Free SF apartment background check

4501-4503 18Th St

Eureka Valley/Dolores Heights, SF 94114 2691054 3 units · 2 fl · 1906

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 Eureka Valley/Dolores Heights
At or below average
avg 1.3
0
FewerMore

This building has 0 novs (7y), at or below the Eureka Valley/Dolores Heights average of 1.3.

Rent & eviction protection

Is 4501-4503 18Th 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 1906
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 built1906
Total area1,840 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot2691054
Ownership

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

Owner name
Clement & Cobina Chu Revoc
Mailing address
Clement Chu & Cobina Chu Tr 26 Cotella Ct Alameda CA 94502
Last sale
000000

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.

200 Douglass St #res. G/f, San Francisco, CA 94114
4503 18th St #res Upper, San Francisco, CA 94114
4501 18th St #com'l G/f, San Francisco, CA 94114
Augrented Insights
Initial analysis

This two-story mixed-use building at 4501-4503 18th Street, constructed in 1906, contains three residential units and commercial space, currently owned by the Clement & Cobina Chu Revocable Trust. The building has undergone several significant improvements over the past 15 years, including a $9,000 reroofing project in 2018 and comprehensive renovations in 2008-2009 that involved kitchen and bathroom remodels, window replacements, electrical upgrades, and siding repairs at the adjacent 200 Douglass Street address. More recent maintenance includes a meter panel replacement in 2021 due to damage to the wooden utility pole-mounted panel.

The property has experienced various maintenance and environmental challenges in recent years, particularly in 2024-2025, with multiple 311 calls related to tree maintenance issues, graffiti (both public and property-specific), and sidewalk debris. Three open cases from January 2025 involve tree-related problems (overgrown sidewalk, hanging limb) and public graffiti, while previous reports from October-December 2024 documented various instances of garbage and debris, as well as encampment-related concerns. The building's safety record shows two minor fire-related incidents involving barbecue smoke and a carbon monoxide detector activation, neither resulting in injuries. The property's documented improvements suggest ongoing maintenance and upgrading efforts, while the recent external environmental issues indicate challenges related to the immediate neighborhood's public space maintenance.

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 4501-4503 18Th 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
21th percentile

Out of 1278 buildings in this neighborhood, 1010 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
56%
No DBI
violation
44%
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.

Property class: apartment building

Apartment building — this property classification influences expected violation rates.

Estimated permit spend (past 7 years)

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

Neighborhood location

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

12-Month severity forecast
No violation 57.3%
Moderate concern 31.7%
Severe concern 11.1%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

4501-4503 18Th 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

4501-4503 18Th St event timeline

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

2026
311 Request May 26
Blocked sidewalk
display merchandise
311 RequestMar 30
Not offensive

See all 8 events

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

Unlock complete timeline
Every record we have

Full data for 4501-4503 18Th 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 4501-4503 18Th St
Get alerted the moment a new violation or complaint is filed.