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133-135 Cornwall St

Inner Richmond, SF 94118 1431045 2 units · 2 fl · 1947

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 Inner Richmond
At or below average
avg 0.9
0
FewerMore

This building has 0 novs (7y), at or below the Inner Richmond average of 0.9.

Rent & eviction protection

Is 133-135 Cornwall 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 1947
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RM1
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 built1947
Total area2,064 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1431045
Ownership

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

Owner name
Wee Ming & Rosiland Tan Yee
Mailing address
133 Cornwall St San Francisco CA 94118
Last sale
082109

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.

135 Cornwall St, San Francisco, CA 94118
133 Cornwall St, San Francisco, CA 94118
Augrented Insights
Initial analysis

The property at 133-135 Cornwall Street is a two-story, two-unit multi-family residential building located in San Francisco's Inner Richmond neighborhood, owned by Wee Ming & Rosiland Tan Yee. Built in 1947, this flats and duplex-style building has undergone several significant improvements over the years, with the most recent being a comprehensive kitchen and bathroom remodel completed in June 2023 at a cost of $60,000, which included non-structural updates to cabinets, appliances, counters, and plumbing and electrical systems. This latest renovation follows a pattern of maintenance and upgrades, including a similar kitchen and bathroom remodeling project in 2006 for Unit 133 that involved cabinet, countertop, sink, floor, bathroom, and lighting improvements, as well as furnace heater replacement, costing $18,500.

The building's maintenance history shows consistent care and upgrading of essential systems, with particular attention to kitchen and bathroom modernization. The only recorded incident that might have affected resident experience was a parking enforcement call in May 2023 regarding a blocking driveway situation, though this was promptly resolved through normal city channels. The property's documented history suggests regular upkeep and modernization efforts, with no recorded safety violations or complaints that would indicate significant resident impact.

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

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Risk rating

How 133-135 Cornwall 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
85th percentile

Out of 1723 buildings in this neighborhood, 258 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
89%
No DBI
violation
11%
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.

Building age

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

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 81.7%
Moderate concern 14.9%
Severe concern 3.4%
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

133-135 Cornwall St event timeline

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

2023
Building Permit Jun 20
Remodel one (e) kitchen, change the (e) cabinets and appliances and counter. remodel one (e) bathroom. all non structural work.
$38,000 · Complete
Plumbing PermitJun 20
Remodel the existing kitchen. remodel the existing bathroom, with shower pan.

See all 3 events

Full history back to 2023 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 133-135 Cornwall St apartments

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

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