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770-772 18Th Ave

Central Richmond, SF 94121 1660028 2 units · 4 fl · 1913

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 770-772 18Th 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 1913
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
Floors4
Year built1913
Total area5,273 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1660028
Ownership

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

Owner name
Lei Ai Ren & Wu Shu Zhen
Mailing address
750 Lawton St San Francisco CA 94122
Last sale
072111

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.

770 18th Ave #lower, San Francisco, CA 94121
772 18th Ave #upper, San Francisco, CA 94121
Augrented Insights
Initial analysis

The 770-772 18th Avenue property is a four-story duplex multi-family residential building constructed in 1913 in San Francisco's Central Richmond neighborhood, currently owned by Lei Ai Ren & Wu Shu Zhen. The building underwent significant renovations in 2007-2009, including the installation of a comprehensive fire sprinkler system throughout the building ($32,500), complete electrical upgrades (200-amp service, lighting, and receptacles), and bathroom and laundry area modifications. Several building permits were properly completed and received final inspections during this period, though there were some permit renewals required in 2009 for previous work completed in 2007 and 2008.

Of particular note are two significant planning and compliance issues: a complaint was filed in May 2009 regarding an allegedly illegal third unit that was ultimately abated by June 2009, and there was a 2007 complaint about possible unauthorized height modifications. The building has experienced at least one notable maintenance issue in recent years, with a sewage backup incident reported in March 2022 that was subsequently resolved by PUC Sewer Operations. The property's renovation history includes addressing various regulatory requirements, such as zoning approvals for a four-foot rear setback modification, though there were some expired permits in the records requiring follow-up procedures. While the building underwent extensive modernization, particularly regarding safety systems like sprinklers, there were occasional compliance challenges that required attention.

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

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Risk rating

How 770-772 18Th 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
42th percentile

Out of 2250 buildings in this neighborhood, 1305 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.

Number of floors

Building height affects maintenance complexity and is one of the size signals the model uses.

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 77.5%
Moderate concern 18.3%
Severe concern 4.2%
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

770-772 18Th Ave 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 770-772 18Th 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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