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

What multifamily in Saratoga looks like

Multifamily is scarce in Saratoga. Most of the city is single-family and hillside land, and the existing income property is a small inventory of apartment and condominium buildings in the R-M districts, units over shops in and near the Village, and single-family homes with accessory dwelling units. What changed recently is capacity: the city created mixed-use districts in 2024, with densities far above anything previously allowed, and adopted a new inclusionary ordinance in 2025. For two to four units, read financing 2-4 unit properties; for larger buildings, see apartment building loans.

Where the zoning allows it

R-M details. The R-M code counts units by net site area, and if the leftover area is at least 90% of what another unit needs, one extra unit may be allowed. Structures cannot sit on slopes over 40%, and the two-story limit can be relaxed in the Village if the building is found compatible. The R-M text lists multifamily dwellings but not duplexes by name, so confirm a two-unit plan with Planning.

Mixed-use tiers. In the M-U districts, maximum density rises at half an acre and again at three-quarters of an acre, so assembling a larger site can raise capacity sharply. Minimum densities also apply.

Inclusionary housing. Article 15-82, adopted by Ordinance 408 on April 2, 2025 and applied to applications from May 2, 2025, covers projects of five or more units, counting ADUs. Rental projects must make at least 15% of units affordable to lower-income households, half of those at very low income; ownership projects must make 15% affordable at moderate income. Off-site alternatives need City Council approval.

ADUs and SB 9. ADUs follow Article 15-56, and SB 9 two-unit projects and lot splits can apply on qualifying single-family lots under state law; confirm the city’s standards. See our ADU investment guide and SB 9 lot split guide.

Rent rules: state law only

The Attorney General’s rent cap page, updated July 16, 2026, places Santa Clara County in All Other Counties, with covered units allowed up to 8.6% for increases from August 1, 2026 through July 31, 2027. Its chart lists only San Jose and Mountain View in this county as having local rent stabilization, so Saratoga rentals follow AB 1482’s cap and just-cause rules for covered units, with exemptions for buildings under 15 years old and qualifying individually owned homes. See our AB 1482 guide and just cause eviction guide.

Saratoga rental property rules

• No short-term rentals. Article 15-42, as rewritten by Ordinance 416 on February 4, 2026, bars renting any residential dwelling or part of one for 30 consecutive days or less, paid or by swap. Advertising is also barred, each day an ad runs is a separate offense, and fines run up to $1,500, $3,000 and $5,000 for repeat violations within a year.
• Platform reporting. Under the state’s 2025 facilitator law as applied in Saratoga, booking platforms must report rental addresses to the city on request.
• Taxes. Paying business license fees or transient occupancy tax does not legalize a prohibited rental.
• Transfer tax. The County’s documentary transfer tax is $0.55 per $500, and Saratoga’s Article 5-15 sets 27.5 cents per $500, administered by the County Recorder and generally credited within the County rate.

Hillsides, older buildings and utilities

Saratoga’s R-M buildings are mostly low-rise wood frame from past decades; review them for seismic retrofit needs, and buildings of three or more units with elevated balconies or walkways need SB 721 balcony inspections. The R-M slope limits (30% average grade under a structure, nothing on slopes over 40%) can cap expansion on sloping sites.

Underwriting a Saratoga multifamily purchase

1. Confirm the district and compute unit capacity from net site area per unit.
2. Model AB 1482 increases at or below 8.6% for covered units; there is no local rent ordinance.
3. Underwrite only long-term rents; stays of 30 days or less are banned.
4. For new projects of five or more units, budget the 15% inclusionary share.
5. Collect leases, the rent roll and estoppel certificates.
6. Rebuild expenses with reassessed taxes, SB 721 and seismic costs in our rental property analysis.

Questions people ask

Sources & notes

1. Saratoga Article 15-17, R-M Districts (GoCodebook)
2. Saratoga Article 15-19, Commercial Districts
3. Saratoga Article 15-21, Mixed-Use Districts
4. Saratoga Article 15-82, Inclusionary Housing
5. Saratoga Article 15-42, Short-Term Rentals
6. Saratoga Article 5-15, Real Property Transfer Tax
7. Santa Clara County Ordinance Code, Division A30, Chapter III
8. California Attorney General, rent caps

Note: We did not read the ADU article (15-56), any SB 9 provisions, the zoning map or the density bonus article. Where the M-U districts are mapped was not confirmed. The building-age description is general.

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

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