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

What multifamily in Alameda looks like

Alameda’s rental stock is unusual for the Bay Area. Thousands of Victorian and early 20th century houses were split into duplexes, triplexes and flats before 1973. Then, for almost four decades, a voter-adopted charter rule blocked new apartment buildings, which left the island with a large stock of converted older buildings and relatively few mid-century complexes. Today you will find converted Victorians near Park Street and the Gold Coast, 1950s and 1960s courtyard buildings on the West End, and newer apartments at Alameda Point, Alameda Landing and along the estuary. For financing, see financing 2-4 unit properties and apartment building loans.

Measure A in brief. The city’s 2019 Measure A evaluation explains that voters added Article 26 to the City Charter on March 13, 1973, barring new buildings of three or more units. A second measure in March 1991 capped density at one unit per 2,000 square feet. Exceptions came through state law: the 2009 density bonus ordinance, a 2012 multifamily combining zone allowing up to 30 units per acre on listed sites, and ADUs. The city’s Housing Element explainer notes that the 2023–2031 regional housing need for Alameda is 5,353 units and that state law overrides conflicting local rules.

Where the zoning allows it

The current residential districts in Section 30-4 of the Municipal Code allow multifamily in R-2 and above:

In R-1, a second unit added to an existing house or to a lot from an SB 9 lot split cannot exceed 1,000 square feet. The second unit is also subject to conditions on tenant protections, historic resources, Ellis Act withdrawals and flood zones. R-1 lot splits follow Government Code 66411.7. See our SB 9 lot split guide. ADUs are allowed and, per the Measure A evaluation, do not count toward local density limits. See our ADU investment guide. The PD combining district still cites Article 26 density when existing one- and two-family buildings are subdivided, so check charter density on any condo map.

Rent rules: local rent stabilization

Alameda runs its own program under Article XV of Chapter VI of the Municipal Code, Sections 6-58.10 through 6-58.100.

• Annual General Adjustment. The cap is 70% of the CPI change for the 12 months ending April, with a 1% floor and a 5% ceiling, effective each September 1. The Attorney General’s chart and the city’s 2026 notice list it at 2.7% from September 1, 2026 through August 31, 2027.
• Which units. The cap covers units on lots with two or more units built before February 1995. Single-family homes, condos and newer buildings are partially regulated: they fall outside the local cap but stay under just cause, relocation and fee rules, and may be under the state cap of 8.8% for this period. See our AB 1482 guide.
• Limits. One increase per 12 months, none in the first year of a tenancy. Banked increases are capped at 8%, cannot be used in back-to-back years and can be used no more than three times per tenancy.
• Just cause and relocation. Section 6-58.80 lists the allowed grounds for ending a tenancy. An owner move-in requires a natural person with at least 50% ownership who moves in within 60 days. Relocation payments are owed for no-fault terminations and for temporary displacement, with amounts set by Council resolution and higher payments for seniors, disabled tenants and families with children. See our just cause eviction guide.
• Capital improvements. Pass-throughs need a plan of at least $10,000 and $1,000 per unit, amortized over 15 years, capped at 5% of rent (8% with the annual increase). Properties of 25 or more units are not eligible.

Alameda rental property rules

• Registration and fees. Every covered unit must be registered. For FY 2026–27, the city’s notice sets the program fee at $176 per fully regulated unit and $118 per partially regulated unit. Registration and fees are due August 31, 2026. A landlord with unpaid fees or unregistered units cannot raise rent.
• New owners. A change of ownership must be reported within 30 days of closing, and Section 6-58.30 imposes disclosure duties and successor liability on buyers.
• Filings. Copies of notices with banked increases must be filed with the program within three days.
• Short stays. Rentals of 30 days or less are exempt from the rent ordinance but pay the city’s 14% transient occupancy tax under Section 3-61.

Soft-story buildings and older stock

Alameda’s soft-story ordinance, Sections 13-80.1 to 13-80.16, covers wood-frame buildings of five or more units permitted before December 17, 1985, with parking or open space at ground level. Owners on the city inventory must install an earthquake gas shutoff valve within 60 days of notice. They must submit an engineer’s seismic analysis and post a tenant warning sign within 18 months. The ordinance itself does not require a retrofit, but most owners complete one to get off the list, and retrofit permit fees are waived if issued within 18 months. See our seismic retrofit guide. Buildings of three or more units with elevated balconies also need SB 721 inspections.

Underwriting an Alameda multifamily purchase

1. Classify every unit as fully or partially regulated, and pull its registration status and fee history from the Rent Program.
2. Model increases at the Annual General Adjustment, 2.7% through August 2027, not the state cap.
3. Check for banked increases and pending capital improvement plans, and confirm all filed notices.
4. Check the soft-story inventory for five-plus unit buildings and get the engineer’s report or retrofit permit.
5. Confirm the zoning district and whether an MF or PD overlay applies before counting added units.
6. Get estoppel certificates and add the $12 per $1,000 city transfer tax to our rental property analysis.

Questions people ask

Sources & notes

1. California Attorney General, Rent Caps
2. Alameda Municipal Code, Chapter VI Article XV, Rent Control, Evictions and Relocation (GoCodebook)
3. City of Alameda Rent Program notices: 2026 Annual General Adjustment and FY 2026–27 registration (GoCodebook snapshots)
4. Alameda Municipal Code Section 30-4, District Uses and Regulations
5. Alameda soft-story ordinance, Chapter XIII Article XX
6. City of Alameda, Measure A Evaluation (December 2019)
7. City of Alameda, Why is Alameda making plans to add more housing? (April 2022)
8. Alameda Municipal Code Section 3-61, Transient Occupancy Tax

Note: Relocation dollar amounts are set by City Council resolution; get the current figures from the Rent Program.

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

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