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640-642 Waller St

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

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 Hayes Valley — not a forecast
At or below average
avg 2.2
0
FewerMore

This building has 0 novs (7y), at or below the Hayes Valley average of 2.2.

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.

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 1900
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
Floors3
Year built1900
Total area5,871 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0862011
Ownership

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

Mailing address
Lawrence Brinkin, Trustee 640 Waller St San Francisco CA 94117
Last sale

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.

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

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
80thpercentile

Out of 1027 buildings in this neighborhood, 205 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
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 risk forecast
Low failure risk 16%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

640-642 Waller St 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.

Side by side

How 640-642 Waller St compares to the neighborhood

This building against comparable properties in Hayes Valley. Toggle filters to narrow the peer group.

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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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