Free SF apartment background check

300-310 28Th Ave

Central Richmond, SF 94121 1406040 6 units · 2 fl · 1923

This building has far more open problems than almost any other in the neighborhood. A handful of unresolved issues. Worth a careful walk-through and pointed questions.

NOVs (7y) vs. neighborhood
Compared to a typical building in Central Richmond
Above average
avg 0.5
3
FewerMore

This building has 3 novs (7y), above the Central Richmond average of 0.5.

Rent & eviction protection

Is 300-310 28Th 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 1923
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
Floors2
Year built1923
Total area6,150 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1406040
Ownership

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

Owner name
William & Patricia Mandel T
Mailing address
Mandel William & Patricia , 112 Lyon St San Francisco CA 94117
Last sale
000000

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.

310 28th Ave, San Francisco, CA 94121
302 28th Ave, San Francisco, CA 94121
308 28th Ave, San Francisco, CA 94121
306 28th Ave, San Francisco, CA 94121
304 28th Ave, San Francisco, CA 94121
300 28th Ave, San Francisco, CA 94121
Augrented Insights
Initial analysis

The three-story, 6-unit apartment building at 300-310 28th Avenue in San Francisco's Central Richmond district is a 1923 wood-frame structure that has undergone several significant improvements over the years, particularly focusing on safety and structural integrity. Most notably, the building completed its mandatory soft-story retrofit program (Classified as Tier 3 with CFC Issued), which included a $20,000 seismic retrofit of the lower floor in 2015 to comply with San Francisco Building Code requirements. The building has experienced recurring maintenance and safety issues, with the most recent concerns primarily stemming from 2020-2021. These included structural damage from water intrusion affecting bedroom windows, mold issues in multiple units, and stair repair violations that had to be addressed through building permits. The property has also undergone several infrastructure improvements, including a sewer line replacement in 2021, sewer repair in 2015, and a 200-amp electrical service upgrade in 2009.

The building has a history of addressing key maintenance issues, including a rear stair repair project completed in 2020 and various plumbing improvements. While the property had several violations noted between 2004 and 2020, including issues with self-closing door devices, egress obstruction, and security requirements, these were generally resolved by October 2021. Historical maintenance work has included window repairs, sill replacement, and general building upkeep, with the most recent work focusing on water intrusion issues and infrastructure upgrades. Recent 311 calls related to the property primarily concern external matters such as sidewalk maintenance and parking issues, rather than building-specific concerns. The building's ownership, under William & Patricia Mandel T, appears to have maintained compliance with major safety requirements, as evidenced by the completion of the soft-story retrofit program and other significant structural improvements.

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

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Risk rating

How 300-310 28Th 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
5th percentile

Out of 2250 buildings in this neighborhood, 2138 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
39%
No DBI
violation
61%
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.

DBI tenant complaints (past 7 years)

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

Building size

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

12-Month severity forecast
No violation 29.1%
Moderate concern 48.5%
Severe concern 22.4%
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

300-310 28Th Ave event timeline

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

2026
311 Request Jun 17
Abandoned vehicle
Parking Enforcement
311 RequestMar 16
Blocking driveway cite only

See all 11 events

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

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Every record we have

Full data for 300-310 28Th 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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