ADU Glossary
ADU Deed Restrictions: What They Are & How They Affect You
Understanding the legal limitations on ADU use, rental, and sale — and how California law has changed the landscape.
Quick Answer
An ADU deed restriction is a legal limitation on how you can use or sell your ADU — most commonly an owner-occupancy requirement, though California removed many of these in recent legislation.
Updated April 2026
What Are Deed Restrictions?
A deed restriction (also called a restrictive covenant) is a legal condition written into a property's deed that limits what the property owner can do with the land or structures. Deed restrictions "run with the land," meaning they apply to all current and future owners — not just the person who agreed to them.
Deed restrictions affecting ADUs can come from several sources: the original subdivision developer, a homeowners association (HOA), a previous city approval condition, or state and local ADU ordinances. These restrictions can significantly impact your ability to build, rent, or sell an ADU.
The good news is that recent state legislation — particularly in California — has invalidated many deed restrictions that conflict with ADU-friendly policies. However, some restrictions remain valid, and it's critical to understand which ones apply to your property before investing in an ADU project.
Types of Deed Restrictions Affecting ADUs
🏠 Owner-Occupancy Requirements
The most common ADU deed restriction. Owner-occupancy means the property owner must live in either the main home or the ADU. This was historically imposed by cities to limit ADU use to family members and prevent 'absentee landlord' situations.
California Status: Eliminated for standard ADUs (2020). Still required for JADUs.
🔒 Rental Restrictions
Some deed restrictions or CC&Rs prohibit renting to non-family members or restrict short-term rentals (less than 30 days). While state law prevents total rental bans for ADUs, short-term rental restrictions are often upheld.
California Status: Long-term rental cannot be prohibited. Short-term rental restrictions may be valid locally.
💰 Sale Restrictions
Traditionally, ADUs cannot be sold separately from the primary home. The ADU is considered an accessory use tied to the main property. This restricts ADU investment potential but is being addressed by new legislation.
California Status: AB 1033 (2024) allows separate sale if the city opts in.
📋 HOA / CC&R Restrictions
Homeowner associations often have CC&Rs (Covenants, Conditions & Restrictions) that limit construction of additional structures, restrict rentals, or impose design requirements that make ADU construction impractical.
California Status: HOAs cannot ban ADUs outright but can impose reasonable design standards.
📐 Size and Design Restrictions
Some deed restrictions limit the size of secondary structures, require specific building materials, or impose height restrictions beyond what zoning requires. These can add cost or limit ADU design options.
California Status: Cannot conflict with state minimum allowances (800 sq ft / 16 ft).
⚖️ Use Restrictions
Older deed restrictions may limit property use to 'single-family residential only,' which some HOAs have interpreted as prohibiting ADUs. State law has largely overridden these restrictions in ADU-friendly states.
California Status: 'Single-family' deed restrictions cannot prevent ADU construction.
California's AB 1033: Separate ADU Sale
AB 1033 (effective January 1, 2024) is one of the most significant changes to ADU deed restrictions. It allows cities to opt in to a program that permits ADUs to be sold separately from the primary home through a condominium-like arrangement.
Under AB 1033, a homeowner can create a two-unit condominium map — one condo for the main home, one for the ADU. Each unit then has its own title and can be financed and sold independently. This is a game-changer for ADU affordability because it:
- Creates more affordable homeownership opportunities (buying an ADU condo is cheaper than a full house)
- Allows ADU builders to recoup their investment through sale rather than long-term rental
- Opens ADU financing to conventional mortgage products (instead of just home equity loans)
- Increases property value because each unit is independently marketable
- Helps first-time buyers enter the market in expensive metro areas
Note: AB 1033 is an opt-in program — cities must adopt a local ordinance to allow it. As of 2026, a growing number of California cities have opted in, but it's not universal. Check with your city's planning department.
How to Check for Deed Restrictions
Before starting an ADU project, check your property for deed restrictions that might affect construction, rental, or sale:
Order a Preliminary Title Report
Contact a title company and request a preliminary title report ($100–$300). This document lists all recorded encumbrances on your property, including deed restrictions, easements, liens, and CC&Rs.
