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811 Guerrero St

Eureka Valley/Dolores Heights, SF 94110 3608056 2 units · 2 fl · 1900

This building has significantly more problems than most nearby buildings. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.

NOVs (7y) vs. neighborhood
Compared to a typical building in Eureka Valley/Dolores Heights
At or below average
avg 1.3
0
FewerMore

This building has 0 novs (7y), at or below the Eureka Valley/Dolores Heights average of 1.3.

Rent & eviction protection

Is 811 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 1900
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH2
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
Units2
Floors2
Year built1900
Total area2,715 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot3608056
Ownership

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

Owner name
Trent R Dunphy Revoc Tr
Mailing address
Trent R Dunphy Trustee 811 Guerrero St San Francisco CA 94110
Last sale
000000

Landlord portfolio

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

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Augrented Insights
Initial analysis

Located in San Francisco's Eureka Valley/Dolores Heights neighborhood, 811 Guerrero Street is a two-unit, two-story multi-family residential building constructed in 1900 and currently owned by the Trent R Dunphy Revocable Trust. The building underwent significant structural work in 1996-1997, including excavation of the basement crawl space and construction of a new foundation, along with shearwall and other revisions. More recent improvements were made in 2010, when both exterior plywood sheathing was replaced and a new roof was installed, with the total cost of these improvements amounting to over $18,000.

The property has experienced several maintenance and safety issues in the past few years, with the most notable being a sunken and damaged utility vault cover in 2022 that affected the sidewalk area. While there was one recorded case of work being done without proper permits (which was subsequently abated), this violation was not linked to any specific developer. The building is currently dealing with some parking-related challenges, as evidenced by multiple complaints about blocked driveways and illegal parking between 2022 and 2024. The most recent incident of concern was reported in December 2024, involving glass debris on the property grounds. The property's maintenance history shows regular upkeep, particularly focusing on structural elements like the foundation and roofing systems, though there have been periodic issues with the surrounding public infrastructure such as sidewalks and street access.

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

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Risk rating

How 811 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
18th percentile

Out of 1278 buildings in this neighborhood, 1048 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
54%
No DBI
violation
46%
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.

Permit rate, owner's portfolio

Per-building permit rate across the owner's portfolio.

Neighborhood (ZIP code)

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

12-Month severity forecast
No violation 42.2%
Moderate concern 29.6%
Severe concern 28.2%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
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The story over time

811 Guerrero 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 811 Guerrero St apartments

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

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

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