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521-523 30Th St

Glen Park, SF 94131 6651029 3 units · 2 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 Glen Park
At or below average
avg 1.4
0
FewerMore

This building has 0 novs (7y), at or below the Glen Park average of 1.4.

Rent & eviction protection

Is 521-523 30Th 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
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
Units3
Floors2
Year built1900
Total area2,404 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot6651029
Ownership

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

Owner name
Chun Lynette
Mailing address
523 30th St San Francisco CA 94131
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.

523 30th St, San Francisco, CA 94131
521 30th St, San Francisco, CA 94131
Augrented Insights
Initial analysis

The property at 521-523 30th Street in Glen Park is a 2-story, 3-unit multi-family residential building constructed in 1900, currently owned by Chun Lynette. The building has undergone several significant maintenance and improvement projects over the years, most notably a substantial retaining wall repair in 2023 costing $80,000 at the rear west property line. Other significant improvements include a complete reroofing in 2009 ($11,500), a kitchen remodel in 2008 at 523 ($19,748) that included comprehensive updates to cabinets, countertops, appliances, and associated electrical and plumbing work, and garden shed renovations in 2003. The building has had regular maintenance performed on major systems, including two water heater replacements in 2014, with one permit remaining in expired status.

Recent incidents in 2024 have primarily involved exterior maintenance issues, particularly regarding graffiti and garbage management in the surrounding area, with multiple 311 calls related to public graffiti and overflowing city garbage cans. The property underwent a significant rear yard variance modification approximately in 2006-2008, involving moving a portion of the house to create proper yard setbacks. While there was one fire-related incident in 2006 regarding combustible vegetation near the structure, it appears to have been resolved immediately. No tenant buyouts have been recorded at this specific property address, though a separate address (23 Laidley Street) shows a buyout in 2018 involving two tenants for $20,000. The building's maintenance history suggests regular upkeep, with the most recent significant structural work being the 2023 retaining wall repair, indicating attention to critical infrastructure components.

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

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Risk rating

How 521-523 30Th 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
27th percentile

Out of 364 buildings in this neighborhood, 266 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
66%
No DBI
violation
34%
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.

Neighborhood location

Precise location is a proxy for neighborhood-level risk — some SF blocks have systematically higher DBI activity.

Building permits, owner's portfolio

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

Building age

Older buildings tend to have more maintenance challenges; SF's pre-1906 earthquake housing stock carries distinct risk.

12-Month severity forecast
No violation 60.5%
Moderate concern 28.0%
Severe concern 11.5%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
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The story over time

521-523 30Th St event timeline

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

2023
Building Permit May 19
Retaining wall repair at rear, west property line
$80,000 · Complete

See all 1 events

Full history back to 2023 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 521-523 30Th St apartments

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

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