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955 Duncan St

Diamond Heights, SF 94131 7513055 2 units · 1 fl · 1969

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 Diamond Heights — not a forecast
At or below average
avg 0.0
0
FewerMore

This building has 0 novs (7y), at or below the Diamond Heights average of 0.0.

This building's 13% risk is low in absolute terms; it rates higher-risk here only because buildings in Diamond Heights generally score better. The colour is relative to the neighborhood, the percentage is not.

The bar and the rating point different ways because they measure different things: the bar counts DBI violations already on file, the rating forecasts the next 12 months.

Rent & eviction protection

Is 955 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 1969
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 1969
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
Floors1
Year built1969
Total area2,612 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot7513055
Ownership

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

Mailing address
Sandra Lee Trustee 955 Duncan St San Francisco CA 94131
Last sale

Landlord portfolio

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

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Augrented Insights
Initial analysis

The two-unit multi-family residential building at 955 Duncan St in Diamond Heights, owned by the Sandra Lee 2008 Trust, was constructed in 1969 and is classified as a Flats & Duplex with one story. The property's most significant maintenance issue occurred between 2008 and 2011, when a complaint was filed regarding the rear top deck in disrepair with missing guardrails, leading to a formal Notice of Violation in November 2008. This safety concern was ultimately addressed through a permit in August 2010 for deck repairs from dry rot, which cost $3,000 and was completed in August 2011. An earlier minor improvement was attempted in 1989 with a permit to replace three bedroom windows, though this permit expired.

More recently, the property experienced several municipal service interactions between 2019 and 2024, primarily involving street cleaning and maintenance issues in the surrounding area rather than building-specific problems. These included multiple Christmas tree removal requests, sign repairs, and a couple of sewer-related inquiries (one in 2020 that was unable to be located, and another in 2019 that required no action). While there have been various external service calls to the area, including reports of illegal parking (2022), horticultural maintenance (2024), and general street cleaning (2021), none of these incidents directly pertained to the building's condition or safety. The building's records show no active violations or recent permit activity, suggesting the property has maintained compliance with building codes since the resolution of the deck repair issues in 2011.

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

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Risk rating

How 955 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
23rdpercentile

Out of 17 buildings in this neighborhood, 13 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
87%
No DBI
violation
13%
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.

Construction spend, owner's portfolio

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

Estimated permit spend (past 7 years)

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

12-Month risk forecast
Low failure risk 13%
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

955 Duncan St event timeline

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

No dated public records on file yet.
Every record we have

Full data for 955 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 955 Duncan St 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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