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3659-3677 20Th St

Eureka Valley/Dolores Heights, SF 94110 3608060 20 units · 2 fl · 1906

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
At or below average
avg 1.3
1
FewerMore

This building has 1 novs (7y), at or below the Eureka Valley/Dolores Heights average of 1.3.

Rent & eviction protection

Is 3659-3677 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 1906
2 or more units
20 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.

Statewide backstop · AB 1482

California Tenant Protection Act of 2019

Even when a building isn't covered by local rent stabilization, the statewide Tenant Protection Act (AB 1482) may still apply. It caps annual rent increases and requires the landlord to state a legal reason to end most tenancies.

15+ years since occupancy
Built 1906
Annual rent increase cap
5% + CPI, max 10%
Just-cause eviction
After 12 months
Local rent control likely takes priority. This building appears to fall under the local ordinance above, which is stronger than AB 1482. Where a local just-cause ordinance applies, its rules govern instead of the state cap.

AB 1482 does not apply to single-family homes and condos unless owned by a corporation, REIT, or an LLC with a corporate member; to owner-occupied duplexes; or to deed-restricted affordable housing. The Act is in effect until January 1, 2030. Not legal advice — see the California landlord–tenant guide.

Building characteristics
Units20
Floors2
Year built1906
Total area12,814 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3608060
Ownership

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

Mailing address
268 Bush St # 1688 San Francisco CA 94104
Last sale
032420

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.

3659 20th St, San Francisco, CA 94110
3673 20th St, San Francisco, CA 94110
3665 20th St, San Francisco, CA 94110
3667 20th St, San Francisco, CA 94110
3661 20th St, San Francisco, CA 94110
3675 20th St, San Francisco, CA 94110
3669 20th St, San Francisco, CA 94110
3663 20th St, San Francisco, CA 94110
3677 20th St, San Francisco, CA 94110
3671 20th St, San Francisco, CA 94110
Augrented Insights
Initial analysis

The 20-unit, 2-story multi-family residential building at 3659-3677 20th Street, constructed in 1906, has undergone significant renovations and faced various maintenance challenges over recent years. Most notably, the building completed its mandatory Tier-3 soft-story retrofit in July 2024 at a cost of $45,000, demonstrating compliance with seismic safety requirements. Recent improvements include a reroofing project initiated in April 2024 ($36,973), and substantial interior work in 2021-2022 involving the creation of three ADUs in the ground floor parking area ($230,345). The building has a history of unit upgrades, with multiple renovations between 2013-2020 involving kitchen and bathroom remodels, electrical upgrades, and plumbing improvements across several units.

The property has experienced several tenant-related issues that required attention, including multiple instances of mold (2016-2017), a rodent infestation (2014), and various maintenance complaints. Fire safety has been a concern, with recent violations noted for sleeping area requirements (2023), though several fire-related complaints were found to have no merit. The building's systems have been monitored through regular inspections, with recent fire inspections in 2023-2024 addressing sprinkler systems, alarm systems, and sleeping area requirements. Historical violations from 2002 regarding fire escape maintenance and fire extinguisher certification were resolved in 2017. In 2019, one tenant received a buyout of $30,000. While the building has faced various maintenance challenges over the years, recent improvements suggest active management and compliance with current building codes and safety requirements.

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

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Risk rating

How 3659-3677 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
2th percentile

Out of 1278 buildings in this neighborhood, 1252 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
19%
No DBI
violation
81%
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.

DBI tenant complaints (past 7 years)

Formal complaints tenants filed with DBI about this building over 7 years.

12-Month severity forecast
No violation 15.8%
Moderate concern 69.4%
Severe concern 14.9%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

3659-3677 20Th St apartment reviews

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The story over time

3659-3677 20Th St event timeline

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

2025
Planning Record Dec 18
Request for zoning verification letter
Closed - Issued
Fire ComplaintSep 25
Extinguishers

See all 19 events

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

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Every record we have

Full data for 3659-3677 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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