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309-311 Chestnut St

Telegraph Hill, SF 94133 0062030 3 units · 2 fl · 1915

A handful of records on file over the last seven years, and our model puts this building at a low risk of further maintenance problems in the next 12 months. A few records worth reading before you sign. Check whether they were closed out, and ask what was actually fixed.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Telegraph Hill — not a forecast
At or below average
avg 1.2
0
FewerMore

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

Rent & eviction protection

Is 309-311 Chestnut 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 1915
2 or more units
3 units
Property type
Multi-Family Residential
Zoning
RH3
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 1915
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
Units3
Floors2
Year built1915
Total area2,420 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot0062030
Ownership

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

Mailing address
Margaret Thompson 309 Chestnut St San Francisco CA 94133
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.

311 Chestnut St, San Francisco, CA 94133
309 Chestnut St, San Francisco, CA 94133
Augrented Insights
Initial analysis

The Thompson Revocable Trust owns this two-story, multi-family residential building located at 309-311 Chestnut Street in Telegraph Hill, which contains three units and was constructed in 1915. The building has undergone significant improvements in recent years, with the most recent major work being the replacement of the water service line from the meter to the garage with copper piping completed in August 2023. During 2018-2019, substantial structural and modernization work was performed, including a ground floor remodel costing $60,000, bathroom and kitchen renovations, and electrical upgrades. A notable addition was completed in 2017, converting a second-floor deck into a family room, which included new lighting, outlets, and a 60-amp sub-panel installation. The building's systems have been regularly maintained, with a new furnace installation and plumbing updates completed in 2019.

The property has a history of routine housing inspections, with the most significant findings occurring during a November 2015 inspection that identified several fire safety concerns, including the need for fire extinguisher updates and the provision of smoke alarm documentation; these violations were all promptly abated by December 2015. The building has undergone multiple unit-specific improvements over the years, including bathroom remodels in Unit #309 (2011) and kitchen remodeling work completed in 2006. More recent maintenance issues have primarily involved external factors affecting the property, such as sidewalk tree root damage (2024), though these are currently being addressed through appropriate city channels. The building's historical records show consistent attention to maintenance and upgrades, with no current active violations or complaints.

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

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Risk rating

How 309-311 Chestnut 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

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 684 buildings in this neighborhood, 48 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
95%
No DBI
violation
5%
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.

Building age

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

Estimated permit spend (past 7 years)

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

Construction spend, owner's portfolio

Estimated permit value across all of this owner's buildings.

12-Month risk forecast
Low failure risk 5%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

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On the map

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8 found
The story over time

309-311 Chestnut St event timeline

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

2026
311 Request Apr 02
Sewage back-up discharge
from side sewer vent

See all 4 events

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

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Every record we have

Full data for 309-311 Chestnut St apartments

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

Side by side

How 309-311 Chestnut St compares to the neighborhood

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