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1675-1677 12Th Ave

Inner Sunset, SF 94122 1931013A 2 units · 2 fl · 1948

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 Inner Sunset — not a forecast
At or below average
avg 1.1
0
FewerMore

This building has 0 novs (7y), at or below the Inner Sunset average of 1.1.

Rent & eviction protection

Is 1675-1677 12Th 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 1948
2 or more units
2 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 1948
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
Units2
Floors2
Year built1948
Total area3,151 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1931013A
Ownership

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

Owner name
Mailing address
1677 12th Ave San Francisco CA 94122
Last sale
July 23, 2004

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.

1675 12th Ave, San Francisco, CA 94122
1677 12th Ave, San Francisco, CA 94122
Augrented Insights
Initial analysis

The two-unit residential building at 1675-1677 12th Avenue in San Francisco's Inner Sunset neighborhood is a two-story flats and duplex structure built in 1948 and currently owned by Carmen Lam. The building has undergone several significant improvements over the past few decades, with the most recent major work being a complete reroofing project in 2021 costing $24,080, which was successfully completed. In 2012, substantial renovations were carried out at the ground floor, including the addition of a new bedroom and half bath (with associated plumbing and electrical work) costing $25,000, along with electrical system modifications to connect circuits between units #1675 and #1677. The building's maintenance history shows attention to roofing issues, with previous reroofing projects documented in 1991, 2002 (though expired), and electrical upgrades in 2012 including the installation of lights, switches, receptacles, and a fan.

The property has experienced some minor incidents in recent years, including three 311 service requests - two related to hazardous materials in 2018 (both resolved) and one parking enforcement call in 2022 regarding a blocking vehicle, though the responding officer was unable to locate the reported vehicle. The building's documented history suggests regular maintenance and upgrading of essential systems, particularly focusing on structural elements like the roof and functional improvements to the ground floor living space. The most recent major improvement, the 2021 roofing work, represents a significant investment in the building's maintenance and durability.

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

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Risk rating

How 1675-1677 12Th 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
93rdpercentile

Out of 1493 buildings in this neighborhood, 105 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
91%
No DBI
violation
9%
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.

Neighborhood location

Precise location is a proxy for neighborhood-level risk — some SF blocks have systematically higher DBI activity.

Building permits, owner's portfolio

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

Building age

Older buildings tend to have more maintenance challenges; SF's pre-1906 earthquake housing stock carries distinct risk.

12-Month risk forecast
Low failure risk 9%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

1675-1677 12Th Ave apartment reviews

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On the map

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The story over time

1675-1677 12Th Ave event timeline

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

2021
Building Permit Sep 28
Reroofing
$24,080 · Complete

See all 1 events

Full history back to 2021 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1675-1677 12Th Ave apartments

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

Side by side

How 1675-1677 12Th Ave compares to the neighborhood

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

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