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334-336 18Th Ave

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

This building has more problems than most buildings in this neighborhood. 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 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.

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).

Owner name
Yu York Yung & Wai Ying
Mailing address
336 18th 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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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

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
22th percentile

Out of 2250 buildings in this neighborhood, 1755 are predicted to be safer.

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 severity forecast
No violation 68.0%
Moderate concern 26.1%
Severe concern 5.9%
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

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.

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