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4082 20Th St

Eureka Valley/Dolores Heights, SF 94114 3601025 2 units · 1 fl · 1905

Nothing on record for this building in the last seven years, and our model puts it at a low risk of maintenance problems over the next 12 months. No public enforcement record to go on. Walk the building, ask the current tenants how repairs get handled, and get any promises in writing.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Eureka Valley/Dolores Heights — not a forecast
At or below average
avg 1.4
0
FewerMore

This building has 0 novs (7y), at or below the Eureka Valley/Dolores Heights average of 1.4.

Rent & eviction protection

Is 4082 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 1905
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH1
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 1905
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
Floors1
Year built1905
Total area1,350 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot3601025
Ownership

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

Mailing address
Jack Lasner, Trustee 4082 20Th St San Francisco CA 94114
Last sale

Landlord portfolio

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

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Augrented Insights
Initial analysis

The two-unit residential building at 4082 20th Street in the Eureka Valley/Dolores Heights neighborhood is a 1-story flats and duplex structure built in 1905, currently owned by the Jack S Lasner Revocable Trust. The building's maintenance record shows two significant events: a reroofing project undertaken in 2013 costing $7,800, and more concerningly, fire damage repair work that was initiated in 1984 but the specific costs were not documented in the permit system.

The property has experienced a notable number of parking-related issues in recent years, with six documented incidents between 2023 and 2024 involving vehicles blocking driveways or parking on sidewalks. Most of these cases were resolved through citations or warnings from parking enforcement officers. The building's immediate surroundings have also experienced periodic street maintenance challenges, as evidenced by two mechanical street sweeping missed route complaints in 2021, though these were addressed with intervention from street cleaning authorities. Other incidents in the vicinity include an excessive noise complaint filed in November 2024 (currently open), an abandoned loose garbage issue resolved by Recology in January 2023, a defaced parking sign repaired in November 2021, and a resolved sidewalk parking issue in April 2023. While the building's age and history suggest it has weathered various challenges over the decades, the most recent issues primarily relate to parking and street maintenance rather than structural or safety concerns.

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

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Risk rating

How 4082 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
66thpercentile

Out of 1278 buildings in this neighborhood, 435 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
82%
No DBI
violation
18%
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 location

Precise location is a proxy for neighborhood-level risk — some SF blocks have systematically higher DBI activity.

Building permits, owner's portfolio

Permits pulled across all of this owner's buildings over 7 years.

Estimated permit spend (past 7 years)

Dollar value of permits pulled at this address — large recent spend can signal deferred-maintenance catch-up.

12-Month risk forecast
Low failure risk 18%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

4082 20Th St apartment reviews

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On the map

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The story over time

4082 20Th St event timeline

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

No dated public records on file yet.
Every record we have

Full data for 4082 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 4082 20Th St compares to the neighborhood

This building against comparable properties in Eureka Valley/Dolores Heights. 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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