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4323 20Th St

Eureka Valley/Dolores Heights, SF 94114 2751028 12 units · 4 fl · 1966

This building has far more open problems than almost any other in the neighborhood. Renters here report frequent, slow-to-fix problems. Get repair promises in writing and check the unit before signing.

NOVs (7y) vs. neighborhood
Compared to a typical building in Eureka Valley/Dolores Heights
Above average
avg 1.3
22
FewerMore

This building has 22 novs (7y), above the Eureka Valley/Dolores Heights average of 1.3.

Rent & eviction protection

Is 4323 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 1966
2 or more units
12 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
Units12
Floors4
Year built1966
Total area10,229 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot2751028
Ownership

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

Owner name
Farmas Family 2006 Trust
Mailing address
Dino S & Maria Farmas Trust P O Box 117314 Burlingame CA 94011
Last sale
071699

Landlord portfolio

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

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Augrented Insights
Initial analysis

4323 20th Street is a 4-story, 12-unit multi-family residential building constructed in 1966, currently owned by the Farmas Family 2006 Trust and classified as an Apartment building with 5 to 14 units. The property has undergone several significant improvements over the years, most notably completing a mandatory soft-story retrofit in 2016 at a cost of $150,000, achieving compliance with San Francisco's seismic safety requirements. The building's maintenance history shows attention to both structural and safety concerns, with multiple fire safety inspections and corrections made between 2013 and 2019 addressing issues with alarm systems, extinguishers, and exit maintenance. A substantial cluster of building violations was documented in September 2006, including problems with weatherproofing, fire escape ladders, guardrails, stairs, electrical outlets, and lead paint hazards, though all were abated by November 2006.

Recent activity at the property includes a current active complaint filed in November 2022 regarding common areas, and multiple 311 calls in 2024 concerning garbage and debris issues, with several cases involving furniture removal from the vicinity. A proposed development currently under review at the adjacent address (4327 20th St) seeks to replace a retaining wall/garden bed with a two-car garage and rooftop deck. The building's historical permits show various maintenance work, including window and patio door replacement in 1998 (permit expired) and reroofing in 1993 (permit expired), while street space permits were issued in 2016. The property's records indicate regular attention to fire safety systems, with most violations marked as "Condition Corrected," though the pattern of violations suggests a period of considerable maintenance challenges in the mid-2000s.

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

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Risk rating

How 4323 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
6th percentile

Out of 1278 buildings in this neighborhood, 1201 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
30%
No DBI
violation
70%
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.

NOV rate, owner's portfolio

Per-building NOV rate across everything this owner manages — high rates signal pattern neglect.

12-Month severity forecast
No violation 15.7%
Moderate concern 22.5%
Severe concern 61.9%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

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On the map

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The story over time

4323 20Th St event timeline

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

2026
Building Permit May 15
Reroofing: remove the (e) roof and install modified bitumen with 2 layers of base. no hot works.
$28,000 · Complete
Building Violation (NOV)Mar 04
Building violation

See all 14 events

Full history back to 2024 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 4323 20Th St apartments

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

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

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