Free SF apartment background check

3733-3735 20Th St

Eureka Valley/Dolores Heights, SF 94110 3607070 2 units · 2 fl · 1900

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 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 3733-3735 20Th 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
2 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
Units2
Floors2
Year built1900
Total area2,656 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3607070
Ownership

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

Owner name
Matthew Gelbman Revoc Trust
Mailing address
Gelbman Jodi & Matthew Co-t 3735 20Th St San Francisco CA 94110
Last sale
111319

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.

3733 20th St, San Francisco, CA 94110
3735 20th St, San Francisco, CA 94110
Augrented Insights
Initial analysis

The property at 3733-3735 20th Street is a two-unit, two-story multi-family residential building located in the Eureka Valley/Dolores Heights neighborhood. Built in 1900 and currently owned by the Matthew Gelbman Revocable Trust, this historic flats and duplex building has undergone several significant renovations and maintenance work over the past decade. Most recently, in January 2024, the second-floor bathroom was remodeled, including both plumbing and electrical work, representing the latest in a series of updates to the building's amenities. The property has seen substantial infrastructure improvements, including major plumbing upgrades in 2016 with the installation of a new fire sprinkler system, main water service replacement, and bathroom renovations. Electrical systems have also received significant attention, with comprehensive rewiring projects in 2014-2016 covering multiple rooms and systems.

Several important proposed improvements were either canceled or withdrawn, including a 2019 project to construct a new garage with curb cut and driveway (estimated at $310,000), and an attempted shared gate installation in 2020. The building has required ongoing maintenance to address basic building systems, including window repairs and replacements due to deterioration and lead paint hazards in 2018, and various plumbing and electrical updates to ensure modern standards. Recent 311 calls near the property primarily concern external maintenance issues such as graffiti and street cleaning needs, rather than interior building concerns. Interestingly, a tree maintenance issue was reported in September 2023, with one tree being posted for removal. The property has maintained compliance with permitting requirements, though some permits (such as for a kitchen remodel in 2014) have expired without recorded completion.

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 3733-3735 20Th 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
93th percentile

Out of 1278 buildings in this neighborhood, 89 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
91%
No DBI
violation
9%
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 (ZIP code)

The ZIP code captures local housing market and enforcement patterns that affect all buildings in the area.

Building age

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

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 88.8%
Moderate concern 8.5%
Severe concern 2.7%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

3733-3735 20Th 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

3733-3735 20Th St event timeline

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

2024
Building Permit Jan 10
2nd floor remodel bathroom in kind. no exterior changes proposed. no moving walls.
$20,000 · Complete
Plumbing PermitJan 10
Change out old fixtures plumbing for new in like kind.

See all 5 events

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

Unlock complete timeline
Every record we have

Full data for 3733-3735 20Th 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 3733-3735 20Th St
Get alerted the moment a new violation or complaint is filed.