Free SF apartment background check

340 Hamilton St

Portola, SF 94134 5988021 4 units · 2 fl · 1963

A handful of records on file over the last seven years, and our model sees a moderate chance of more 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 Portola — not a forecast
At or below average
avg 1.8
0
FewerMore

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

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 340 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 1963
2 or more units
4 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.

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 1963
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
Units4
Floors2
Year built1963
Total area3,938 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot5988021
Ownership

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

Owner name
Mailing address
2580 Wexford Ave South San Francisco CA 94080
Last sale

Landlord portfolio

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

Unlock complete report
Augrented Insights
Initial analysis

The four-unit, two-story apartment building at 340 Hamilton Street in Portola, owned by Helen Jackson and constructed in 1963, has experienced several significant maintenance and safety-related events over its history. Most notably, there have been recurring issues with water intrusion and structural problems, particularly with the front deck and stairs. In 2017-2018, major work was performed on the exit stairs to restore them to original construction standards, including the addition of steel columns for support, at a cost of $50,000. Multiple complaints in 2006 documented serious maintenance issues, including dry rot, water damage, and mold problems that prompted violation notices, though these were eventually abated. The building has undergone various system upgrades, including a furnace replacement in 2023 and multiple water heater replacements (most recently attempted in 2023). Recent inspections have shown fewer violations, though a pavement defect was reported nearby in April 2024.

The property has a history of addressing maintenance issues, with all historical building violations and complaints eventually being marked as "Not Active." Past improvements included window replacements in 2012 (four vinyl windows installed) and roofing work in 2000. While there have been several routine inspections and a few non-building-related complaints (mostly regarding parking issues in the vicinity), the property has maintained compliance with building codes since addressing the 2006-2007 violations. The most recent building permit activity, from 2017-2018, focused primarily on stairway safety improvements, suggesting more recent concerns have been handled through regular maintenance rather than major structural changes.

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

Free account unlocks the full analysis — plus 2× more records across all data categories and the complete landlord portfolio.
Risk rating

How 340 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

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
16thpercentile

Out of 255 buildings in this neighborhood, 214 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
51%
No DBI
violation
49%
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.

DBI tenant complaints (past 7 years)

Formal complaints tenants filed with DBI about this building over 7 years.

Neighborhood location

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

12-Month risk forecast
Moderate failure risk 49%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

340 Hamilton St apartment reviews

Real experiences from people who have lived here. Share yours to help other renters decide.

Share your experience — Help other renters by leaving an honest apartment review

Loading reviews…

On the map

Compare nearby alternatives

This building and nearby alternatives, color-coded by risk level. Click any marker to explore.

The story over time

340 Hamilton St event timeline

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

2025
Building Permit Feb 18
Reroofing: flat roof torchdown, tear off like for like. first story only, not touching the rest of the building.
$4,000 · Complete

See all 4 events

Full history back to 2021 — violations, complaints, permits, buyouts, and fire incidents.

Unlock complete timeline
Every record we have

Full data for 340 Hamilton St apartments

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

Side by side

How 340 Hamilton St compares to the neighborhood

This building against comparable properties in Portola. Toggle filters to narrow the peer group.

Loading comparables…
Still apartment hunting in SF?

Look up the next apartment before you sign

Search any SF address free — no account needed to see the risk rating.

Simple pricing

Get the complete picture

Every plan unlocks the complete report: all 13 SF datasets, full history, landlord portfolio, and PDF & Excel exports.

Pay once

Report Bundle

For the buildings you're deciding on right now

$10one time

3premium reports

$3.33 per report · charged once, never renews

Each credit unlocks one building's premium report for 30 days.

  • 3 premium reports — AI executive summary included
  • Live data across all 27 public record types
  • 200 records per dataset
  • PDF & Excel exports included
  • Compare up to 10 buildings side-by-side
  • Credits never expire until you use them
Pay once

Apartment Hunter

For a wide search across many buildings

$39one time

30premium reports

$1.30 per report · charged once, never renews

Each credit unlocks one building's premium report for 30 days.

  • 30 premium reports — AI executive summary included
  • Live data across all 27 public record types
  • 200 records per dataset
  • PDF & Excel exports included
  • Compare up to 10 buildings side-by-side
  • Credits never expire until you use them

Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

Watch 340 Hamilton St
Get alerted the moment a new violation or complaint is filed.