Free SF apartment background check

167 21St Ave

Lake Street, SF 94121 1381011 6 units · 3 fl · 1965

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 Lake Street
At or below average
avg 0.6
0
FewerMore

This building has 0 novs (7y), at or below the Lake Street average of 0.6.

Rent & eviction protection

Is 167 21St Ave 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 1965
2 or more units
6 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
Units6
Floors3
Year built1965
Total area6,270 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1381011
Ownership

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

Owner name
Silverman Rosemary Rev Trus
Mailing address
516 Emerald Av San Carlos CA 94070
Last sale
091198

Landlord portfolio

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

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Augrented Insights
Initial analysis

The three-story multi-family residential building at 167 21st Avenue, owned by the Silverman Rosemary Rev Trust, was constructed in 1965 and contains 6 units. The building has experienced several significant water-related issues over its history, most notably a flood incident in 2015 that affected units 201 and 301, requiring comprehensive repairs to kitchen cabinets, flooring, countertops, and sheetrock, along with associated plumbing and electrical work totaling $20,000. More recently, in 2017, a complaint was filed regarding mold throughout thin walls, following earlier reports of dampness and leaks, including a 2007 complaint about damp carpeting and flooring in a bedroom. The building's maintenance history includes window and door replacements in 2013 (permit expired), and a complete reroofing project in 1992.

In terms of safety and compliance history, the building experienced a cluster of fire safety violations in 2003, including issues with smoke detectors on the third floor and lobby, fire escape ladder maintenance, egress obstructions, and gas utility shutoff tools, though these violations were all abated by June 13, 2003. The property has also had three carbon monoxide-related incidents recorded (two detector activations and one public service call), though no civilian injuries were reported in connection with these events. Other routine inspections have been conducted, including a 2008 inspection, and there was one incident in 1995 involving non-functional appliances and water issues that was quickly resolved. Two recent permits from 2020 (street space) and 2012 (streetlight issue) indicate ongoing attention to building and surrounding area maintenance, though these are not directly related to building habitability issues.

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

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Risk rating

How 167 21St Ave'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
17th percentile

Out of 660 buildings in this neighborhood, 548 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
67%
No DBI
violation
33%
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.

Building size

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

Estimated permit spend (past 7 years)

Dollar value of permits pulled at this address — large recent spend can signal deferred-maintenance catch-up.

12-Month severity forecast
No violation 59.6%
Moderate concern 29.9%
Severe concern 10.5%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

167 21St Ave apartment reviews

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The story over time

167 21St Ave event timeline

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

2026
Building Permit Apr 22
Tear off existing tar and gravel roof and install a 3-ply modified bitumen roof system, 2,600 sq ft. (with hotwork)
$50,000 · Complete
Building PermitApr 08
Install 2 hardy frame panels & a grade beam @ the rear wall @ the parking level. damage to (e) steel beam was discovered and noted in markoff pest report

See all 5 events

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

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Every record we have

Full data for 167 21St Ave 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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