Free SF apartment background check

310 Hamilton St

Portola, SF 94134 5988018 6 units · 3 fl · 1965

This building has a higher-than-average number of open problems nearby. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.

NOVs (7y) vs. neighborhood
Compared to a typical building in Portola
At or below average
avg 1.8
0
FewerMore

This building has 0 novs (7y), at or below the Portola average of 1.8.

Rent & eviction protection

Is 310 Hamilton 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 1965
2 or more units
6 units
Property type
Multi-Family Residential
Zoning
RH1
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.

Building characteristics
Units6
Floors3
Year built1965
Total area4,980 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot5988018
Ownership

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

Owner name
Yan Kam Y
Mailing address
310 Hamilton St Apt 2 San Francisco CA 94134
Last sale
013105

Landlord portfolio

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

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Augrented Insights
Initial analysis

The three-story multi-family residential building at 310 Hamilton Street in Portola, owned by Yan Kam Y, was constructed in 1965 and contains 6 units. The building has a documented history of recurring maintenance issues, primarily related to water damage and infrastructure problems. Most notably, there have been multiple instances of dry rot and water-related damage, with repairs recorded in 1995, 1996, 1997, 1999, and 2010. More recent issues include a tenant complaint from August 2024 regarding bathroom problems, and several maintenance complaints from 2014-2015 involving non-functional appliances and water leaks. The building has undergone several significant repairs over the years, including roofing work in 1993 and various other repairs totaling approximately $1,000 in 2010 to address multiple issues including fence, deck, and window repairs.

The property has experienced several compliance and safety concerns, including multiple building violations in 2006 related to fire escape maintenance and gas meter safety, all of which were abated by February 2010. There were substantial water-related issues in November 2009 affecting multiple areas of the building, including water-damaged ceilings and walls, which required repairs of various interior surfaces. While there have been multiple fire department responses to the building between 2007 and 2019, all were for system malfunctions or false alarms with no reported injuries or actual fires. The building's maintenance history suggests an ongoing need for careful oversight of water management and general upkeep, as evidenced by the pattern of similar issues recurring over the decades since its construction.

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

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Risk rating

How 310 Hamilton 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

Grade A–B — Low risk

DBI rarely finds violations here. Strong maintenance history and a clean complaint record.

Grade C — Moderate risk

Some past violations or complaints on record. Worth asking the landlord about any open issues before signing.

Grade D–F — High risk

Elevated violation and complaint history. DBI has found issues here before and is statistically likely to again.

Neighborhood percentile
33th percentile

Out of 255 buildings in this neighborhood, 171 are predicted to be safer.

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.

Number of units

The number of units affects how the model reads complaint and violation totals — more units means more potential sources.

Neighborhood location

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

Building size

Total floor area — a proxy for building scale and the number of systems (plumbing, electrical, HVAC) that can fail.

12-Month severity forecast
No violation 32.0%
Moderate concern 24.3%
Severe concern 43.8%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

310 Hamilton St apartment reviews

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The story over time

310 Hamilton St event timeline

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

2024
DBI Complaint Aug 20
Customer is haing an issue with the bathroom after fixing an issue with the bathroom left the wall open with a hole and said it need to dry and it's been a week.
Housing Inspection Services

See all 1 events

Full history back to 2024 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 310 Hamilton St apartments

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

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