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381-383 31St Ave

Central Richmond, SF 94121 1402016 2 units · 2 fl · 1985

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 381-383 31St Ave 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 1985
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH2
Not rent-controlled. Buildings constructed after 1978 are generally exempt from SF rent increase limits under the Costa-Hawkins Act.

Based on SF Assessor records. Not legal advice — confirm with the SF Rent Board.

Building characteristics
Units2
Floors2
Year built1985
Total area3,342 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1402016
Ownership

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

Owner name
Tun Stanley J & Nancy K
Mailing address
1501 Diamond Country Dr Reno NV 89521
Last sale
000000

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.

383 31st Ave, San Francisco, CA 94121
381 31st Ave, San Francisco, CA 94121
Augrented Insights
Initial analysis

The two-unit residential building at 381-383 31st Avenue in the Central Richmond neighborhood is a two-story structure built in 1985, currently owned by Stanley J. and Nancy K. Tun. The building has undergone several significant improvements since its construction, with the most recent being a substantial $37,100 reroofing project completed in March 2023, representing ongoing maintenance of the property'scritical infrastructure. Prior to this, in 2021, the property received an upgrade to its windows, with the installation of seven new energy-efficient E-Series windows with a U-factor of 0.30 or better, replacing older non-street-facing aluminum units. The building's window improvements began earlier in 2006 when permits were pulled for replacing ten street-visible windows, switching from aluminum to wood composite materials, although these permits ultimately expired without record of completion.

The property's permitting history indicates proper attention to maintenance and upgrades, particularly regarding energy efficiency improvements. The only recorded incident affecting the property was a sidewalk obstruction complaint in January 2019 involving a mobile storage container, which was promptly resolved by the Department of Public Works. This isolated incident had no direct impact on the building's safety or resident experience and was handled through standard municipal procedures.

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

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Risk rating

How 381-383 31St Ave'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
88th percentile

Out of 2250 buildings in this neighborhood, 270 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
90%
No DBI
violation
10%
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.

Notices of Violation, owner's portfolio

DBI NOVs across all buildings this owner is registered on — a signal of systemic maintenance issues across the portfolio.

Property class: single-family home

Single-family homes (class A) have distinct violation and complaint patterns from multi-family buildings.

12-Month severity forecast
No violation 91.4%
Moderate concern 6.8%
Severe concern 1.8%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

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The story over time

381-383 31St Ave event timeline

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

2023
Building Permit Mar 21
Reroofing
$37,100 · Complete

See all 2 events

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

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Every record we have

Full data for 381-383 31St Ave 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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