Free SF apartment background check

150 28Th St

Noe Valley, SF 94131 6600013 12 units · 4 fl · 1965

A handful of records on file over the last seven years, and our model predicts a high risk of further maintenance problems in the next 12 months. A few records worth reading before you sign. Check whether they were closed out, and ask what was actually fixed.

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.

The bar and the rating point different ways because they measure different things: the bar counts DBI violations already on file, the rating forecasts the next 12 months.

Rent & eviction protection

Is 150 28Th 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 1965
2 or more units
12 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.

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 1965
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
Units12
Floors4
Year built1965
Total area9,963 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot6600013
Ownership

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

Mailing address
Kwok Chung Wong & Har Kwan Po Box 210209 San Francisco CA 94121
Last sale
November 15, 2007

Landlord portfolio

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

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Augrented Insights
Initial analysis

The 12-unit, two-story apartment building at 150 28th Street in Noe Valley, owned by Kwok Chung Wong & Kwan Luk, has undergone several significant improvements since its construction in 1965. Most recently, in 2024, Unit #6 received substantial renovations including kitchen and bathroom updates ($35,000) and electrical system improvements, along with the complete replacement of all twelve subpanels ($36,500). The building has successfully completed its mandatory soft-story retrofit (Tier 3) to meet seismic safety standards, with work completed in 2019 at a cost of $88,000. Recent maintenance work includes a complete reroofing project completed in 2024.

The building has experienced various maintenance and safety-related issues over the years. A periodic health and safety inspection was opened in 2023, and recent fire safety complaints in July 2023 regarding sprinkler systems and hazardous materials were resolved, with one marked as having "No Merit." Historical complaints include water leaks, elevator outages, and plumbing issues in 2017 and 2012, though these were all subsequently addressed. The property has maintained active compliance with building codes, as evidenced by regular updates to critical systems such as plumbing (including house trap work in 2022) and electrical infrastructure. The building's recent history shows attention to maintenance and upgrades, with multiple units receiving individual improvements, though some recurring issues such as parking violations in the surrounding area are noted through 311 calls.

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

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Risk rating

How 150 28Th 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
6thpercentile

Out of 1879 buildings in this neighborhood, 1766 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
41%
No DBI
violation
59%
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.

DBI tenant complaints (past 7 years)

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

12-Month risk forecast
High failure risk 59%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

150 28Th St apartment reviews

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On the map

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The story over time

150 28Th St event timeline

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

2024
Building Permit Oct 10
Unit #6 replace kitchen & bathroom cabinets, countertops. all in kind
$25,000 · Complete
Plumbing PermitOct 10
Update kitchen and bathroom, fixtures, add d/w.

See all 10 events

Full history back to 2019 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 150 28Th St apartments

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

Side by side

How 150 28Th St compares to the neighborhood

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

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