General Contractor in Corona

Green Design and Build is a licensed general contractor (CSLB #1110975) based at 16120 Sherman Way in Van Nuys and working across western Riverside County, including Corona, about an hour and a quarter east by the 91. We are a full-service residential general contractor and design-build remodeler for projects of every size — kitchens, bathrooms, ADUs, room additions and whole-home renovations — serving homeowners across Los Angeles County, Orange County, Ventura County, western Riverside County and western San Bernardino County. Led by Dekel Sofer, we have completed hundreds of projects and hold a 4.7-star rating across 146 Yelp reviews.

Corona is the western gateway to Riverside County and the largest city in the part of the county we serve. It runs its own Building Division, most of its newer neighborhoods are HOA communities, and its southern edge runs into the Cleveland National Forest. This page covers what that means for a residential project.

Corona’s own permits

The city’s Building Division is at 400 South Vicentia Avenue, Suite 120, open Monday to Thursday 7 AM to 6 PM and closed Fridays. Permits, plan check status and inspections run through the city’s eTrakit online portal, and the division’s stated goal is approval by the third plan-check round, which is a realistic target for a well-prepared set. The city also publishes an ADU flow chart and an online map to verify fire hazard severity zones by address. We open the case, submit the set, clear corrections and schedule every inspection.

Three things shape Corona projects more than the code itself:

• HOAs. South Corona, Eagle Glen, Dos Lagos, Sierra del Oro and most communities built since the 1980s have associations that review exterior changes — additions, second stories, patio covers, ADUs — before the city issues a permit. Interior remodels generally need no approval.
• Fire zones. The neighborhoods against the Santa Ana Mountains and the Cleveland National Forest sit in Very High Fire Hazard Severity Zones; additions and new structures there use Chapter 7A ignition-resistant exteriors, Class A roofing and ember-resistant vents.
• Soils and heat. Expansive clay soils are common in parts of the Inland Empire and are a frequent cause of slab movement and stucco cracking; drainage and moisture control are part of any foundation fix. Summer temperatures well above 100°F make cool roofs, low-E glass and insulation above code minimum the best-paying upgrades in the city.

Electrical service changes go through Southern California Edison; water and sewer connections go through the City of Corona’s own utility.

Corona housing stock, by area

Old Corona and the Grand Boulevard circle (1900s–1950s). The original town inside and around the circular Grand Boulevard, with Craftsman, Spanish and post-war homes on raised foundations. Galvanized plumbing, 60- or 100-amp panels and unbolted sill plates are typical, and these are the Corona homes where a whole-home renovation makes the most difference.

The 1960s–80s tracts north and west of the 91. Single-story ranches on 6,000–8,000 sq ft lots with attached garages and slab foundations; kitchen remodels, rear additions and rear-yard ADUs are the common projects.

South Corona, Eagle Glen, Dos Lagos, Sierra del Oro (1990s–2010s). Two-story stucco-and-tile homes on HOA lots, many with view slopes and fire-zone edges. Finish-level remodels, outdoor living and pool decks, and ADUs designed for HOA review.

ADUs in Corona

Corona permits ADUs under the state framework — detached, attached, garage conversions and junior ADUs inside the house — through the Building Division’s ADU process, with the state 60-day clock applying to a complete application and impact fees waived under 750 sq ft. HOA communities review the design first, and fire-zone lots add Chapter 7A materials. Corona’s larger tract lots and the older Grand Boulevard lots are both good candidates for a detached unit. Our ADU rules calculator shows the state-law floor for your lot, and our guides on how much it costs to build an ADU and why ADU quotes vary so much explain the budget. Every Corona rule, fee category and permit step is laid out in our Corona ADU rules guide.

