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131-133 Duncan St

Noe Valley, SF 94110 6599031 2 units · 2 fl · 1912

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 Noe Valley — not a forecast
At or below average
avg 1.2
0
FewerMore

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

Rent & eviction protection

Is 131-133 Duncan 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 1912
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 1912
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 built1912
Total area2,200 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot6599031
Ownership

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

Mailing address
Hall William H & Carla M Tr 131 Duncan St San Francisco CA 94110
Last sale
May 01, 1992

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.

131 Duncan St, San Francisco, CA 94110
133 Duncan St, San Francisco, CA 94110
Augrented Insights
Initial analysis

The two-unit residential building at 131-133 Duncan Street in Noe Valley is a 1912 flats and duplex structure currently owned by the Hatley-hall Family Trust. The property has undergone several significant improvements over the past decade, with the most recent work being a bathroom remodel scheduled for late 2024 at an estimated cost of $28,192. Major upgrades were completed in 2013 during a condo conversion process (report #7190), including the installation of two new high-efficiency furnaces with ductwork, comprehensive window and door replacements (19 windows and 1 door), and garage modifications including storage room construction and concrete slab replacement. The building received a new roof in 2018, and more recent plumbing updates in 2022 included kitchen and laundry improvements for both units.

The property's maintenance history shows regular upkeep, with particular attention paid to energy efficiency and safety improvements. The 2013 renovations included significant HVAC upgrades, including the replacement of old furnaces and associated ductwork. The upcoming bathroom remodel, currently permitted as of December 2024, focuses on interior updates. While the building has experienced typical neighborhood issues such as reports of abandoned vehicles (in 2015 and 2018), these were external to the property and were promptly addressed by city services. The street space permit from 2013 and various plumbing and electrical permits over the years indicate ongoing attention to building systems and infrastructure. The condo conversion process was officially completed and approved in 2013, transitioning the property to its current ownership structure.

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

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Risk rating

How 131-133 Duncan 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
65thpercentile

Out of 1879 buildings in this neighborhood, 658 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
84%
No DBI
violation
16%
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.

Neighborhood (ZIP code)

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

Building permits, owner's portfolio

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

12-Month risk forecast
Low failure risk 16%
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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The story over time

131-133 Duncan St event timeline

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

2024
Plumbing Permit Dec 04
Bathroom remodel to install (1) shower pan
Complete
Electrical PermitDec 04
Bathroom remodel

See all 5 events

Full history back to 2022 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 131-133 Duncan St apartments

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

Side by side

How 131-133 Duncan St compares to the neighborhood

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