Free SF apartment background check

642-646 Castro St

Eureka Valley/Dolores Heights, SF 94114 2696040 3 units · 3 fl · 1900

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 Eureka Valley/Dolores Heights
At or below average
avg 1.3
1
FewerMore

This building has 1 novs (7y), at or below the Eureka Valley/Dolores Heights average of 1.3.

Rent & eviction protection

Is 642-646 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 1900
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.

Building characteristics
Units3
Floors3
Year built1900
Total area4,635 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot2696040
Ownership

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

Owner name
Smithton Zoya Lee
Mailing address
2800 Van Ness Ave San Francisco CA 94109
Last sale
082696

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.

642 Castro St, San Francisco, CA 94114
644 Castro St, San Francisco, CA 94114
646 Castro St, San Francisco, CA 94114
Augrented Insights
Initial analysis

The property at 642-646 Castro Street is a 3-story multi-family residential building constructed in 1900, currently owned by Smithton Zoya Lee. The building has undergone several significant renovations and faced multiple compliance issues in recent years. Most notably, it is currently classified as a Non-Compliant Tier 3 building under San Francisco's Mandatory Soft Story Program, with active violations related to earthquake safety requirements filed in October 2022 and a director's hearing scheduled for January 2024. The building underwent major modifications between 2020-2021, including the attempted addition of five ADU units in 2020 (with permits filed for $187,500), followed by separate bathroom and kitchen installations for each unit in 2021, though these permits have since expired. The construction process faced multiple complaints from residents, including concerns about open basement conditions, noise from construction equipment, and dust control during excavation.

Recent building improvements include a $66,000 reroofing project completed in January 2024 and the installation of a new sprinkler system ($19,500) in 2021, indicating ongoing efforts to improve building safety features. The property has experienced various maintenance issues, with multiple 311 calls in 2022-2023 regarding sewage back-ups, pavement defects, and tree problems. There have been documented fire safety concerns in 2020-2021 regarding blocked exits and electrical systems, though these were marked as corrected. Historical issues include peeling paint documented in 2013 and unauthorized work complaints in 2017. While the property is actively pursuing improvements and modifications, the outstanding soft story compliance violation and previous construction-related concerns suggest ongoing challenges with building safety and resident impacts.

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

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Risk rating

How 642-646 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
22th percentile

Out of 1278 buildings in this neighborhood, 997 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
57%
No DBI
violation
43%
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.

DBI tenant complaints (past 7 years)

Formal complaints tenants filed with DBI about this building over 7 years.

Director's hearings (past 7 years)

Director's hearings are escalated enforcement actions for buildings that haven't resolved violations — a serious signal.

DBI complaints, owner's portfolio

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

12-Month severity forecast
No violation 32.1%
Moderate concern 61.2%
Severe concern 6.7%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

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The story over time

642-646 Castro St event timeline

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

2023
311 Request May 03
Blocking driveway cite tow
Gray - Audi - 7TBL293

See all 21 events

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

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Every record we have

Full data for 642-646 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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