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1021-1023 Guerrero St

Noe Valley, SF 94110 3634017 4 units · 2 fl · 1879

Nothing on record for this building in the last seven years, and our model puts it at a low risk of maintenance problems over the next 12 months. No public enforcement record to go on. Walk the building, ask the current tenants how repairs get handled, and get any promises in writing.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Noe Valley — not a forecast
At or below average
avg 1.2
0
FewerMore

This building has 0 novs (7y), at or below the Noe Valley average of 1.2.

Rent & eviction protection

Is 1021-1023 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 1879
2 or more units
4 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 1879
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 built1879
Total area4,026 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot3634017
Ownership

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

Owner name
Mailing address
1023a Guerrero St San Francisco CA 94110
Last sale
March 06, 2007

Landlord portfolio

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

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Multiple entrances & addresses

Included addresses

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

1021 A Guerrero St, San Francisco, CA 94110
1023 Guerrero St, San Francisco, CA 94110
1021 Guerrero St, San Francisco, CA 94110
Augrented Insights
Initial analysis

The property at 1021-1023 Guerrero Street is a two-story multi-family residential building located in Noe Valley, containing four units and constructed in 1879. The building underwent significant renovations between 2007-2008, including comprehensive interior remodeling of the second and third floors involving kitchen relocations, bathroom additions, and stair reframing to meet code requirements, with associated electrical, plumbing, and roofing work totaling approximately $376,000. While the main renovation project was successfully completed, there was a notable permit compliance issue where one of the building permits (200802295963) was cancelled, leading to violation proceedings in 2009 that were ultimately abated in 2010. During the renovation period, there were some construction-related complaints regarding debris and scaffolding, though these were resolved promptly.

More recent history of the property includes a 2013 complaint about mold issues within the building. The rear yard area has been the subject of proposed changes, with planning records indicating consideration for merging two units into one and adding a parking space, though it's unclear from the records whether this was implemented. The property has experienced recurring issues with street signs being defaced, with multiple 311 calls between 2021-2023, and there have been several parking-related enforcement actions in the vicinity, though these are not directly related to the building's condition or management. The most recent building-related service calls have primarily concerned sidewalk cleaning and maintenance issues outside the building, suggesting regular attention to exterior upkeep.

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

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Risk rating

How 1021-1023 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

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
54thpercentile

Out of 1879 buildings in this neighborhood, 864 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
79%
No DBI
violation
21%
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 permits, owner's portfolio

Permits pulled across all of this owner's buildings over 7 years.

12-Month risk forecast
Low failure risk 21%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

1021-1023 Guerrero St apartment reviews

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On the map

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The story over time

1021-1023 Guerrero St event timeline

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

2026
311 Request Feb 10
Garbage and debris
christmas tree
311 RequestFeb 08
Other illegal parking

See all 5 events

Full history back to 2023 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1021-1023 Guerrero St apartments

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

Side by side

How 1021-1023 Guerrero St compares to the neighborhood

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

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

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