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474 27Th Ave

Central Richmond, SF 94121 1458024A 7 units · 2 fl · 1964

Nothing on record for this building in the last seven years. Our model still sees a moderate chance of maintenance problems in the next 12 months, from the owner's wider portfolio and the surrounding area rather than from anything recorded here. No public enforcement record to go on. Walk the building, ask the current tenants how repairs get handled, and get any promises in writing.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Central Richmond — not a forecast
At or below average
avg 0.5
0
FewerMore

This building has 0 novs (7y), at or below the Central Richmond average of 0.5.

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 474 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 1964
2 or more units
7 units
Property type
Multi-Family Residential
Zoning
RH2
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 1964
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
Units7
Floors2
Year built1964
Total area4,896 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1458024A
Ownership

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

Mailing address
Ok Soon Key Trustee 474 27Th Avenue San Francisco CA 94121
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 7-unit, 2-story multi-family residential building at 474 27th Avenue in San Francisco's Central Richmond neighborhood, constructed in 1964 and currently owned by the Ok Soon Key Revoc Trust, has undergone several significant infrastructure improvements over the past decade. Most notably, the building completed a mandatory seismic retrofit as a Tier 3 soft-story property in 2018, which included a substantial investment of $90,000 to meet current safety standards. The building has received recent attention to its roof infrastructure, with work done in 2020 completing earlier projects from 2017-2018 related to both reroofing and street space usage. Historical maintenance records show earlier roofing work in 1997 and stucco removal in 1984.

The building's history includes some notable concerns that were addressed through official processes. In 2003, multiple fire safety violations were documented and subsequently resolved by January 2004, including issues with fire proofing, egress obstructions, and combustible storage. In 2006, there were complaints about window insulation and heating system issues, as well as exposed electrical wires, though these were marked as resolved by 2009. The property has experienced typical urban maintenance issues as documented in 311 calls, including recent sidewalk parking violations (2021), graffiti (2019), and general cleaning needs in the surrounding area, all of which were addressed through normal city channels. The most recent documented fire incident was a false alarm, with no injuries reported.

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

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Risk rating

How 474 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
15thpercentile

Out of 2250 buildings in this neighborhood, 1912 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
66%
No DBI
violation
34%
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.

Estimated permit spend (past 7 years)

Dollar value of permits pulled at this address — large recent spend can signal deferred-maintenance catch-up.

Owner's portfolio size

Number of SF parcels this owner is registered on — larger portfolios have distinct risk patterns.

12-Month risk forecast
Moderate failure risk 34%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

474 27Th Ave apartment reviews

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On the map

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8 found
The story over time

474 27Th Ave event timeline

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

2026
Building Permit May 01
Re-roofing (no hotworks)
$35,000 · Complete
Plumbing PermitApr 10
Bath kitchen remodels, new laundry 7 units 2nd 3rd fl

See all 12 events

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

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Every record we have

Full data for 474 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 474 27Th Ave compares to the neighborhood

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