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1041-1043 Duncan St

Diamond Heights, SF 94131 7514003 2 units · 2 fl · 1963

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.

Rent & eviction protection

Is 1041-1043 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 1963
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 1963
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 built1963
Total area2,870 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot7514003
Ownership

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

Owner name
Mailing address
Jones Russell L & Courtney 1043 Duncan St San Francisco CA 94131
Last sale
November 18, 2005

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.

1043 Duncan St, San Francisco, CA 94131
1041 Duncan St, San Francisco, CA 94131
Augrented Insights
Initial analysis

The property at 1041-1043 Duncan Street is a 2-unit, 2-story multi-family residential building constructed in 1963, currently owned by the Jones Family Trust. The building's maintenance history shows regular upkeep and improvements over the years, including a significant interior remodel of the kitchen and bathrooms in 2006 valued at $50,000, electrical upgrades, and safety improvements such as deck renovations in 2005 which included installing lattice panels to address safety code requirements. Recent infrastructure work includes a sewer replacement in 2022, and there have been multiple roofing and decking improvements documented through various permits.

The building has experienced several fire safety inspections and incidents, though none have resulted in injuries or serious damage. Recent fire complaints in 2024 and 2021 were found to have no merit, and there have been multiple false alarms and smoke detector activations recorded. A notable recent permit violation was issued in December 2023 regarding sleeping area requirements, though this was marked as abated. The property has been subject to various parking-related issues in the vicinity, with multiple reports of abandoned vehicles and illegal parking between October and December 2024, though most of these complaints were either not validated by SFMTA officers or the vehicles were gone upon inspection. While the building has a relatively clear safety record with only one documented cooking fire (contained) and no civilian injuries from fire incidents, the frequency of parking complaints and recent permit violations suggests ongoing management challenges in the surrounding area.

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

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Risk rating

How 1041-1043 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
47thpercentile

Out of 17 buildings in this neighborhood, 9 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
88%
No DBI
violation
12%
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 permits, owner's portfolio

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

12-Month risk forecast
Low failure risk 12%
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

1041-1043 Duncan St event timeline

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

2026
Building Permit Jan 20
Reroofing: remove and replace composite shingle on roof. garage roof: hot works.
$12,000 · Issued

See all 2 events

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

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Every record we have

Full data for 1041-1043 Duncan St apartments

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

Side by side

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