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640-642 Missouri St

Potrero Hill, SF 94107 4100035 2 units · 2 fl · 1987

Nothing on record for this building in the last seven years. Our model still sees a moderate chance of maintenance problems in the next 12 months, from the owner's wider portfolio and the surrounding area rather than from anything recorded here. 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 Potrero Hill — not a forecast
At or below average
avg 1.1
0
FewerMore

This building has 0 novs (7y), at or below the Potrero Hill average of 1.1.

The bar and the rating point different ways because they measure different things: the bar counts DBI violations already on file, the rating forecasts the next 12 months.

Rent & eviction protection

Is 640-642 Missouri 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 1987
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH2
Not rent-controlled. Buildings constructed after 1978 are generally exempt from SF rent increase limits under the Costa-Hawkins Act.

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 1987
Annual rent increase cap
5% + CPI, max 10%
Just-cause eviction
After 12 months
May be covered by AB 1482. The building is old enough for the statewide rent cap (5% + regional CPI, capped at 10% per year) and just-cause protection after 12 months of tenancy.

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 built1987
Total area3,000 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot4100035
Ownership

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

Mailing address
Pon Susie Sook Che Trustee 165 San Felipe Ave San Francisco CA 94127
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 Missouri St, San Francisco, CA 94107
642 Missouri St, San Francisco, CA 94107
Augrented Insights
Initial analysis

The property at 640-642 Missouri Street is a two-unit, two-story multi-family residential building located in Potrero Hill, built in 1987 and currently owned by Kenny A & Susie S C Pon Rev. The most significant recent building improvement was made in 2012, when vinyl siding was installed on the right side of the house and lightwell at a cost of $20,584, though this was non-structural and not visible from the street. The building's permit history shows activity primarily from 1985 and 2012, with no major renovations or structural changes recorded in recent years.

Between July and October 2024, there has been a notable cluster of municipal service calls related to the property and its immediate vicinity, with the most pressing issues including an open sidewalk defect caused by tree roots (reported September 2024), various parking enforcement matters, and multiple Rent Board inquiries. While the majority of these calls have been resolved or closed, there is currently one open noise complaint from July 2024. Other reported issues, such as street lighting (resolved August 2024), garbage cleanup (resolved August 2024), and two abandoned vehicle complaints (July 2024), were appropriately addressed by respective city services. Additionally, there was one fire alarm incident on record related to a system malfunction, with no injuries reported. The property appears to be generally well-maintained in terms of structural integrity, though the recent spike in municipal service calls may indicate an evolving neighborhood environment requiring ongoing attention to urban infrastructure and services.

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

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Risk rating

How 640-642 Missouri 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
29thpercentile

Out of 726 buildings in this neighborhood, 515 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
63%
No DBI
violation
37%
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.

Neighborhood location

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

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
Moderate failure risk 37%
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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The story over time

640-642 Missouri St event timeline

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

No dated public records on file yet.
Every record we have

Full data for 640-642 Missouri 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 Missouri St compares to the neighborhood

This building against comparable properties in Potrero Hill. 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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