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175-177 18Th Ave

Lake Street, SF 94121 1378010 2 units · 3 fl · 1914

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 Lake Street
At or below average
avg 0.6
0
FewerMore

This building has 0 novs (7y), at or below the Lake Street average of 0.6.

Rent & eviction protection

Is 175-177 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 1914
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
Floors3
Year built1914
Total area3,205 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1378010
Ownership

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

Owner name
Wong Revoc Trust
Mailing address
Wong Bill N & Mary Lenjin T 13076 Glen Brae Dr Saratoga CA 95070
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.

177 18th Ave, San Francisco, CA 94121
175 18th Ave, San Francisco, CA 94121
Augrented Insights
Initial analysis

The Wong Revoc Trust owns this three-story, two-unit multi-family residential building located at 175-177 18th Avenue in the Lake-The Presidio neighborhood. Built in 1914, this classic flats and duplex structure has undergone several significant maintenance and improvement projects over the years. The most recent major work involved reroofing in September 2021 at a cost of $7,200, following a historical pattern of roof maintenance that includes a 1998 reroofing project. The building has seen various structural and safety improvements, including a sewer line section replacement in 2015, a 2003 electrical service upgrade from 100A to 200A, and multiple window installations in the 1980s. Notably, there is an active building complaint filed in October 2022 alleging unauthorized structural modifications and window installations beyond the scope of posted permits, with concerns about potential safety issues requiring engineering review.

The property has experienced several infrastructure and maintenance issues, including a sewage backup incident in March 2015, and some sidewalk-related concerns with a lifted sidewalk reported to DPW in September 2019. While there have been some parking enforcement matters reported between 2018-2019, these were primarily related to temporary parking violations rather than building safety or maintenance issues. The building's maintenance history shows consistent attention to necessary repairs, including historical attention to dry rot and stair repairs in the 1980s, though some of these earlier permits from the 1980s are now quite dated. Regular maintenance appears to be prioritized, with both the recent reroofing and the 2015 sewer line work indicating ongoing upkeep of essential building systems.

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

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Risk rating

How 175-177 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
55th percentile

Out of 660 buildings in this neighborhood, 297 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
85%
No DBI
violation
15%
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.

DBI tenant complaints (past 7 years)

Formal complaints tenants filed with DBI about this building over 7 years.

Building age

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

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 73.8%
Moderate concern 22.8%
Severe concern 3.4%
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

175-177 18Th Ave event timeline

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

2026
Building Permit Jun 17
Demolish unpermitted rear deck & stairs and rebuild 3rd floor deck and stairs to rear yard conforming to current code
$20,000 · Filed
Building PermitApr 28
Remodel of e illegal rear deck and rebuild new deck to comply with code.

See all 5 events

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

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Every record we have

Full data for 175-177 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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