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786 31St Ave

Central Richmond, SF 94121 1614012B 2 units · 2 fl · 1927

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 786 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 1927
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH2
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 built1927
Total area2,800 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1614012B
Ownership

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

Owner name
Wing Ho & Alice Lau Revoc T
Mailing address
Lau Wing Ho & Alice Trustee 786 31St 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 786 31st Avenue in the Central Richmond neighborhood, owned by Wing Ho & Alice Lau Revocable Trust, is a 2-story flats and duplex structure built in 1927. The property has undergone some significant maintenance work in recent years, most notably the complete replacement of galvanized water pipelines with copper pipes in April 2024, though an attempt to upgrade bathroom fixtures in June 2021 was documented but ultimately canceled.

The building's recent service calls and incidents suggest ongoing infrastructure and maintenance challenges, with particular attention needed for exterior spaces. In 2024 alone, there have been multiple instances of graffiti on public poles, issues with blocked driveways requiring parking enforcement (two citations issued in August 2024), and problems with an overgrown vegetation complaint (June 2024). A collapsed sidewalk that has been fenced since 2008 was reported in July 2024, along with a currently open case regarding a tree/shrub/bush blocking the sidewalk. The property has also experienced plumbing issues in the past, with a sewage backup incident recorded in December 2022. While a fire-related incident is noted in the records, it was classified as a false alarm with no injuries reported.

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

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Risk rating

How 786 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
89th percentile

Out of 2250 buildings in this neighborhood, 248 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
91%
No DBI
violation
9%
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.

Estimated permit spend (past 7 years)

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

Building age

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

DBI complaint rate, owner's portfolio

Per-building complaint rate across the owner's portfolio.

12-Month severity forecast
No violation 86.2%
Moderate concern 10.8%
Severe concern 3.0%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

786 31St Ave apartment reviews

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The story over time

786 31St Ave event timeline

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

2024
Plumbing Permit Apr 18
Work category: 2pa; replace the existing galvanized water pipelines with copper pipe
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 786 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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