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3827-3831 20Th St

Eureka Valley/Dolores Heights, SF 94114 3606078 3 units · 3 fl · 1911

This building has a higher-than-average number of open problems nearby. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.

NOVs (7y) vs. neighborhood
Compared to a typical building in Eureka Valley/Dolores Heights
At or below average
avg 1.3
0
FewerMore

This building has 0 novs (7y), at or below the Eureka Valley/Dolores Heights average of 1.3.

Rent & eviction protection

Is 3827-3831 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 1911
2 or more units
3 units
Property type
Multi-Family Residential
Zoning
RM1
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
Units3
Floors3
Year built1911
Total area3,784 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3606078
Ownership

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

Owner name
Singh-Anderson Family Trust
Mailing address
Raj Singh & Renata Anderson 4407 Balcones Dr Austin TX 78731
Last sale
072721

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.

3829 20th St, San Francisco, CA 94114
3831 20th St, San Francisco, CA 94114
3827 20th St, San Francisco, CA 94114
Augrented Insights
Initial analysis

The 3-unit multi-family residential building at 3827-3831 20th Street, owned by the Singh-anderson Family Trust, was constructed in 1911 and stands three stories tall in the Eureka Valley/Dolores Heights neighborhood. The property has undergone several significant maintenance and infrastructure improvements over the years, with the most recent being a sewer lateral and house trap replacement in April 2024, completed plumbing work, and an electrical service conversion to underground lines in 2004. The building's roof has been maintained consistently, with reroofing work completed in 2020 (at $7,000), 2020 ($3,000), and 2016 ($2,800). In 2009, all eight windows in unit #3829 were replaced with energy-efficient units (U-factor .67).

The building experienced a cluster of violations in June 2008 related to lead paint concerns, weatherproofing issues, and interior surface maintenance, however, all these violations were abated by December 2008. The property has maintained an active pattern of responding to infrastructure needs, including multiple street space permits and several park-related service requests in recent years. Between 2022 and 2024, the building has faced various neighborhood issues including graffiti, excessive noise, and parking concerns, though these are not directly related to the building's condition or management. Recent building maintenance records show proper upkeep of both interior and exterior elements, with no active violations or complaints on file as of now. The regularity of roofing work and the recent sewer infrastructure upgrade suggest ongoing investment in the building's maintenance and infrastructure systems.

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

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Risk rating

How 3827-3831 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
56th percentile

Out of 1278 buildings in this neighborhood, 562 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
78%
No DBI
violation
22%
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.

Neighborhood (ZIP code)

The ZIP code captures local housing market and enforcement patterns that affect all buildings in the area.

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 severity forecast
No violation 58.8%
Moderate concern 20.5%
Severe concern 20.7%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
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The story over time

3827-3831 20Th St event timeline

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

2026
311 Request Apr 03
Blocking driveway cite only
Parking Enforcement

See all 4 events

Full history back to 2020 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 3827-3831 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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