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

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What multifamily in Monterey looks like

Monterey’s income property is mostly older and small-scale. There are duplexes and triplexes in New Monterey and Oak Grove, garden apartments near downtown and along Lighthouse Avenue and Pacific Street, and apartments above shops downtown and on Cannery Row. Larger complexes sit off Munras Avenue and in the east side neighborhoods near Del Monte. Many houses also have an ADU or a legal second unit. For financing, see financing 2-4 unit properties and apartment building loans.

Two things set Monterey apart. The City requires most landlords to register every rental unit in an inventory each year. And water, not zoning, often decides whether you can add units.

Where the zoning allows it

The City’s residential districts are in Chapter 38, Article 5. A use not listed for a district is prohibited.

District	Two to three units	Four or more units	Density and height
R-E Residential Estate / R-1 Single-Family	Not listed (SB 9 and ADUs only)	Not listed	Up to 8 units/acre. R-1: 2 stories, 25 ft
R-2 Low-Density Multifamily (§ 38-24)	Permitted	Use permit	Up to 14.5 units/acre, 3,000 sq ft of lot per unit. 2 stories, 25 ft. 35% coverage
R-3 Medium-Density Multifamily (§ 38-25)	Permitted	Use permit	Up to 30 units/acre
C-1, C-2, C-3, CO and CR Commercial	Permitted	Use permit	Mixed use needs a use permit, with commercial on the street frontage
MF Multifamily Residential overlay (Art. 16C)	—	Administrative approval if 20% affordable	20 to 60 units/acre. 45 ft

Small R-2 lots. On an R-2 lot of 4,999 square feet or less, only one home is allowed. On a lot that small, a second unit usually means an ADU rather than a duplex.

The MF overlay. The Multifamily Residential overlay shows on the map as "MF" added to the base zone. It covers three areas: MF1 on the south side of Garden Road, MF2 around Pacific, Munras and Cass streets, and MF3 on Aguajito Road. It sets a minimum of 20 and a maximum of 60 units per acre and a 45-foot height limit. Projects with at least 20% of units affordable to lower-income households qualify for administrative approval. Ordinance 3688 (2024) and Ordinance 3722 (2026) are the latest amendments. Chapter 38 also has a separate overlay for Housing Element sites (Article 16E).

SB 9 and ADUs. Monterey’s two-unit rules for single-family districts are in Article 5A. ADUs are permitted in the commercial districts’ use tables as well as in residential zones. See our SB 9 lot split guide and ADU investment guide.

Rent rules: state law only

Monterey has no local rent cap. The Attorney General’s rent cap page, updated July 16, 2026, puts Monterey County in the All Other Counties group. Covered units may be raised up to 8.6% for increases from August 1, 2026 through July 31, 2027. Salinas is the only Monterey County city on the AG’s list of local rent ordinances. Covered Monterey tenancies also fall under the state’s just cause rules. See our AB 1482 guide and just cause eviction guide.

Monterey rental property rules

The Rental Inventory ordinance in Chapter 8, Article 2 is Monterey’s main landlord rule. It took effect January 1, 2024 under Ordinance 3671 and was amended by Ordinance 3700 in 2025.

What it covers. Rental units include houses, ADUs and JADUs, condos, mobile homes and rented rooms. Visitor lodging, group and transitional housing, and bed and breakfasts are excluded.
What you report. Owner and manager contacts, year built, unit count, bedrooms, bathrooms, square footage, occupancy, current rent, what the rent includes, and whether the tenant has a voucher. Rent increases and ownership changes must be reported within 30 days.
Annual renewal. Registration expires each June 30, with payment due July 1. A 20% penalty starts August 15, plus 10% a month, capped at 50%.
Fees. A per-unit fee is set by Council resolution and may not be passed on to tenants.
Exemptions. The article lists exemptions, including subsidized units, mobile home spaces, ADUs on owner-occupied lots, and owners of three or fewer units in the City. It also says earlier exemptions expired June 30, 2025, so confirm with the City whether yours still applies.
Eviction risk. Failing to register or pay is a complete defense to an unlawful detainer the landlord brings.
Sunset. The article repeals itself January 1, 2029 unless the Council renews it.

Water, coastal permits and older buildings

Water. Adding an ADU, converting a duplex to a triplex or adding a bathroom can need a permit from the Monterey Peninsula Water Management District, which must sign off before a meter is set or use increases. Cal-Am’s service area is also under State Water Board Order WR 2009-0060. Condition 2 of that order restricts new connections and some added use at existing addresses. MPWMD asked the Board in October 2025 to lift it, and a hearing ran in 2026, per the Board’s hearing notice. Confirm whether the Board has ruled before counting on new units.

Coastal zone. Parcels near Cannery Row, the harbor and Del Monte Beach may need coastal development permits. The City’s coastal program page says its implementation plan was never certified, so check who issues the permit.

Building condition. Much of the stock is older wood frame on slopes, so a seismic retrofit review is worthwhile. Buildings of three or more units with elevated decks or stairs need SB 721 balcony inspections.

Transfer tax. Monterey’s Chapter 35, Article 4 sets a city transfer tax of $0.275 per $500. Confirm the total with escrow.

Underwriting a Monterey multifamily purchase

Confirm the zone, lot size and unit count. Small R-2 lots allow one home, and four or more units need a use permit, so check that every unit is legal.
Get the seller’s Rental Inventory registrations and fee receipts for every unit.
Classify each unit under AB 1482 and model increases at or below 8.6% for covered units.
Get MPWMD’s water records for the property before planning ADUs or added units.
Collect leases, the rent roll and estoppel certificates, and compare reported rents to the inventory.
Rebuild expenses with reassessed taxes, registration fees and deck inspections in our rental property analysis.

Questions people ask

Does Monterey have rent control?

No. AB 1482 applies to covered units, capped at 8.6% for increases from August 1, 2026.

Do I have to register my Monterey rental?

Most landlords do, under the Rental Inventory ordinance. Registration renews each year by July 1. Confirm whether any exemption applies to you.

What happens if I don’t register?

The City can cite you, and failure to register or pay is a complete defense to an eviction you file.

Can I build a duplex on a small lot in New Monterey?

Not on an R-2 lot of 4,999 square feet or less, which allows one home. An ADU may still be possible.

Where can I build apartments at high density?

In the MF overlay areas on Garden Road, the Pacific-Munras-Cass area and Aguajito Road, at 20 to 60 units per acre.

Can I add an ADU without water?

No. MPWMD must issue a water permit first, and Cal-Am connections are limited by a state order. Confirm the current status.

Sources & notes

Note: R-3 height and coverage, the Article 5A and 16E text, the current inventory fee amount and the TOT rate were not reviewed.

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

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