Buy with Confidence — Get Pre-Approved in Minutes →

Corona Homes with ADU, Casita & Guest House

This page is your ADU guide for Corona, CA — a fast-growing Riverside County city at the junction of the 91 and I-15 freeways, with more than 160,000 residents and a strong base of commuting professionals and young families.

Corona’s Accessory Dwelling Unit (ADU) ordinance (Chapter 17.85 of the municipal code) implements California’s ADU laws while setting local development standards for attached, detached and conversion ADUs and junior ADUs (JADUs) on single-family and multifamily lots. Recent updates through Ordinance No. 3410 align Corona with new state legislation and streamline approvals.

Fun Fact: Corona’s city limits cover just under 40 square miles, and the city markets itself as a “vibrant, culturally diverse community in the heart of Southern California” — with the Corona-North Main Metrolink Station serving as a regional transit hub for the 91 and I-15 corridors.

Explore Corona Real Estate | See All Corona Open Houses | Riverside County Real Estate

⭐ Riverside County ADU Specialist — Antoinette Nichols: Antoinette helps Corona homeowners and buyers interpret Chapter 17.85 ADU standards, including lot eligibility, height limits, setbacks, parking, and the differences between ADUs and JADUs. She focuses on identifying ADU-ready lots, garage conversion opportunities, and rental projections in Corona’s established neighborhoods and newer tracts.

Why ADUs Make Sense in Corona’s Commuter & Family Market

  • Corona’s location supports strong long-term rental demand. With direct access to the 91 and I-15, Metrolink service, and employment centers in both the Inland Empire and Orange County, well-located ADUs can appeal to commuters who want stable, long-term housing.
  • Local code allows ADUs on single-family and multifamily parcels. Corona’s ADU ordinance permits accessory units on lots with an existing or proposed primary dwelling in qualifying residential zones, with separate standards for detached, attached and conversion ADUs.
  • State law guarantees baseline size and setback protections. Corona must comply with California’s minimum allowance for at least an 800 sq ft, 16-foot tall ADU with 4-foot side and rear setbacks in many cases, even where local standards are more restrictive.
  • Owner-occupancy requirements are no longer allowed for most ADUs. Under AB 976, cities like Corona cannot impose owner-occupancy requirements on standard ADUs, giving investors and move-up owners more flexibility with long-term rentals.
  • JADUs provide a smaller, flexible option. Junior ADUs (JADUs) are typically up to 500 sq ft, created within an existing home or accessory structure, and can share a bathroom while using an efficiency kitchen — useful for multigenerational households or office/guest space.

Corona ADU, Casita & Guest House Listings

Live MLS feed — focused on homes with casita or guest-house style potential:

New ADU-capable and multi-gen friendly listings in Corona appear as the market updates.

Where Is Corona, CA?

Corona is a culturally diverse city in western Riverside County, located at the junction of State Route 91 and Interstate 15, with convenient connections to Orange County, the Inland Empire and regional transit at the Corona-North Main Metrolink Station.

For official standards and applications, see Corona Municipal Code Chapter 17.85 – Accessory Dwelling Units and the Development Services & Planning Division .

Corona ADU & Financing FAQ

Q: What types of ADUs does Corona allow?

A: Corona’s ADU ordinance allows detached, attached and conversion ADUs on eligible single-family and multifamily lots, along with junior ADUs (JADUs) created within an existing home or accessory structure, subject to Chapter 17.85 of the municipal code and state law.

Q: How large can a detached ADU be in Corona?

A: Consistent with California’s ADU framework, Corona must allow at least an 800 sq ft, 16-foot tall ADU with 4-foot side and rear setbacks on most residential lots, and may allow detached ADUs up to 1,200 sq ft depending on zoning, lot size and other standards.

Q: Is owner-occupancy required for ADUs in Corona?

A: No. Under AB 976, local agencies in California — including Corona — are prohibited from imposing owner-occupancy requirements on ADUs, which means owners can often rent both the main home and ADU as long-term housing when other rules are met.

Q: How does Corona handle ADU parking?

A: Corona follows state ADU parking rules: in many cases only one space per ADU may be required, and no additional parking is required when the ADU is near qualifying transit, part of an existing structure, or meets other state exemptions. Details are outlined in Chapter 17.85 and related development standards.

Q: Can I convert an existing garage or accessory structure into an ADU in Corona?

A: Yes. Corona’s ordinance allows conversion of existing space to ADUs when the project meets building, safety and fire requirements. Replacement parking may not be required in many state-exempt scenarios, especially near transit or when converting within the existing footprint.

Q: Where can I find official ADU information for Corona?

A: Start with the city’s ADU chapter (17.85) of the municipal code, then contact the Development Services / Planning Division for current submittal checklists and plan-check requirements.

ADU Planning & Strategy with Solve Lending & Realty

Our team helps Corona buyers and owners evaluate lot eligibility, setbacks, height limits, utilities and rental potential before you design or purchase an ADU-capable property — so you understand feasibility and financing together.

Riverside County specialist Antoinette Nichols leads ADU planning in Corona, backed by integrated lending strategy and broker oversight from Kenji Inui.

Finance Your Corona ADU or Second Unit

Watch the ADU financing overview, then structure the right loan for your Corona project.

ADU Financing Options

Use your existing equity or structure a new purchase that anticipates ADU construction and long-term rental income potential in Corona.

Cash-Out to Build ADU Purchase Loans Second Mortgages

Check Your Corona Home’s ADU Equity Potential

Get an updated estimate of your home’s value and see how much equity might be available to fund an ADU build or a move into a more ADU-ready property in Corona.

Check My Home Value

Talk to Antoinette Nichols About ADU Properties in Corona