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1421-1425 Castro St

Noe Valley, SF 94114 6538043 3 units · 3 fl · 1908

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

NOVs (7y) vs. neighborhood
Compared to a typical building in Noe Valley
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 1421-1425 Castro 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
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
Units3
Floors3
Year built1908
Total area3,480 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot6538043
Ownership

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

Owner name
Solway-Alperstein 2001 Trus
Mailing address
Alperstein Larry & Solway S 4079 25Th St San Francisco CA 94114
Last sale
040898

Landlord portfolio

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

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Multiple entrances & addresses

Included addresses

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

1421 Castro St, San Francisco, CA 94114
1425 Castro St, San Francisco, CA 94114
1423 Castro St, San Francisco, CA 94114
Augrented Insights
Initial analysis

The 3-unit multi-family residential building at 1421-1425 Castro Street in Noe Valley, owned by Solway-alperstein 2001 Trust, has a documented history dating back to its construction in 1908. The property has experienced several significant maintenance issues over the years, with the most pressing concerns relating to structural elements and fire safety. Most recently, in August 2024, there was a reported missing side sewer vent cover, currently listed as an open issue. The building has undergone multiple repairs to its exterior wooden stairways, with work completed in 2012 to address rotted members in the rear stair structure, following a 2001 complaint regarding handrail repairs. There was a concerning pattern of fire safety violations identified in both 2001 and 2012, including issues with combustible storage, fire proofing repairs, and egress obstructions, though all these violations were subsequently abated. The property has also experienced plumbing and sewer-related issues, as evidenced by multiple service requests in December 2014 regarding sewage backups and water leaks that were resolved.

The building's maintenance record shows consistent attention to preservation, with various permits and repairs completed throughout the years, including significant work in the early 1990s to address water damage and replace rotted boards. While most historical violations and complaints have been resolved, the recent sewer vent cover issue in 2024 indicates that some maintenance challenges persist. The property has undergone regular routine inspections, including a 2007 housing inspection, and most recent infrastructure concerns appear to be limited to exterior elements, such as the missing sewer vent cover and previous street lighting issues in 2020.

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

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Risk rating

How 1421-1425 Castro 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
29th percentile

Out of 1879 buildings in this neighborhood, 1334 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
64%
No DBI
violation
36%
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.

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.

12-Month severity forecast
No violation 43.9%
Moderate concern 20.8%
Severe concern 35.3%
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

1421-1425 Castro St event timeline

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

2024
311 Request Aug 06
Missing side sewer vent cover
Street Defect

See all 1 events

Full history back to 2024 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1421-1425 Castro 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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