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3716-3720 20Th St

Mission Dolores, SF 94110 3598010 2 units · 4 fl · 1906

A handful of records on file over the last seven years, and our model puts this building at a low risk of further maintenance problems in the next 12 months. A few records worth reading before you sign. Check whether they were closed out, and ask what was actually fixed.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Mission Dolores — not a forecast
At or below average
avg 2.9
0
FewerMore

This building has 0 novs (7y), at or below the Mission Dolores average of 2.9.

Rent & eviction protection

Is 3716-3720 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
2 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
Units2
Floors4
Year built1906
Total area6,816 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot3598010
Ownership

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

Owner name
Mailing address
3720 20th St San Francisco CA 94110
Last sale
—

Landlord portfolio

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

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Multiple entrances & addresses

Included addresses

All street addresses sharing this blocklot that are covered by this report.

3716 20th St, San Francisco, CA 94110
3718 20th St, San Francisco, CA 94110
3720 20th St, San Francisco, CA 94110
Augrented Insights
Initial analysis

The three-story multi-family residential building at 3716-3720 20th Street in Mission Dolores, owned by Robert B. Raines, was constructed in 1906 and contains two units. The property has undergone several significant improvements over the past decade, with the most recent work being a re-roofing project of the rear lower roof completed in January 2024 at a cost of $6,800. An earlier attempt to reroof the building in October 2023 was suspended. The building underwent substantial renovation in 2021, including window and door replacement, kitchen remodeling, and dry rot repairs, following a complete interior update in 2011 that included a new garage door, interior staircase, and bathroom remodel valued at $60,000. Previous improvements include bathroom remodels in 2018 and 2013, and significant electrical upgrades in 2013 with a 400-amp service installation.

The building experienced several maintenance and compliance issues, notably in 2011 when multiple violations were issued regarding peeling paint and weatherproofing problems, though these were abated by January 2012. There were also two complaints about construction work in 2018 and 2012, one regarding unauthorized demolition and construction hours, and another concerning unpermitted concrete work. The plumbing system has received attention over the years, with various improvements to bathroom fixtures, drainage systems, and mechanical room facilities between 2012 and 2018. While there have been numerous 311 calls regarding the property's vicinity, these primarily relate to street maintenance and public space issues rather than building-specific concerns. Recent building documents indicate two attempts to convert the property to three dwelling units, though both were disapproved.

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

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Risk rating

How 3716-3720 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

Lower risk — safer than most nearby

DBI rarely finds violations here. Strong maintenance history and a clean complaint record.

Typical — about average for the neighborhood

Some past violations or complaints on record. Worth asking the landlord about any open issues before signing.

Higher risk — riskier than most nearby

Elevated violation and complaint history. DBI has found issues here before and is statistically likely to again.

Neighborhood percentile
92ndpercentile

Out of 799 buildings in this neighborhood, 64 are predicted to be safer. The band is relative to this neighborhood, so a share of every neighborhood falls in each colour.

RiskiestSafest
Predicted 12-month outcome
86%
No DBI
violation
14%
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.

Building size

Total floor area — a proxy for building scale and the number of systems (plumbing, electrical, HVAC) that can fail.

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.

12-Month risk forecast
Low failure risk 14%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

3716-3720 20Th St apartment reviews

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On the map

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Buildings nearby
8 found
The story over time

3716-3720 20Th St event timeline

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

2026
DBI Complaint Jul 21
I live within 100 ft of the construction that has been going for many months next door to me. doesn¿t the city know that some people have to work from home. the constant jackhammering and cement trucks make this impossible.(311 sr 101004473117)
Building Inspection Division
Plumbing PermitJul 14
All plumbing work, including sub-slab work, for remodel project bpa#202509246036.

See all 12 events

Full history back to 2021 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 3716-3720 20Th St apartments

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

Side by side

How 3716-3720 20Th St compares to the neighborhood

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