Free SF apartment background check

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.

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.

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

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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
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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This building and nearby alternatives, color-coded by risk level. Click any marker to explore.

The story over time

3716-3720 20Th St event timeline

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

2026
Electrical Permit Sep 11
Work on entire building -2 units plus house with service upgrade from 125 to 200 3718 20th/3720 20th -full lutron lighting control system in the entire building. there will be approx: -133 plugs -66 circuits -14 smokes -122 recessed cans -76 pendants and sconces -code ev hookup
Issued
Plumbing PermitSep 04
Unit 3718: new kitchen & 3 new bathrooms, laundy,. unit 3720: new kitchen, 2 new bathrooms, laundry. sub soil & undrergroud plumbing with french drain for stormwater

See all 14 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

This building against comparable properties in Mission Dolores. Toggle filters to narrow the peer group.

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

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