West Portal, San Francisco Real Estate & Homes for Sale
West Portal is the San Francisco neighborhood around the western mouth of the Twin Peaks Tunnel, centered on West Portal Avenue, under city rules through SF Planning. Its side streets are mostly 1920s single-family houses, and West Portal station is where the K, L and M Muni Metro lines leave the subway.
Explore West Portal, San Francisco real estate and homes for sale with this local guide. Contact Diamond to discuss your criteria and current property-search options.
| County | San Francisco (City and County) |
|---|---|
| Local government | City and County of San Francisco — SF Planning |
| Housing | Mostly 1920s single-family houses; three-block commercial avenue |
| Hazards to check | No mapped liquefaction zone; landslide zones on nearby steeper slopes |
| Getting around | West Portal station: K, L and M Muni Metro; 48 and 57 buses |
| Local rules | West Portal Avenue NCD (Planning Code 729); zoning changed in 2026 |
West Portal is the neighborhood built around the western mouth of the Twin Peaks Tunnel, centered on West Portal Avenue between Ulloa Street and 15th Avenue. It is subdistrict 4T in the MLS’s District 4. Its side streets are lined mostly with single-family houses from the 1920s, and the avenue itself is a three-block neighborhood commercial district.
That mix of a house neighborhood and a Muni Metro hub is what makes West Portal different from its quieter residence-park neighbors. The sections below cover where it runs, what the houses are, the zoning that changed in 2026 and what to check when you buy or sell.
West Portal homes for sale
West Portal market report
Where the tunnel comes out
The Twin Peaks Tunnel opened to revenue service on February 3, 1918, and its west portal sits at West Portal Avenue and Ulloa Street. The neighborhood takes its name from that opening. West Portal station, just inside the portal, is where the K Ingleside, L Taraval and M Ocean View lines leave the subway; Wikipedia’s neighborhood article puts the ride to Castro station at about seven minutes.
Bus lines at the station include the 48 Quintara/24th Street and the 57 Parkmerced, which begins there and runs to Daly City BART, per published route lists. Check SFMTA for current service, because the route list we used dates from 2022. The West Portal branch of the public library is also in the neighborhood.
The Assessor’s 4T parcels run from Portola Drive and Sloat Boulevard up to Taraval and Vicente streets, and as far west as 19th Avenue. Its streets include Wawona, Ulloa and Vicente streets, 14th and 15th avenues, Claremont Boulevard, Granville and Kensington ways, Madrone and Forest Side avenues, and Allston, Dorchester and Lenox ways.
Neighbors are Forest Hill uphill to the north, Forest Hill Extension to the east, St. Francis Wood across Portola Drive to the south, and the Parkside neighborhoods of District 2, including Inner Parkside, to the west.
West Portal Avenue: rules for the shopping street
The Planning Code defines the West Portal Avenue Neighborhood Commercial District (Section 729) as the avenue from Ulloa Street to 15th Avenue, plus one block of Ulloa from the tunnel entrance to Claremont Boulevard. Its stated aim is to keep the street’s small- to mid-scale character and discourage lot mergers that create large lots.
- Non-residential uses over 2,500 square feet need a conditional use permit.
- Formula retail and new bars need conditional use approval; hotels are not permitted.
- Late-night hours from 2 a.m. to 6 a.m. are not permitted.
- Housing is allowed on every floor, with density set by building form, and projects of 10 or more units must include a share of two- and three-bedroom units.
The code lists several amendments to this section in 2025 and 2026, including one effective January 12, 2026, the date the Family Zoning Plan took effect. Anyone pricing a mixed-use building on the avenue should read the current control table rather than an older appraisal.
The houses behind the avenue
The breakdown shows a house neighborhood with a commercial spine:
Compare the particular property’s lot dimensions, permitted living area, construction history and ownership form using current records. Assessment classifications do not certify legal use or current listing availability.
Planning has found a West Portal Park Historic District eligible for the California Register for its architecture. Its builder was Fernando Nelson, its period of significance runs from about 1916 to 1929, and Planning’s context codes include residence parks and Storybook revival styles. The mapped area lies west of the avenue around Forest Side Avenue and Ulloa Street.
Zoning after January 2026
Planning’s current zoning layer, edited in January 2026 as the Family Zoning Plan took effect, adds RTO-C (Residential Transit Oriented – Commercial) on lots along Ulloa Street west of the station and near Sloat Boulevard and St. Francis Circle, and Inner Taraval Street NCD frontage along the northern edge.
Heights changed too. Planning’s height layer now shows a two-tier designation, 50//85-R-4, at a mid-block point on West Portal Avenue. Ask Planning how the two figures apply to a particular lot before relying on development potential.
The residential blocks also fall inside the Family and Senior Housing Opportunity Special Use District at the point we checked. That SUD can allow two to four units on a qualifying RH lot, but it does not allow demolishing a building that is listed in or eligible for the California Register, which matters inside the West Portal Park district. Our SB 9 guide explains the separate state route.
