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1277-1279 12Th Ave

Inner Sunset, SF 94122 1738017 2 units · 2 fl · 1908

This building has a higher-than-average number of open problems nearby. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.

NOVs (7y) vs. neighborhood
Compared to a typical building in Inner Sunset
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 1277-1279 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 1908
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.

Building characteristics
Units2
Floors2
Year built1908
Total area2,292 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1738017
Ownership

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

Owner name
Leyden Janette M
Mailing address
1279 12th Ave San Francisco CA 94122
Last sale
030713

Landlord portfolio

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

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Multiple entrances & addresses

Included addresses

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

1279 12th Ave, San Francisco, CA 94122
1277 12th Ave, San Francisco, CA 94122
Augrented Insights
Initial analysis

The property at 1277-1279 12th Avenue in San Francisco's Inner Sunset neighborhood is a two-unit, two-story multi-family residential building constructed in 1908, currently owned by Janette M. Leyden. The building underwent extensive renovations in 2011, with significant improvements to both units, including a major interior renovation on the third floor ($104,000) that involved bathroom relocations, kitchen remodeling, and ceiling and roof repairs on unit 1277. The first floor was similarly upgraded, transforming spaces into a family room and exercise room, relocating bathrooms, and repairing footings and exterior stairs, with this work totaling approximately $40,000. The renovation project included comprehensive updates to plumbing systems, electrical infrastructure (including new 200-amp service installations), and interior finishes across both units, with a total investment exceeding $200,000.

More recent history shows a few maintenance and infrastructure issues, including a sewage backup incident in December 2021 and a missing side sewer vent cover in January 2023, though both issues were resolved. The property has experienced some recurring parking issues, with multiple complaints about blocked driveways recorded between 2021 and 2023, though many of these cases were either resolved or found to be invalid upon investigation. A recent building complaint filed in November 2023 regarding broken window frames is currently listed as not active. The property has also required repairs to its curb and ramp facilities, with documentation showing both damaged sidewalks and missing curb wings requiring attention. While the building's major systems received substantial upgrading during the 2011 renovation, the property has experienced periodic maintenance issues in recent years that have required attention, particularly regarding sewer infrastructure and access concerns.

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

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Risk rating

How 1277-1279 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

Grade A–B — Low risk

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

Grade C — Moderate risk

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

Grade D–F — High risk

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

Neighborhood percentile
31th percentile

Out of 1493 buildings in this neighborhood, 1030 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
70%
No DBI
violation
30%
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.

DBI tenant complaints (past 7 years)

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

Building age

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

Permit rate, owner's portfolio

Per-building permit rate across the owner's portfolio.

12-Month severity forecast
No violation 58.0%
Moderate concern 33.1%
Severe concern 9.0%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

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The story over time

1277-1279 12Th Ave event timeline

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

2025
311 Request Sep 23
Parking on sidewalk
Parking Enforcement

See all 3 events

Full history back to 2023 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1277-1279 12Th Ave apartments

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

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

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