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640-642 Waller St

Hayes Valley, SF 94117 0862011 2 units · 3 fl · 1900

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 Hayes Valley
At or below average
avg 2.3
0
FewerMore

This building has 0 novs (7y), at or below the Hayes Valley average of 2.3.

Rent & eviction protection

Is 640-642 Waller 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 1900
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH3
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 built1900
Total area5,871 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0862011
Ownership

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

Owner name
Lawrence Brinkin 2007 Revoc
Mailing address
Lawrence Brinkin, Trustee 640 Waller St San Francisco CA 94117
Last sale
102607

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.

640 Waller St, San Francisco, CA 94117
642 Waller St, San Francisco, CA 94117
Augrented Insights
Initial analysis

640-642 Waller Street is a three-story, two-unit multi-family residential building located in Hayes Valley, constructed in 1900 and currently owned by the Lawrence Brinkin 2007 Revocable Trust. The building has undergone several significant improvements over the past two decades, with the most recent work in 2020 involving the installation of new double-hung windows with insulated glass on both the street-facing and rear sides of the building. Prior renovations include a complete window replacement project in 2017, attic and wall insulation installation in 2013, and a major reroofing project in 2013 costing $35,850. Between 2004-2009, significant upgrades were made to the building's electrical and plumbing systems, including the installation of smoke detectors, new bathroom plumbing fixtures, and garage improvements.

The building has maintained an active maintenance record, with recent 311 calls in 2023-2024 regarding missing side sewer vent covers, which were promptly resolved. While there was a complaint filed in 2006 regarding unauthorized construction work, there are no active violations or building code complaints on record. The property has received various rear yard variances over the years, indicating ongoing attention to compliance with local regulations. Recent maintenance issues have been primarily related to exterior elements such as drainage and graffiti, all of which have been addressed. The building's documented history shows consistent investment in maintenance and upgrades, with no significant safety concerns or recurring building code violations noted in recent years.

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

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Risk rating

How 640-642 Waller 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
81th percentile

Out of 1027 buildings in this neighborhood, 195 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
84%
No DBI
violation
16%
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 size

Total floor area — a proxy for building scale and the number of systems (plumbing, electrical, HVAC) that can fail.

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 76.6%
Moderate concern 18.1%
Severe concern 5.3%
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

640-642 Waller St event timeline

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

2025
Building Permit Oct 20
Replace 4 treads and risers, stairs, less than 50%, front stairs, street visible. replace landing board. all in kind.
$10,000 · Complete
Planning RecordOct 20
Replace 4 treads and risers, stairs, less than 50%, front stairs, street visible. Replace landing board. All in kind.

See all 3 events

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

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Every record we have

Full data for 640-642 Waller 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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