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637-641 Cole St

Haight Ashbury, SF 94117 1248004 3 units · 3 fl · 1906

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 Haight Ashbury — not a forecast
At or below average
avg 1.7
0
FewerMore

This building has 0 novs (7y), at or below the Haight Ashbury average of 1.7.

Rent & eviction protection

Is 637-641 Cole 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 1906
2 or more units
3 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 1906
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
Units3
Floors3
Year built1906
Total area5,100 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1248004
Ownership

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

Mailing address
250 Walnut St San Francisco CA 94118
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.

639 Cole St, San Francisco, CA 94117
641 Cole St, San Francisco, CA 94117
637 Cole St, San Francisco, CA 94117
Augrented Insights
Initial analysis

The three-unit residential building at 637-641 Cole Street in Haight Ashbury is a three-story flats and duplex structure built in 1906, currently owned by Richard and Kathleen Hardwig. The property has undergone several notable maintenance activities over the past two decades, including two roofing projects — most recently in October 2019 at a cost of $15,450, and an earlier project in 2000 which expired at $8,995. Street space and sidewalk repairs were completed in 2008, demonstrating attention to exterior public areas.

The building has experienced periodic maintenance issues and housing inspections, with a significant fire safety violation in 2006 regarding fire proofing materials, though this was abated within two months. Other tenant-reported issues included a malfunctioning kitchen appliance and plumbing problems in 2011, rat infestations and a broken front door frame in 2007, and various routine inspections throughout the 2000s that were promptly resolved. While there have been four graffiti incidents reported near the building between 2016 and 2022, these were typically addressed promptly by city services, and there has been one case of loose garbage requiring general cleaning in 2018. The property's documented history suggests regular maintenance and prompt response to violations, though the presence of multiple graffiti incidents and some maintenance issues over the years may be worth noting.

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

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Risk rating

How 637-641 Cole 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
73rdpercentile

Out of 581 buildings in this neighborhood, 157 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
80%
No DBI
violation
20%
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 age

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

Owner's portfolio size

Number of SF parcels this owner is registered on — larger portfolios have distinct risk patterns.

Property class: multi-family flat

2–4 unit flats (class F) are a common SF building type with their own maintenance and complaint patterns.

12-Month risk forecast
Low failure risk 20%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

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On the map

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8 found
The story over time

637-641 Cole St event timeline

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

2019
Building Permit Oct 08
Reroofing
$15,450 · Issued

See all 1 events

Full history back to 2019 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 637-641 Cole St apartments

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

Side by side

How 637-641 Cole St compares to the neighborhood

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