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525 Duncan St

Noe Valley, SF 94131 6603040 3 units · 2 fl · 1965

This building has significantly more problems than most nearby buildings. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.

NOVs (7y) vs. neighborhood
Compared to a typical building in Noe Valley
Above average
avg 1.2
3
FewerMore

This building has 3 novs (7y), above the Noe Valley average of 1.2.

Rent & eviction protection

Is 525 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 1965
2 or more units
3 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
Units3
Floors2
Year built1965
Total area1,007 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot6603040
Ownership

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

Owner name
Artal Family Lp
Mailing address
44 Crown Ter San Francisco CA 94114
Last sale
000000

Landlord portfolio

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

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Augrented Insights
Initial analysis

The Artal Family LP owns this two-story, three-unit multi-family residential building located at 525 Duncan Street in Noe Valley, which was constructed in 1965. The property has undergone several significant improvements and faced notable challenges in recent years. Most recently, in 2020, there was a substantial renovation project for unit #02 encompassing bathroom and kitchen remodeling, including new fixtures, cabinets, and electrical work with new wiring, outlets, and appliances, costing approximately $30,000. This project was properly permitted and followed by necessary plumbing and electrical permits, though it generated some tenant complaints due to unexpected noise, dust, and lack of communication about the work.

The building's infrastructure improvements include window and sliding door replacements with dry rot repairs in late 2020 and an underground electrical service conversion with four meters completed in 2006. However, the property has experienced several persistent maintenance issues, as evidenced by an active building complaint from August 2020 regarding unauthorized work and tenant inconvenience, along with a report from the same month documenting multiple problems including a non-functioning sliding door, rodent issues, water leaks, and structural concerns. Historical records show a roofing project from 1995, and routine housing inspections in 2000 and 2008, though specific findings from these inspections are not detailed in the available data. The most recent record is from September 2023, relating to external cleaning issues that were promptly resolved by the Department of Public Works.

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

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Risk rating

How 525 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
16th percentile

Out of 1879 buildings in this neighborhood, 1578 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
55%
No DBI
violation
45%
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.

DBI complaint rate, owner's portfolio

Per-building complaint rate across the owner's portfolio.

DBI tenant complaints (past 7 years)

Formal complaints tenants filed with DBI about this building over 7 years.

DBI complaints, owner's portfolio

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

12-Month severity forecast
No violation 53.2%
Moderate concern 23.5%
Severe concern 23.3%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

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The story over time

525 Duncan St event timeline

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

2025
DBI Complaint Jul 29
Ongoing scraping and chipping peeling paint
Housing Inspection Services
Building PermitJan 31
Insulation and drywall in bathroom ceiling. comply with housing nov 202533308

See all 14 events

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

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Every record we have

Full data for 525 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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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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