Free SF apartment background check

281-285 Diamond St

Eureka Valley/Dolores Heights, SF 94114 2697021 3 units · 2 fl · 1969

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 Eureka Valley/Dolores Heights — not a forecast
At or below average
avg 1.4
0
FewerMore

This building has 0 novs (7y), at or below the Eureka Valley/Dolores Heights average of 1.4.

Rent & eviction protection

Is 281-285 Diamond 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 1969
2 or more units
3 units
Property type
Multi-Family Residential
Zoning
RH3
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 1969
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
Units3
Floors2
Year built1969
Total area3,776 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot2697021
Ownership

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

Owner name
Mailing address
Lillian Woo, Tte 1976 Lexington Ave San Mateo CA 94402
Last sale

Landlord portfolio

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

Unlock complete report
Multiple entrances & addresses

Included addresses

All street addresses sharing this blocklot that are covered by this report.

285 Diamond St, San Francisco, CA 94114
281 Diamond St, San Francisco, CA 94114
Augrented Insights
Initial analysis

The property at 281-285 Diamond Street is a two-story, three-unit multi-family residential building constructed in 1969, currently owned by the Chorley-woo Trust. The building has undergone several significant improvements over the past decades, including a complete reroofing project in 2011 costing $14,452, the installation of aluminum windows in 1984, and foundation raising work on the west wall in 1986. More recent maintenance includes the replacement of two aluminum sliding doors with vinyl doors in 2013, a project valued at $2,500. The building has been subject to two routine housing inspections in 2001 and 2011, with the only noted violation being a fire safety issue in 2001 regarding egress obstruction, which was promptly addressed within three weeks of the notice.

Recent activity around the property has primarily involved exterior maintenance and municipal services, with multiple 311 calls between 2020 and 2022 concerning street cleaning, tree maintenance, parking enforcement, and streetlight issues. The most recent concerns in 2022 involved reports of loose garbage and a damaged tree, both of which were resolved by city services. The building's maintenance history shows regular upkeep of major systems and features, with no recent building code violations or serious complaints on record. The property's relatively clean inspection history and consistent maintenance record suggest proper management of the building's physical infrastructure, with most recent external issues being typical urban maintenance concerns rather than building-specific problems.

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 281-285 Diamond 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
47thpercentile

Out of 1278 buildings in this neighborhood, 677 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
72%
No DBI
violation
28%
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.

Estimated permit spend (past 7 years)

Dollar value of permits pulled at this address — large recent spend can signal deferred-maintenance catch-up.

Construction spend, owner's portfolio

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

12-Month risk forecast
Moderate failure risk 28%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

281-285 Diamond 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

281-285 Diamond St event timeline

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

2026
DBI Complaint May 01
Date last observed: 30-apr-26; time last observed: 9:00am; floor: ground; exact location: side bldg; building type: residence/dwelling work beyond scope of permit; work being done in dangerous manner; ; additional information: construction at 281 diamond st has been ongoing for approximately two years. the project was previously cited for work performed without a permit (complaint filed february 2026 by an adjacent tenant). a permit was subsequently filed (202602246382, issued 2/24/2026) covering only siding replacement, drywall restoration, and door jamb repair. despite this limited scope, construction has now expanded to include a staging structure built onto the neighboring property at 4338 20th street without consent. given the extended duration and history of permit violations at this address, i am requesting a site inspection to verify compliance with the current permit scope. photos documenting the encroachment are available upon request.;
Building Inspection Division
Building PermitFeb 24
Replace siding as needed. restore drywall as needed. repair wood rot at door jamb (back door). all work - non street visible.

See all 3 events

Full history back to 2026 — violations, complaints, permits, buyouts, and fire incidents.

Unlock complete timeline
Every record we have

Full data for 281-285 Diamond St apartments

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

Side by side

How 281-285 Diamond St compares to the neighborhood

This building against comparable properties in Eureka Valley/Dolores Heights. 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 281-285 Diamond St
Get alerted the moment a new violation or complaint is filed.