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1639-1641 Sanchez St

Noe Valley, SF 94131 6632110 2 units · 2 fl · 1913

A handful of records on file over the last seven years, and our model puts this building at a low risk of further maintenance problems in the next 12 months. A few records worth reading before you sign. Check whether they were closed out, and ask what was actually fixed.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Noe Valley — not a forecast
At or below average
avg 1.2
0
FewerMore

This building has 0 novs (7y), at or below the Noe Valley average of 1.2.

Rent & eviction protection

Is 1639-1641 Sanchez 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 1913
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH2
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 1913
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
Floors2
Year built1913
Total area2,172 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot6632110
Ownership

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

Mailing address
1639 Sanchez St San Francisco CA 94131
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.

1639 Sanchez St, San Francisco, CA 94131
1641 Sanchez St, San Francisco, CA 94131
Augrented Insights
Initial analysis

The property at 1639-1641 Sanchez Street in Noe Valley is a two-unit, two-story multi-family residential building constructed in 1913, currently owned by the John M & Anna C Keenan Family Trust. The building has been experiencing significant maintenance and safety issues, with two serious complaints filed in August 2016 describing it as a highly damaged, hideously neglected, and abandoned property requiring weed abatement, with reports of a bowing cracked wall, peeling paint, and general neglect. One of these cases remains active as a vacant building complaint while the other has transitioned to not active status.

The property's recent history shows no substantial internal building complaints filed after 2016, which could indicate either an improvement in building conditions or a reduction in reporting activity. The surrounding street area has experienced multiple maintenance issues over the years, with the most recent incidents being parking violations and street cleaning matters primarily involving public property and city services rather than the building itself. These external issues include reports of sidewalk parking (March 2023), human or animal waste (December 2022), and overflowed city garbage cans (October 2022). Prior to these, there were several documented cases of general cleaning needs in the vicinity, including loose garbage (September 2019 and November 2014) and an abandoned vehicle situation (March 2016). While these external issues highlight some neighborhood maintenance challenges, they do not directly reflect on the building's current condition as there have been no recent building-specific complaints.

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

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Risk rating

How 1639-1641 Sanchez 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
85thpercentile

Out of 1879 buildings in this neighborhood, 282 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
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.

Construction spend, owner's portfolio

Estimated permit value across all of this owner's buildings.

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 11%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

1639-1641 Sanchez St apartment reviews

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On the map

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Buildings nearby
8 found
The story over time

1639-1641 Sanchez St event timeline

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

2025
311 Request Nov 14
Garbage and debris
other loose garbage debris yard waste

See all 1 events

Full history back to 2025 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1639-1641 Sanchez St apartments

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

Side by side

How 1639-1641 Sanchez St compares to the neighborhood

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