Free SF apartment background check

451-455 Guerrero St

Mission Dolores, SF 94110 3568047 3 units · 3 fl · 1908

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 Mission Dolores
At or below average
avg 2.9
0
FewerMore

This building has 0 novs (7y), at or below the Mission Dolores average of 2.9.

Rent & eviction protection

Is 451-455 Guerrero 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 1908
2 or more units
3 units
Property type
Multi-Family Residential
Zoning
RM2
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
Units3
Floors3
Year built1908
Total area6,480 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot3568047
Ownership

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

Owner name
Shaw Cora
Mailing address
455 Guerrero St San Francisco CA 94110
Last sale
012320

Landlord portfolio

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

Unlock complete report
Multiple entrances & addresses

Included addresses

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

451 Guerrero St, San Francisco, CA 94110
453 Guerrero St, San Francisco, CA 94110
455 Guerrero St, San Francisco, CA 94110
Augrented Insights
Initial analysis

The three-unit, three-story multi-family residential building at 451-455 Guerrero Street in Mission Dolores, owned by Cora Shaw, has undergone significant renovations and improvements since 2020. Most notably, the property completed a voluntary soft-story retrofit in 2021 at a cost of $110,000, improving its seismic safety. The building has seen comprehensive interior upgrades, including multiple kitchen and bathroom remodels between 2020-2023, the most recent being in March 2023, along with the installation of multiple mini-split HVAC systems throughout 2022-2023, and an electrical service upgrade to 400 amps in July 2023. Sustainability features include three separate solar PV installations between 2022-2025, with the most recent project for 9 modules rated 3.82 kW issued in January 2025.

The property's maintenance history shows regular upkeep, with work completed on garage door modifications, various bathroom and kitchen upgrades, and the relocation of the electrical fuse box in 2019. Historical records indicate routine housing inspections in 1999 and 2003 with no active violations. A significant tenant buyout occurred in December 2020 with one tenant receiving $80,000, though the impact on unit configuration is unclear as no unit count change was indicated. Recent 311 calls primarily relate to street-level issues such as graffiti and debris, while the building itself has no recorded major complaints or violations in recent years, suggesting generally good maintenance practices.

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 451-455 Guerrero 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
86th percentile

Out of 799 buildings in this neighborhood, 112 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
84%
No DBI
violation
16%
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.

Building size

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

Neighborhood (ZIP code)

The ZIP code captures local housing market and enforcement patterns that affect all buildings in the area.

Building age

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

12-Month severity forecast
No violation 55.8%
Moderate concern 39.9%
Severe concern 4.3%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

451-455 Guerrero 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.

Buildings nearby
Loading…
The story over time

451-455 Guerrero St event timeline

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

2026
311 Request May 09
Homelessness and supportive housing
housing homeless request for service
311 RequestMay 01
Homelessness and supportive housing

See all 21 events

Full history back to 2020 — violations, complaints, permits, buyouts, and fire incidents.

Unlock complete timeline
Every record we have

Full data for 451-455 Guerrero St apartments

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

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.

Report Bundle

For the buildings you're deciding on right now

$10 one-time

~$3.33 per building. No subscription ever. Each credit unlocks one building's premium report for 30 days.

  • 3 full AI-powered reports
  • Download PDF reports
  • Advanced safety analysis
  • Compare multiple buildings
  • Credits never expire until you use them
  • Full public records (200 rows per dataset)
Buy 3 Reports — $10

Apartment Hunter

For a wide search across many buildings

$39 one-time

30 reports — ~$1.30 each. No subscription ever.

  • 30 full AI-powered reports
  • Download PDF reports
  • Advanced safety analysis
  • Compare multiple buildings
  • Credits never expire until you use them
  • Full public records (200 rows per dataset)
Buy 30 Reports — $39

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

Watch 451-455 Guerrero St
Get alerted the moment a new violation or complaint is filed.