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973-975 Duncan St

Diamond Heights, SF 94131 7513032 2 units · 3 fl · 1962

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 Diamond Heights
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.

Rent & eviction protection

Is 973-975 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 1962
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
Floors3
Year built1962
Total area3,270 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot7513032
Ownership

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

Owner name
Timothy R Wolfred 2008 Revo
Mailing address
Wolfred Timothy R Trustee 973 Duncan St San Francisco CA 94131
Last sale
051595

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.

975 Duncan St, San Francisco, CA 94131
973 Duncan St, San Francisco, CA 94131
Augrented Insights
Initial analysis

The property at 973-975 Duncan Street in Diamond Heights is a two-unit, three-story multi-family residential building constructed in 1962, currently owned by Timothy R Wolfred 2008 Revo. The building has undergone several significant maintenance and infrastructure upgrades over the past two decades, including a substantial $47,500 reroofing project completed in 2020, and multiple water heater replacements between 2010 and 2016. Historical records show recurring issues with water damage and deck maintenance between 2002-2004, including repairs to dry rot-affected areas and water-damaged exterior siding. The building's mechanical systems have been regularly updated, with furnace replacements documented in both 2010 and 2013.

Recent developments warrant attention, particularly a sleeping area requirement violation issued in January 2024, and a history of sewer-related issues with documented incidents in 2023, 2021, and as far back as 2010, suggesting ongoing municipal infrastructure challenges in the vicinity. The property has also experienced occasional maintenance issues such as catch basin maintenance in January 2023 and various other municipal service calls. While the building has maintained compliance with most fire safety requirements, with the 2019 alarm systems issue being promptly corrected, the recent violation indicates a potential area of concern. The property has a relatively consistent maintenance record, with regular attention paid to both structural and system upgrades, though the frequency of sewer-related incidents suggests this remains an ongoing challenge for the building and surrounding area.

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

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Risk rating

How 973-975 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

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
88th percentile

Out of 17 buildings in this neighborhood, 2 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
94%
No DBI
violation
6%
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.

Building age

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

Building age

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

12-Month severity forecast
No violation 89.2%
Moderate concern 8.6%
Severe concern 2.2%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
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The story over time

973-975 Duncan St event timeline

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

2020
Building Permit Nov 05
Reroofing
$47,500 · Complete

See all 1 events

Full history back to 2020 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 973-975 Duncan St apartments

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

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