Review Your CC&Rs
If you're in an HOA, review the CC&Rs (Covenants, Conditions & Restrictions) for any provisions limiting construction of additional structures, rental restrictions, or design requirements. Get the most current version from your HOA management company.
Check Your Original Deed
Review the grant deed or warranty deed recorded when you purchased the property. Look for any special conditions, restrictions, or covenants that reference secondary structures or occupancy.
Contact Your City's Planning Department
Ask whether any conditions were placed on your property through previous approvals (conditional use permits, variances, etc.) that might restrict ADU construction.
Consult a Real Estate Attorney
If you find deed restrictions, consult an attorney who specializes in real estate law. They can assess whether the restriction is enforceable, whether state ADU law has preempted it, and what your options are for removal or modification.
How to Remove or Modify Deed Restrictions
If your property has deed restrictions that affect ADU construction, you may have several options:
| Method | How It Works | Cost | Likelihood of Success |
|---|---|---|---|
| State Law Preemption | Argue the restriction conflicts with state ADU law and is therefore unenforceable | $0–$2,000 (letter from attorney) | High (in CA) |
| HOA Amendment | Petition the HOA board to amend CC&Rs to allow ADUs | $0–$500 | Moderate |
| Quiet Title Action | File a lawsuit to have a court declare the restriction invalid | $5,000–$15,000+ | Varies |
| Negotiation with Beneficiary | If the restriction benefits a specific party, negotiate removal | $0–$5,000 | Varies |
| Expiration / Sunset Clause | Some restrictions expire after a set period (e.g., 30–50 years) | $0 | Check dates |
Impact on Financing
Deed restrictions can significantly impact your ability to finance an ADU:
Appraisal Challenges
Lenders require appraisals, and deed restrictions that limit ADU use (such as rental prohibitions) can reduce the appraised value of the ADU, potentially limiting your loan amount.
Rental Income Qualification
If you're using projected ADU rental income to qualify for a loan, deed restrictions that prohibit renting would eliminate this income source from your application.
Title Insurance
Title insurance companies may flag deed restrictions as exceptions, which could create issues with lender requirements. Resolving these before construction avoids delays.
Separate Sale Financing
Under AB 1033, if your city allows separate ADU sale, the ADU can qualify for its own conventional mortgage — potentially opening up better financing terms for buyers.
Don't Assume — Verify
Even if California law has preempted most deed restrictions for ADUs, it's critical to verify your specific situation before investing $100K+ in construction. A $200 title report and a $500 attorney consultation can save you from costly disputes later.
Understand Your ADU Financing Options
Compare HELOCs, construction loans, and other financing methods for your ADU project.
View Financing OptionsFrequently Asked Questions
What is an ADU deed restriction?
An ADU deed restriction is a legal limitation recorded against your property title that restricts how you can use, rent, or sell your ADU. Common deed restrictions include owner-occupancy requirements, short-term rental bans, and prohibitions on selling the ADU separately from the main home.
Does California still require owner-occupancy for ADUs?
No. California eliminated the owner-occupancy requirement for standard ADUs (AB 881/SB 13) effective 2020. However, JADUs (Junior ADUs) still require owner-occupancy. Some cities had imposed their own owner-occupancy requirements before the state preempted them.
Can an HOA prevent me from building an ADU?
No. California law (AB 68/SB 13) prevents HOAs from outright banning ADU construction. While HOAs can impose reasonable architectural and design standards, they cannot make ADU construction unreasonably infeasible or prohibit it entirely.
Can I sell my ADU separately from my main home?
In most cases, no — an ADU cannot be sold independently. However, California's AB 1033 (effective 2024) allows cities to opt in to a program that permits separate ADU sale through a condominium-like arrangement. Check whether your city has adopted this provision.
How do I check if my property has deed restrictions affecting ADU construction?
Order a preliminary title report from a title company ($100–$300) or review your property deed and CC&Rs (Covenants, Conditions & Restrictions). These documents will list any restrictions on construction, land use, or occupancy.
Can deed restrictions be removed or modified?
Sometimes. Deed restrictions can be challenged if they conflict with state ADU law, are outdated (many states have sunset provisions), or are unenforceable. An attorney specializing in real estate law can assess your options. In California, deed restrictions that conflict with state ADU law are generally unenforceable.
Related Glossary Terms
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