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1-9 27Th St

Bernal Heights, SF 94110 6595001 4 units · 2 fl · 1924

This building has more problems than most buildings in this neighborhood. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.

NOVs (7y) vs. neighborhood
Compared to a typical building in Bernal Heights
At or below average
avg 1.2
0
FewerMore

This building has 0 novs (7y), at or below the Bernal Heights average of 1.2.

Rent & eviction protection

Is 1-9 27Th St 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 1924
2 or more units
4 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
Units4
Floors2
Year built1924
Total area3,764 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot6595001
Ownership

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

Owner name
Chaudoir Family Tr
Mailing address
Alexander G & Nancy Chaudoi 2984 Mission St San Francisco CA 94110
Last sale
020501

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.

7 27th St, San Francisco, CA 94110
1 27th St, San Francisco, CA 94110
9 27th St, San Francisco, CA 94110
3 27th St, San Francisco, CA 94110
5 27th St, San Francisco, CA 94110
Augrented Insights
Initial analysis

The 4-unit, 2-story multi-family residential building at 1-9 27th Street in Bernal Heights, owned by the Chaudoir Family Trust, has a documented history dating back to its construction in 1924. The building has undergone several significant maintenance works over the years, including complete reroofing projects in 2017 (costing $27,000) and in 1993. A notable pattern of violations and complaints emerged between 1998 and 2008, with multiple fire safety issues documented, including problems with heating systems, lead paint hazards, and various fire safety equipment deficiencies between 2000 and 2007. More recently, there have been recurring fire code violations every year from 2018 through 2024, indicating ongoing fire safety concerns that require attention. The building's maintenance record shows some historical issues with stair repairs (in 1986) and safety compliance matters, though many of these violations were eventually abated. Recent 311 calls (2022-2024) primarily concern street/sidewalk issues, parking violations, and debris removal, which are more related to the neighborhood environment than the building's internal conditions. The property has also been associated with a nearby commercial location, as evidenced by planning records showing a former Burger King location and T-Mobile facility installation. While historical violations suggest past safety and maintenance challenges, the resolution of most older violations indicates improvements over time, though the recent pattern of fire code violations suggests ongoing oversight is necessary.

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

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Risk rating

How 1-9 27Th St'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
24th percentile

Out of 1276 buildings in this neighborhood, 970 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
60%
No DBI
violation
40%
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.

Neighborhood location

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

Neighborhood (ZIP code)

The ZIP code captures local housing market and enforcement patterns that affect all buildings in the area.

12-Month severity forecast
No violation 51.5%
Moderate concern 18.7%
Severe concern 29.8%
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

1-9 27Th St event timeline

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

2025
311 Request May 15
Blocking driveway cite only
Parking Enforcement

See all 2 events

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

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Every record we have

Full data for 1-9 27Th St 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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