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334-336 18Th Ave

Central Richmond, SF 94121 1449031A 2 units · 2 fl · 1916

A handful of records on file over the last seven years, and our model puts this building at a low risk of further maintenance problems in the next 12 months. A few records worth reading before you sign. Check whether they were closed out, and ask what was actually fixed.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Central Richmond — not a forecast
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.

The bar and the rating point different ways because they measure different things: the bar counts DBI violations already on file, the rating forecasts the next 12 months.

Rent & eviction protection

Is 334-336 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 1916
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.

Statewide backstop · AB 1482

California Tenant Protection Act of 2019

Even when a building isn't covered by local rent stabilization, the statewide Tenant Protection Act (AB 1482) may still apply. It caps annual rent increases and requires the landlord to state a legal reason to end most tenancies.

15+ years since occupancy
Built 1916
Annual rent increase cap
5% + CPI, max 10%
Just-cause eviction
After 12 months
Local rent control likely takes priority. This building appears to fall under the local ordinance above, which is stronger than AB 1482. Where a local just-cause ordinance applies, its rules govern instead of the state cap.

AB 1482 does not apply to single-family homes and condos unless owned by a corporation, REIT, or an LLC with a corporate member; to owner-occupied duplexes; or to deed-restricted affordable housing. The Act is in effect until January 1, 2030. Not legal advice — see the California landlord–tenant guide.

Building characteristics
Units2
Floors2
Year built1916
Total area2,580 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1449031A
Ownership

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

Mailing address
336 18th Ave San Francisco CA 94121
Last sale

Landlord portfolio

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

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Multiple entrances & addresses

Included addresses

All street addresses sharing this blocklot that are covered by this report.

334 18th Ave, San Francisco, CA 94121
336 18th Ave, San Francisco, CA 94121
Augrented Insights
Initial analysis

The two-unit residential building at 334-336 18th Avenue in the Central Richmond neighborhood, owned by Yu York Yung & Wai Ying, is a two-story flats and duplex structure built in 1916. The property has undergone several noteworthy improvements over the past few decades, including a complete reroofing project in 2004 costing $3,624, and kitchen cabinet renovations with gypsum board work in 1994. A significant issue arose in November 2021 regarding an unauthorized modification to the property's curb cut, which reportedly exceeded 10 feet and impacted parking space clearance between the two units. This modification allegedly created confusion about parking regulations, though this complaint was marked as not active within one day of filing.

Of particular concern is the recurring issue of driveway blocking at this property, with 12 documented incidents between December 2022 and August 2024. Seven of these cases resulted in citations being issued, while others were marked as "unable to locate" or "could not be validated" by responding parking enforcement officers. The frequency of these parking-related incidents suggests an ongoing challenge with access to the property's driveway, particularly in light of the previously mentioned curb cut modification. The building's permit and complaint history reveals relatively minor maintenance work and no major structural issues, though the parking situation appears to be a significant and persistent challenge for residents.

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

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Risk rating

How 334-336 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

Lower risk — safer than most nearby

DBI rarely finds violations here. Strong maintenance history and a clean complaint record.

Typical — about average for the neighborhood

Some past violations or complaints on record. Worth asking the landlord about any open issues before signing.

Higher risk — riskier than most nearby

Elevated violation and complaint history. DBI has found issues here before and is statistically likely to again.

Neighborhood percentile
22ndpercentile

Out of 2250 buildings in this neighborhood, 1755 are predicted to be safer. The band is relative to this neighborhood, so a share of every neighborhood falls in each colour.

RiskiestSafest
Predicted 12-month outcome
75%
No DBI
violation
25%
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.

Permit rate, owner's portfolio

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

Construction spend, owner's portfolio

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

12-Month risk forecast
Low failure risk 25%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

334-336 18Th Ave apartment reviews

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On the map

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The story over time

334-336 18Th Ave event timeline

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

2025
311 Request Dec 11
Garbage and debris
furniture

See all 3 events

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

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Every record we have

Full data for 334-336 18Th Ave apartments

13 SF public datasets for this parcel — permits, violations, complaints, fire records, 311 calls, planning records, and buyouts.

Side by side

How 334-336 18Th Ave compares to the neighborhood

This building against comparable properties in Central Richmond. Toggle filters to narrow the peer group.

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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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