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2840 Anza St

Central Richmond, SF 94121 1525023 2 units · 2 fl · 1904

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 Central Richmond
At or below average
avg 0.5
0
FewerMore

This building has 0 novs (7y), at or below the Central Richmond average of 0.5.

Rent & eviction protection

Is 2840 Anza 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 1904
2 or more units
2 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
Units2
Floors2
Year built1904
Total area2,040 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1525023
Ownership

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

Owner name
Jan Lam & Diana Wong Tang R
Mailing address
Jan Lam & Diana Wong Tang T 446 21St Ave San Francisco CA 94121
Last sale
000000

Landlord portfolio

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

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Augrented Insights
Initial analysis

The two-unit residential building at 2840 Anza Street in San Francisco's Central Richmond neighborhood is a two-story flats and duplex structure built in 1904, currently owned by Jan Lam & Diana Wong Tang R. The building's only recorded structural maintenance was a reroofing project completed in 2012 at a cost of $7,000, for which the permit was issued and presumably completed.

The property has experienced notable parking-related issues in recent years, particularly during 2023-2025, with multiple incidents involving abandoned vehicles, vehicles blocking sidewalks, and double parking. The most recent incidents include a bicycle lane blocking complaint in January 2025, and a series of abandoned vehicle and parking enforcement calls throughout 2024. There were also two separate garbage and debris reports involving furniture on the street in August and November 2024. The frequency of parking-related incidents suggests ongoing challenges with street management in the immediate vicinity, though these issues appear to be primarily external to the building itself.

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

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Risk rating

How 2840 Anza 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
43th percentile

Out of 2250 buildings in this neighborhood, 1282 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
84%
No DBI
violation
16%
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 age

Older buildings tend to have more maintenance challenges; SF's pre-1906 earthquake housing stock carries distinct risk.

Neighborhood location

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

Construction spend, owner's portfolio

Estimated permit value across all of this owner's buildings.

12-Month severity forecast
No violation 74.9%
Moderate concern 19.9%
Severe concern 5.3%
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

2840 Anza 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 2840 Anza 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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