What we build in Corona

• Kitchen remodeling — opening 1970s and 1980s kitchens to the family room; rebuilding Old Corona kitchens with new plumbing and electrical. Read what homeowners wish they knew before remodeling a kitchen.
• Bathroom remodeling — see how much a bathroom remodel costs.
• ADUs and garage conversions, designed for HOA review where it applies.
• Room additions — rear additions and second stories on the tract lots.
• Whole-home renovations of Old Corona homes. See our remodeling services.
• Foundation and structural work — slab repair and drainage on expansive soils, seismic bolting on raised foundations. See warning signs your foundation needs repair.
• Roofing — cool-roof tile and shingle, Class A in the fire zones — and windows and doors with low-E glass for the heat.
• Patio covers, pavers and outdoor living — shade is the most requested outdoor project in Corona; see our patio cover cost guide.
• Concrete, retaining walls, artificial turf, fencing, outdoor kitchens and decks and landscaping and irrigation.
• Flooring and painting with coatings specified for sun exposure.
• Plumbing and electrical upgrades as part of remodels, performed by licensed tradespeople.

Permits in Corona: how we run it

HOA and fire zone first, then the city. We verify the fire hazard zone on the city’s map, prepare the HOA architectural package where one applies, and submit it before the eTrakit set so the two match. Plans, structural engineering and Title 24 energy compliance go in as one set; we clear corrections, pull the permit on Vicentia Avenue and schedule inspections through to final. Our Riverside County page covers the rest of the western county — Riverside, Norco, Eastvale, Murrieta — and explains where our service area ends.

What homeowners say

From our Yelp reviews:

“They completely remodeled my kitchen and they turned out beautiful. The job came in within my budget including full 3rd design rendering.” — Yakir A.

“I hired Green Design and Build to do my bathroom. From start to finish, Drake was the best!” — Leore O.

More on our About page.

Frequently asked questions

Can I build an ADU in Corona?

Yes, Corona permits detached and attached ADUs, garage conversions and junior ADUs under the state framework through its Building Division, with the 60-day review clock applying to a complete application and impact fees waived under 750 sq ft. HOA communities such as South Corona, Eagle Glen and Dos Lagos review the design before the city issues the permit, and fire-zone lots add Chapter 7A materials. Green Design and Build designs to both and submits through eTrakit.

Will my HOA need to approve my remodel?

In most Corona communities built since the 1980s, the association reviews exterior changes — additions, second stories, patio covers, ADUs — before the city issues a permit, while interior remodels usually need no approval. Green Design and Build prepares the HOA package and submits it first so the permit set matches what the association approved.

Is my Corona home in a fire zone?

The neighborhoods against the Santa Ana Mountains and the Cleveland National Forest — much of South Corona and Sierra del Oro — include parcels in Very High Fire Hazard Severity Zones, which the city’s online map confirms by address; the flat tracts north of the 91 generally are not. In the zone, additions and new structures use Chapter 7A ignition-resistant materials and Class A roofing. Green Design and Build checks the map for every Corona address before designing.

Why does my Corona slab or stucco keep cracking?

Expansive clay soils common in parts of western Riverside County swell when wet and shrink when dry, which moves slabs and cracks stucco; the fix is usually drainage and moisture control around the foundation together with the structural repair, not the repair alone. Green Design and Build inspects the drainage at the site visit and prices both parts so the problem does not return.

How far is Green Design and Build from Corona?

Green Design and Build’s office at 16120 Sherman Way in Van Nuys is about an hour and a quarter from Corona by the 91 Freeway, depending on the time of day. We schedule Corona site visits around traffic, run crews on an early start, and manage the project with the same project manager from the first visit to the final walkthrough. Homeowners are welcome to visit the office, which is open every day from 8 AM to 6 PM.

Are you licensed to work in Corona?

Yes, Green Design and Build holds California General Building Contractor license CSLB #1110975 and is licensed, bonded and insured for residential work in Corona and throughout western Riverside County. The license can be verified on the Contractors State License Board website. HVAC, plumbing and electrical work on our projects is performed by licensed tradespeople.

Plan your Corona remodel with a contractor who builds for the heat and the soil

Tell us the neighborhood and what you want to build, and we will schedule a free site visit, check the HOA, fire-zone and soil conditions that apply, and give you a written, itemized estimate.