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235 27Th Ave

Sea Cliff, SF 94121 1387006 4 units · 2 fl · 1923

This building has a substantial enforcement record over the last seven years, but recent activity points to a low risk of further maintenance problems in the next 12 months. Read the records below before you sign. Ask which issues were resolved, get repair commitments in writing, and inspect the unit yourself.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Sea Cliff — not a forecast
Above average
avg 0.8
5
FewerMore

This building has 5 novs (7y), above the Sea Cliff average of 0.8.

The bar and the rating point different ways because they measure different things: the bar counts DBI violations already on file, the rating forecasts the next 12 months.

Rent & eviction protection

Is 235 27Th Ave rent-controlled?

San Francisco's Rent Ordinance caps rent increases and provides eviction protection for most residential units built before 1979 with 2+ units. Here's how this building scores.

Built before 1979
Built 1923
2 or more units
4 units
Property type
Multi-Family Residential
Zoning
RM1
Likely rent-controlled. Building age and unit count suggest this property falls under San Francisco's Rent Ordinance.

Based on SF Assessor records. Not legal advice — confirm with the SF Rent Board.

Statewide backstop · AB 1482

California Tenant Protection Act of 2019

Even when a building isn't covered by local rent stabilization, the statewide Tenant Protection Act (AB 1482) may still apply. It caps annual rent increases and requires the landlord to state a legal reason to end most tenancies.

15+ years since occupancy
Built 1923
Annual rent increase cap
5% + CPI, max 10%
Just-cause eviction
After 12 months
Local rent control likely takes priority. This building appears to fall under the local ordinance above, which is stronger than AB 1482. Where a local just-cause ordinance applies, its rules govern instead of the state cap.

AB 1482 does not apply to single-family homes and condos unless owned by a corporation, REIT, or an LLC with a corporate member; to owner-occupied duplexes; or to deed-restricted affordable housing. The Act is in effect until January 1, 2030. Not legal advice — see the California landlord–tenant guide.

Building characteristics
Units4
Floors2
Year built1923
Total area3,350 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1387006
Ownership

Registered owner per SF Assessor-Recorder (secured roll).

Mailing address
Po Box 1113 Novato CA 94948
Last sale

Landlord portfolio

Other SF properties this owner holds, with a risk rating for each.

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Augrented Insights
Initial analysis

The two-story, four-unit apartment building at 235 27th Avenue in Sea Cliff, owned by Bernard G. Anker and Zipora F. Anker, was constructed in 1923 and has undergone several significant renovations over its lifetime. Most notably, in late 2019, major improvements were completed in Apartments 1 and 2, including kitchen cabinet replacements, bathroom retile work, and electrical upgrades, with a total renovation cost of approximately $68,816. This work followed a complaint filed in September 2019 regarding window issues in Apartment 1, which documented problems with sealing, mold, and dust, though these complaints were ultimately resolved by August 2020.

The building's history includes several notable violations and inspections, particularly in the early 2000s, when issues such as smoke detector compliance, glazing safety, and plumbing/electrical concerns were documented and subsequently abated. A back stairs/fire escape inspection request was made in 2013, and there was a significant plumbing issue reported in 1999 regarding leaks and sewage problems, though these were resolved quickly. More recent building-related interactions include routine inspections and follow-ups in 2020 regarding construction work, and several 311 calls between 2021 and 2025 primarily related to parking issues and tree maintenance on the property. The most recent building-related communication was a request for building inspection service in February 2024, though this was transferred as it related to private property rather than city jurisdiction.

AI-generated · may contain errors · check the source data tables below

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Risk rating

How 235 27Th Ave's risk score is calculated

We trained a model on 7 years of SF DBI inspection data — notice of violation filings, complaint history, and owner track records. It estimates the probability that DBI inspectors will issue a Notice of Violation at this address in the next 12 months. Lower % = safer.

What the score means for you

Lower risk — safer than most nearby

DBI rarely finds violations here. Strong maintenance history and a clean complaint record.

Typical — about average for the neighborhood

Some past violations or complaints on record. Worth asking the landlord about any open issues before signing.

Higher risk — riskier than most nearby

Elevated violation and complaint history. DBI has found issues here before and is statistically likely to again.

Neighborhood percentile
70thpercentile

Out of 20 buildings in this neighborhood, 6 are predicted to be safer. The band is relative to this neighborhood, so a share of every neighborhood falls in each colour.

RiskiestSafest
Predicted 12-month outcome
80%
No DBI
violation
20%
DBI violation
likely
Model explanation

What's driving this score

The three data points that most influenced this building's risk rating — ranked by the weight the model placed on each one.

Number of units

The number of units affects how the model reads complaint and violation totals — more units means more potential sources.

DBI tenant complaints (past 7 years)

Formal complaints tenants filed with DBI about this building over 7 years.

Building permits, owner's portfolio

Permits pulled across all of this owner's buildings over 7 years.

12-Month risk forecast
Low failure risk 20%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

235 27Th Ave apartment reviews

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On the map

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The story over time

235 27Th Ave event timeline

Violations, complaints, fire incidents, permits, and buyouts — most recent records in order.

2019
Plumbing Permit Nov 22
Apt 1 & 2: replace fixturs in bathroom & kitchen: replace tub & shower valves. install new kitchen sink & g/d.
Complete
Electrical PermitNov 22
Apt 1: kitchen& bathroom remodel. new outlet in kitchen, upgrade subpanels.

See all 10 events

Full history back to 2019 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 235 27Th Ave apartments

13 SF public datasets for this parcel — permits, violations, complaints, fire records, 311 calls, planning records, and buyouts.

Side by side

How 235 27Th Ave compares to the neighborhood

This building against comparable properties in Sea Cliff. Toggle filters to narrow the peer group.

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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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