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391-397 27Th Ave

Central Richmond, SF 94121 1406018 4 units · 2 fl · 1923

Nothing on record for this building in the last seven years, and our model puts it at a low risk of maintenance problems over the next 12 months. 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 391-397 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 area4,600 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1406018
Ownership

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

Mailing address
Edward & Linda Demartini Tt 558 Holyoke St San Francisco CA 94134
Last sale

Landlord portfolio

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

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Multiple entrances & addresses

Included addresses

All street addresses sharing this blocklot that are covered by this report.

393 27th Ave, San Francisco, CA 94121
397 27th Ave, San Francisco, CA 94121
395 27th Ave, San Francisco, CA 94121
391 27th Ave, San Francisco, CA 94121
Augrented Insights
Initial analysis

The multi-family residential building at 391-397 27th Avenue in San Francisco's Central Richmond neighborhood is a two-story, four-unit apartment building constructed in 1923, currently owned by Edward J & Linda R Demartin. The building has undergone several significant maintenance and upgrade projects over the years, with the most recent major work being multiple parking enforcement requests in 2024 for blocked driveways. Some of the notable improvements include a complete reroofing project in 2009 costing $21,000, comprehensive furnace system upgrades in 2008-2009 involving new furnaces, ductwork, and related infrastructure ($6,000) including electrical work, and a sewer line replacement in 2012.

The building has experienced a few maintenance issues affecting resident comfort, most notably a mold incident in 2012 linked to unresolved water leakage from the roof and bathroom, though this was later abated. Historical records show the building underwent routine housing inspections in 2001 and 2008, and has had multiple parking-related incidents in recent years, with several citations issued for blocking driveways between 2024-2025. While the building has maintained basic compliance with housing standards, the uneven pattern of maintenance work and the recent cluster of parking enforcement issues may be of interest to current and prospective tenants.

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

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Risk rating

How 391-397 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
26thpercentile

Out of 2250 buildings in this neighborhood, 1665 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
77%
No DBI
violation
23%
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
Low failure risk 23%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

391-397 27Th Ave apartment reviews

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On the map

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The story over time

391-397 27Th Ave event timeline

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

2026
311 Request Jun 08
Garbage and debris
furniture
311 RequestApr 23
Blocking driveway cite only

See all 6 events

Full history back to 2025 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 391-397 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 391-397 27Th Ave compares to the neighborhood

This building against comparable properties in Central Richmond. 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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