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650 40Th Ave

Outer Richmond, SF 94121 1582034 2 units · 2 fl · 1927

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 Outer Richmond — not a forecast
At or below average
avg 0.7
0
FewerMore

This building has 0 novs (7y), at or below the Outer Richmond average of 0.7.

Rent & eviction protection

Is 650 40Th Ave 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 1927
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 1927
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 built1927
Total area2,728 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1582034
Ownership

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

Mailing address
Kim Kimberly H, Ttee 650 40Th Ave San Francisco CA 94121
Last sale
January 05, 1993

Landlord portfolio

Other SF properties this owner holds, with a risk rating for each.

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Augrented Insights
Initial analysis

The property at 650 40th Avenue is a two-unit, two-story multi-family residential building located in the Outer Richmond neighborhood, built in 1927 and currently owned by the Kimberly H Kim Living Trust. The building has undergone significant recent renovations, most notably in 2023-2024, including major improvements to both units such as the replacement of 300 square feet of siding, bathroom renovations, kitchen updates, and the installation of a roof-mounted solar PV system. Earlier improvements included re-roofing (August 2023), bamboo flooring installation (September 2023), and comprehensive electrical upgrades including circuit labeling and GFCI protection (March 2024).

The building has a history of addressing various compliance issues, including the removal of an illegal staircase and door modifications in 2024, correcting an unpermitted rear deck in 2017, and window/door replacements in 2018. Several plumbing and electrical permits have been issued and completed, indicating regular maintenance and upgrades to the building's systems. Of note are multiple sewage back-up incidents reported in 2023 (four occurrences in May alone), though these were all properly resolved according to PUC records. The property has experienced some neighborhood issues as documented in 311 calls, including reports of abandoned vehicles and sidewalk defects, but these were exterior to the building itself.

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

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Risk rating

How 650 40Th Ave'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
95thpercentile

Out of 1040 buildings in this neighborhood, 52 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
93%
No DBI
violation
7%
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.

Neighborhood location

Precise location is a proxy for neighborhood-level risk — some SF blocks have systematically higher DBI activity.

Building age

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

Property class: single-family home

Single-family homes (class A) have distinct violation and complaint patterns from multi-family buildings.

12-Month risk forecast
Low failure risk 7%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

650 40Th Ave apartment reviews

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On the map

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The story over time

650 40Th Ave event timeline

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

2024
Building Permit Aug 15
Remove unpermitted staircase connecting gr fl and 2nd fl. remove door at master bedroom at lower unit.
$5,000 · Complete
Planning RecordAug 15
Remove and infill interior unpermitted staircase and remove and infill unpermitted door at primary bedroom at lower unit.

See all 12 events

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

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Every record we have

Full data for 650 40Th Ave apartments

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

Side by side

How 650 40Th Ave compares to the neighborhood

This building against comparable properties in Outer Richmond. 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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