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525-527 Chestnut St

North Beach, SF 94133 0064030A 2 units · 2 fl · 1926

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 North Beach
At or below average
avg 2.1
0
FewerMore

This building has 0 novs (7y), at or below the North Beach average of 2.1.

Rent & eviction protection

Is 525-527 Chestnut 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 1926
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RM2
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
Floors2
Year built1926
Total area3,204 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot0064030A
Ownership

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

Owner name
Mui Walter K J & Victoria C
Mailing address
Walter K J&victoria C Mui 527 Chestnut St San Francisco CA 94133
Last sale
100495

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.

527 Chestnut St, San Francisco, CA 94133
525 Chestnut St, San Francisco, CA 94133
Augrented Insights
Initial analysis

The two-unit residential building at 525-527 Chestnut Street in North Beach, owned by Walter K J & Victoria C Mui, is a two-story flats and duplex structure built in 1926. The building's maintenance record shows several significant improvements over the past five years, including a reroofing project completed in 2018 at a cost of $8,500, and the installation of a new York 2-stage 80k furnace completed in early 2022, indicating attention to both structural and mechanical systems. An electrical permit for a garage door opener was issued in 2003, though records show this permit has expired.

The property's exterior environment has experienced recurring street cleaning issues, particularly in 2022, with four reports of either human/animal waste or loose garbage requiring attention between April and October of that year, three of which were ultimately resolved. While there have been no reported street cleaning issues in recent years, the concentration of these incidents in 2022, particularly during April and October, suggests that this period was marked by notable cleanliness challenges in the immediate vicinity. The building's maintenance history appears generally responsible, with no recorded violations or safety incidents directly impacting the structure or its systems.

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

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Risk rating

How 525-527 Chestnut 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
97th percentile

Out of 362 buildings in this neighborhood, 11 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
95%
No DBI
violation
5%
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.

Building permits, owner's portfolio

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

DBI complaint rate, owner's portfolio

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

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 severity forecast
No violation 89.8%
Moderate concern 5.8%
Severe concern 4.4%
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

525-527 Chestnut St event timeline

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

2022
Plumbing Permit Jan 14
Work category: 1m; installation of york 2-stage furnace 80k
Complete

See all 1 events

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

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Every record we have

Full data for 525-527 Chestnut 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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