Ground and hazard checks
Most of West Portal sits on the gentler ground at the foot of the hills. Planning’s seismic hazard layers show no mapped liquefaction zone in the area, and its landslide polygons are on the steeper slopes nearby, including the St. Francis Wood side of Portola Drive and the western edge toward 19th Avenue, rather than on the blocks around the avenue.
Check the parcel’s current mapped hazards and ask DBI which slope-protection, geotechnical, grading, shoring and independent-review requirements apply to the actual project. Older checklists and numerical triggers may differ from the current amended Building Code; allow for any required engineer-stamped documents and review fees before pricing an addition.
Selling a home in West Portal
Buyers here weigh three things against each other: distance to the station and the avenue, the quiet of the side streets, and the condition of a 1920s house. A house two blocks from the station on a level street is a different product from one up the slope on Granville or Kensington Way.
- Document the lower level. Garage-level rooms and baths are common later additions to houses of this era. Pull the permit history and, if a room was never permitted, read our unwarranted units guide before listing.
- Gather system records. Foundation, sewer lateral, roof and electrical work from the past decades answers the first questions an inspector will raise.
- Check historic status. If the house is in the eligible West Portal Park district, say so; it affects what a buyer can add.
- Handle tenancies carefully. Flats and mixed-use buildings on the avenue may have tenants protected by the city’s Rent Ordinance; our San Francisco multifamily guide covers what buyers ask.
- Complete city requirements. The 3R report, energy and water rules and transfer tax are on our San Francisco selling requirements page.
Condominium sellers should add the association documents buyers will expect; our San Francisco condo guide lists them. The market report on this page shows current figures for 4T.
Questions people ask
What are West Portal’s boundaries?
The Assessor’s 4T area runs roughly from Portola Drive and Sloat Boulevard north to Taraval and Vicente streets and west to 19th Avenue, with West Portal Avenue at the center.
Which Muni lines stop at West Portal?
The K Ingleside, L Taraval and M Ocean View stop at West Portal station, and the 48 and 57 buses serve the area per published route lists. Check SFMTA for current schedules.
Is West Portal a historic district?
Not a city-designated one. Planning has found a West Portal Park Historic District, built by Fernando Nelson, eligible for the California Register, which can affect demolition and major exterior changes.
Did the Family Zoning Plan change West Portal?
Yes. Planning’s current maps show RTO-C parcels near the station and St. Francis Circle and a two-tier height designation on the avenue. Check the zoning and height maps for a specific lot.
Are there condos in West Portal?
Use current listings to identify the property type you need, then verify its ownership form, legal unit count and any recorded restrictions.
Thinking about selling a West Portal house or a building on the avenue? Request a home valuation, or see how we prepare listings on our San Francisco selling page. The San Francisco guide covers the rest of the city.
Costs to plan for when buying in West Portal
City transfer tax. West Portal is in the consolidated City and County of San Francisco, so a sale pays one documentary transfer tax at a single rate on the whole price. The rate is $3.40 per $500 above $250,000 and under $1 million, $3.75 per $500 from $1 million to under $5 million, and $11.25 per $500 from $5 million to under $10 million (SF.gov: Transfer tax). A Transfer Tax Affidavit and a Preliminary Change of Ownership Report go in with the deed. Our San Francisco transfer tax guide covers who customarily pays.
Parcel taxes on the bill. For fiscal 2025–26, a West Portal house carries the School Parcel Tax of 2020 ($334.38), SFUSD Teacher Support ($319.34) and the SFUSD Facilities District ($43.00 per single-family parcel, or $21.50 per unit in a multifamily building), plus the City College tax and the $12 Bay Restoration Authority tax (SF Treasurer). The first three have a senior exemption.
The avenue’s buildings. The Treasurer’s list of community benefit districts has entries for Ocean Avenue, Noe Valley and the Castro, but none for West Portal Avenue (SF Treasurer). Still read each line of a store building’s bill for sidewalk, water or garbage liens. A purchase also triggers supplemental bills after closing (SF.gov); see San Francisco property tax.
Permits, ADUs and remodels in West Portal
The Department of Building Inspection issues permits and keeps building records at 49 South Van Ness Avenue. DBI says that from September 14, 2026, most over-the-counter construction permits are available only through its PermitSF portal (SF.gov: DBI). SF Planning reviews zoning, the West Portal NCD controls and historic questions.
The usual West Portal project is the garage level of a 1920s house. Planning runs two ADU programs that can’t be combined. The State program allows a junior ADU of up to 500 square feet inside a single-family house, with owner occupancy required when the JADU shares sanitation with the main residence, and is reviewed ministerially within 60 days of a complete application. The Local program allows converted, attached and detached ADUs and can waive some Planning Code rules for existing buildings, but its units fall under rent control (SF Planning: ADUs). Under the State program, design review is limited to standards that protect properties listed in the California Register. The West Portal Park district has been found eligible, not listed, so ask Planning how that affects a house inside it. Review periods apply to qualifying complete applications and the applicable state pathway, with statutory exceptions; they do not guarantee that a proposed unit is feasible or that a building permit will be issued. Confirm the current requirements with the permit agency and HCD.
