Free SF apartment background check

27-29 Bonita St

Russian Hill, SF 94109 0550011 5 units · 3 fl · 1909

This building has a higher-than-average number of open problems nearby. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.

NOVs (7y) vs. neighborhood
Compared to a typical building in Russian Hill
At or below average
avg 1.9
0
FewerMore

This building has 0 novs (7y), at or below the Russian Hill average of 1.9.

Rent & eviction protection

Is 27-29 Bonita 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 1909
2 or more units
5 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
Units5
Floors3
Year built1909
Total area6,172 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0550011
Ownership

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

Owner name
Jackson Lew & Nancy Young T
Mailing address
Lew Jackson Shang & Young N 721 Santa Susana St Sunnyvale CA 94085
Last sale
020119

Landlord portfolio

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

Unlock complete report
Multiple entrances & addresses

Included addresses

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

27 Bonita St, San Francisco, CA 94109
1530 Vallejo St, San Francisco, CA 94109
1528 Vallejo St, San Francisco, CA 94109
29 Bonita St, San Francisco, CA 94109
1526 Vallejo St, San Francisco, CA 94109
Augrented Insights
Initial analysis

The three-story, five-unit multi-family residential building at 27-29 Bonita Street in Russian Hill, owned by Jackson Lew & Nancy Young T, is a 1909 flats building that has undergone significant renovations over the past decade. Between 2011 and 2019, several substantial improvements were made, including comprehensive unit remodels, kitchen and bathroom renovations, electrical system upgrades, and compliance work. Notable projects included a $58,000 renovation in 2016 to address dry rot, roof leaks, and window issues on the third floor, and a $35,000 kitchen remodel with lighting upgrades the same year. The building faced multiple violations in 2015 related to roof issues, weather proofing, stair repairs, and plumbing concerns, though these were ultimately abated by May 2018. Recent records from late 2024 show recurring issues with garbage and debris outside the building, with multiple reports of abandoned garbage, loose debris, and human waste on the street. The property has also generated several fire-related complaints between 2009 and 2024, primarily regarding shared spaces, though these were either deferred, duplicated, or had conditions corrected. While the building has undergone substantial improvements over the years, including a reroofing in 2017 costing $8,000, the recent history of garbage-related complaints suggests ongoing maintenance challenges in the surrounding area.

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

Free account unlocks the full analysis — plus 2× more records across all data categories and the complete landlord portfolio.
Risk rating

How 27-29 Bonita 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
47th percentile

Out of 1133 buildings in this neighborhood, 600 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
73%
No DBI
violation
27%
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.

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 54.7%
Moderate concern 21.2%
Severe concern 24.1%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

27-29 Bonita St apartment reviews

Real experiences from people who have lived here. Share yours to help other renters decide.

Share your experience — Help other renters by leaving an honest apartment review

Loading reviews…

On the map

Compare nearby alternatives

This building and nearby alternatives, color-coded by risk level. Click any marker to explore.

Buildings nearby
Loading…
The story over time

27-29 Bonita St event timeline

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

2019
Building Permit Aug 20
Street space
Issued

See all 1 events

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

Unlock complete timeline
Every record we have

Full data for 27-29 Bonita St apartments

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

Still apartment hunting in SF?

Look up the next apartment before you sign

Search any SF address free — no account needed to see the risk rating.

Simple pricing

Get the complete picture

Every plan unlocks the complete report: all 13 SF datasets, full history, landlord portfolio, and PDF & Excel exports.

Report Bundle

For the buildings you're deciding on right now

$10 one-time

~$3.33 per building. No subscription ever. Each credit unlocks one building's premium report for 30 days.

  • 3 full AI-powered reports
  • Download PDF reports
  • Advanced safety analysis
  • Compare multiple buildings
  • Credits never expire until you use them
  • Full public records (200 rows per dataset)
Buy 3 Reports — $10

Apartment Hunter

For a wide search across many buildings

$39 one-time

30 reports — ~$1.30 each. No subscription ever.

  • 30 full AI-powered reports
  • Download PDF reports
  • Advanced safety analysis
  • Compare multiple buildings
  • Credits never expire until you use them
  • Full public records (200 rows per dataset)
Buy 30 Reports — $39

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

Watch 27-29 Bonita St
Get alerted the moment a new violation or complaint is filed.