Multifamily and Duplex Properties for Sale in Lafayette: Zoning and Rent Rules

What multifamily in Lafayette looks like

Lafayette is mostly single-family, so its rental buildings sit close together. Most are near downtown along Mt. Diablo Boulevard, Moraga Road and the streets around the BART station. Expect:

• Duplexes and small two-family lots in the D-1 district near the central area
• Older garden apartments and townhouse-style buildings in the M-R-A and M-R-B districts
• Newer mixed-use buildings with apartments over shops in the downtown retail districts
• Single-family homes with ADUs, and lots that may qualify for SB 9 projects

Buildings over four units are uncommon and tend to trade rarely, so many buyers start with a duplex or a small 2-4 unit property. See financing 2-4 unit properties and apartment building loans.

Where the zoning allows it

Lafayette’s multiple-family districts are in Chapter 6-8 of Title 6. Several downtown commercial districts in Chapter 6-9 also allow housing.

Parking. M-R-A asks for 1.0 space per one-bedroom, 1.2 per two-bedroom and 1.5 for three or more bedrooms. M-R-B asks for 1.2, 1.5 and 2.0. Both add one guest space per five units and at least one covered space per unit, so older buildings may not meet today’s standard if you plan to add units.

Open space. M-R-B requires that half of each lot stay free of buildings and paving, and that each unit have a patio or balcony of at least 100 sq ft. That makes adding units to an M-R-B site harder than the density number alone suggests.

Inclusionary housing. Under Chapter 6-37, adopted again by Ordinance 697 in July 2025, projects that add two or more units must make 15% of them affordable. For rentals that means 9% low income and 6% very low income, kept affordable for at least 55 years. Projects of two to six units may pay an in-lieu fee instead.

SB 9. Lafayette rewrote its SB 9 rules in Chapter 6-38 through Ordinance 697. They apply only in single-family districts, and parcels in high or very high fire hazard zones are excluded, which rules out many hillside lots. A lot split applicant must sign an affidavit to live on the property for three years. Deed restrictions bar rentals of 30 days or less. Units occupied by a tenant in the past three years cannot be demolished or altered. See our SB 9 lot split guide and ADU investment guide. We did not review Lafayette’s local ADU text.

Rent rules: state law only

Lafayette is not on the California Attorney General’s list of cities with local rent caps. In Contra Costa County that list names only Antioch, Concord and Richmond. Covered Lafayette units follow the Tenant Protection Act cap for the San Francisco Area: 6.3% for August 1, 2025 through July 31, 2026, and 8.8% for August 1, 2026 through July 31, 2027. Single-family homes and condos owned by individuals can be exempt if the lease carries the required notice, and buildings newer than 15 years are exempt. See our AB 1482 guide.

State just cause rules also apply once a tenant has stayed 12 months, with one month’s rent as relocation help for no-fault terminations. We did not find a local just cause or rent ordinance in the Title 8 chapter list, but confirm that with the city before you rely on it. See our just cause eviction guide.

Lafayette rental property rules

Condo conversions. Chapter 6-32 makes converting apartments to condos difficult. It sets these rules:

• Eligible buildings. Only buildings of 20 or fewer units in excellent condition can convert. Units must be townhouse-style with a ground floor, a separate outside entrance and a patio or balcony.
• Annual cap. The city approves no more than 12 units a year, first come, first served.
• Tenant rights. Tenants get a right to buy their unit and at least 180 days to move. Seniors, disabled tenants and families with school-age children get six more months.
• Costs. Tenants who move after notice get moving costs of 1.5 times monthly rent, and rents are frozen once the tentative map is filed.

Do not underwrite a Lafayette apartment purchase on a condo exit plan.

Short-term rentals. We found no short-term rental chapter in Title 4 of the code. SB 9 units cannot be rented for 30 days or less under their deed restriction. Ask Planning how it treats short stays in other housing.

Design review. M-R-A and M-R-B require design review for new construction and for remodels visible from public property. Exterior work on an apartment building can therefore take longer than a building permit alone.

Older buildings, hillsides and utilities

Much of Lafayette’s apartment stock dates from the 1960s to 1980s, with wood frames, tuck-under parking and exterior stairs. Buildings of three or more units with elevated balconies or walkways need SB 721 inspections. We did not find a mandatory Lafayette soft-story program, but a seismic retrofit review is still prudent for buildings over open parking. Title 6 also has hillside development, tree protection and flood damage chapters, which can affect any expansion. Sewer and water come from outside districts, so check lateral and connection rules with them.

Underwriting a Lafayette multifamily purchase

1. Confirm the district (D-1, M-R-A, M-R-B or a downtown commercial district) and whether existing units and parking meet it.
2. Check each unit’s AB 1482 status and model increases at no more than the state cap.
3. Get estoppel certificates and copies of any no-fault notices and relocation payments.
4. Before planning extra units, test them against open space and coverage limits and the 15% inclusionary rule.
5. Check fire hazard zone status before assuming an SB 9 split on a single-family rental.
6. Add reassessed property tax, SB 721 work and seismic items to your rental property analysis.

Questions people ask

Sources & notes

1. Lafayette Title 6, Chapter 6-8: D-1, M-R-A, M-R-B (GoCodebook)
2. Chapter 6-9 RB-60, RB and SRB
3. Chapter 6-32 Condominium Conversions, Chapter 6-37 Inclusionary Housing, Chapter 6-38 SB 9
4. Title 8 chapter list
5. California Attorney General, Rent Caps

Note: Articles 4 to 6 of Chapter 6-8, the senior housing overlay, local ADU rules and the in-lieu fee amount were not reviewed. Confirm them with Lafayette Planning.

General information, not legal or tax advice. Last reviewed October 2026 by Matthew Martinez.

Related: Lafayette real estate guide · Commercial real estate in Lafayette · Multifamily investing guide · Investor services