A full rebuild is different. Planning Code Section 317 treats removing most of the front and rear facades and floor plates as a demolition. Demolition generally needs Conditional Use approval, and one route around that is closed to buildings found to be historic (Planning Code §317).
Luxury homes and estates in West Portal
West Portal has no estate zoning. Its higher-end homes are the larger detached houses in RH-1(D), the one-family detached district that covers about 697 of the neighborhood’s parcels. They are usually on the curving streets west of the avenue around Forest Side Avenue, Ulloa Street and Kensington and Granville ways. Many are Fernando Nelson houses in the West Portal Park district that Planning has found eligible for the California Register. For a buyer, that eligibility shapes what a remodel can become, because it can block demolition and bring exterior changes under historic review.
For a high-value house here, check the 3R report against the actual rooms, especially finished lower floors (SF.gov: 3R report). Also check foundation and sewer lateral work on a century-old house, and the slope file on the uphill lots near Portola Drive. Get earthquake and homeowners quotes early; see earthquake insurance in California and insuring a high-value home. Our Mills Act guide explains the historic-property tax contract some owners ask about.
Buyers often compare West Portal with St. Francis Wood and Forest Hill. Ask Diamond Real Estate Group which permitted private-marketing options fit your property, goals and the applicable MLS rules. Availability of any particular listing is not guaranteed. Our private sales page explains how that works, and we don’t promise that any particular house is available. See also San Francisco luxury homes.
West Portal real estate: questions people ask
Where are West Portal homes for sale listed?
The listings at the top of this page come from MLS subdistrict 4T. Most are 1920s single-family houses. Condos are few, and mixed-use buildings come up on West Portal Avenue.
Is West Portal in San Francisco County?
Yes. It’s part of the consolidated City and County of San Francisco, which handles zoning, permits, the property tax bill and the transfer tax.
Who issues building permits in West Portal?
San Francisco’s Department of Building Inspection. Most over-the-counter permits move to its PermitSF portal from September 14, 2026. SF Planning reviews zoning and historic questions first.
Can I add a unit to a West Portal house?
Usually yes, through Planning’s State or Local ADU program or the Family and Senior Housing Opportunity SUD described above. Houses in the eligible West Portal Park district can face historic review, so ask Planning before you design.
Parcel-tax amounts labeled 2025–26 are historical examples. Use the current fiscal-year Treasurer information and the parcel’s actual bill for today’s amounts, applicable exemptions and assessments.
Sources for this section
- SF.gov, Transfer tax: https://www.sf.gov/transfer-tax
- SF Treasurer & Tax Collector, Parcel tax exemptions and special assessments: https://sftreasurer.org/property/parcel-tax-exemptions-and-special-assessments
- SF.gov, Learn about supplemental assessments: https://www.sf.gov/information–learn-about-supplemental-assessments
- SF.gov, Department of Building Inspection: https://www.sf.gov/departments–department-building-inspection
- SF Planning, Accessory dwelling units: https://sfplanning.org/accessory-dwelling-units
- San Francisco Planning Code §317 (GoCodebook mirror): https://gocodebook.com/library/us/ca/san-francisco-planning/article-3-zoning-procedures/sec.-317.-loss-of-residential-and-unauthorized-units-through-demolition,-merger,-and-conversion
- SF.gov, Request a Report of Residential Building Record (3R): https://www.sf.gov/request3r
Sources & notes
- DataSF / SF Assessor-Recorder: Assessor Historical Secured Property Tax Rolls, 2025 closed roll (parcel counts by class, build years, median lot and building area, zoning codes and street lists for subdistricts 4A-4T; queried October 2026)
- San Francisco Planning: PlanningData map service (zoning districts, height districts, special use districts, landmarks, National and California Register historic districts, Article 10 districts, seismic hazard zones; queried October 2026)
- San Francisco Planning Code (via GoCodebook): Sec. 729, West Portal Avenue Neighborhood Commercial District
- San Francisco Planning: SF Family Zoning Plan
- San Francisco Planning Code (via GoCodebook): Sec. 249.94, Family and Senior Housing Opportunity Special Use District
- California Government Code section 65852.21 (SB 9 two-unit projects), via California Public Law
- Wikipedia: Twin Peaks Tunnel
- Wikipedia: West Portal, San Francisco
- Wikipedia: List of San Francisco Municipal Railway lines (route termini; page states service as of July 2022)
- SF.gov / Department of Building Inspection: Comply with slope protection requirements for your building project
- San Francisco Association of REALTORS: MLS district map (2001 edition, via Reineck & Reineck)
Last reviewed October 2026 by Matthew Martinez.
Send a property inquiry
Matthew Martinez
Your inquiry is processed through our iHomefinder service. Review the form’s contact choices before submitting. Privacy Policy · Terms of Use.
What is your property in West Portal, San Francisco worth?
Planning a sale or weighing your next move? Request a broker market analysis based on the property, relevant comparable sales and the local setting.
Request your West Portal, San Francisco home and property valuation
