Corona
5
4.8
Yelp
200+
Total Reviews
Real feedback from homeowners across Los Angeles County.
“We have done recently a home remodeling project in Los Angeles, after reviewing 5 different contractors- Tal & Noy were the best team! Design ended sooo beautiful! My wife is speechless which is very hard to do lol. I’m very happy with the progress and service. Now he’s going to work on my son house as well- highly recommended.”
facebook review
“I had to build new construction ADU for my mother in law, after reviewing few different contractors I knew Tal is the right guy to go with. Very professional, had great advices, more knowledgeable than any other contractors I ever met. Project went smoothly, very communicative, help get the best value by building the right sqf and great finishes. If you looking for good contractor you can trust on- Tal is the right guy.”
facebook review
“Thanks to Tal I finally got to remodel my BEAUTIFUL home! I met few contractors- Tal was the only one who gave me the attention I needed- walked me through the whole process, I want to do so much but my budget wasn’t enough and he guide me perfectly where to invest my money- that’s exactly what I needed:) Highly recommended!!!”
facebook review
ADU Projects in Inland Empire
Browse completed projects from homeowners across Los Angeles. Each project starts with a free on-site consultation.

Complete Home Remodel
Sherman Oaks, CA

New Construction Home
Sherman Oaks, CA

Home Addition and Complete Remodel
North Hollywood, CA

New Construction ADU
Altadena, CA

Bathroom Addition
Sherwood Forest, CA

Complete Home Remodel
Brentwood, CA
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Licensed, Bonded, and Insured
Verify our license at cslb.ca.gov before you hire anyone. We would tell you to do that for any contractor.
CSLB License #1063782
General Building Contractor B
Fully Insured
Comprehensive general liability coverage
Bonded Contractor
Financial protection for every project
ADU FAQs — Corona
Answers to common questions from homeowners in Corona starting a adu project.
Start Your ADU Project in Corona
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