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488-494 4Th Ave

Inner Richmond, SF 94118 1541024 4 units · 4 fl · 1906

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 Inner Richmond
Above average
avg 0.9
5
FewerMore

This building has 5 novs (7y), above the Inner Richmond average of 0.9.

Rent & eviction protection

Is 488-494 4Th 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 1906
2 or more units
4 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
Units4
Floors4
Year built1906
Total area3,750 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1541024
Ownership

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

Owner name
Kwok Edmond
Mailing address
170 Eucalyptus Dr San Francisco CA 94132
Last sale
062315

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.

492 04th Ave, San Francisco, CA 94118
488 04th Ave, San Francisco, CA 94118
494 04th Ave, San Francisco, CA 94118
490 04th Ave, San Francisco, CA 94118
Augrented Insights
Initial analysis

488-494 4th Avenue is a four-unit, four-story multi-family residential building constructed in 1906 and currently owned by Edmond Kwok. The property has experienced several significant maintenance issues over the years, with the most pressing concerns occurring in recent years. An active complaint from February 2019 remains unresolved, detailing problems with mold, non-functioning window locks, water leaks through windows, and multiple building maintenance violations including water damage, damaged walls, and potential lead paint hazards. The building has undergone various repairs and improvements, including the replacement of 12 vinyl double-hung windows in 2019 ($7,000), and significant bathroom renovations in units #492 and #494 in 2010 ($10,200) involving new tile tub enclosures and bathtubs. Historical issues included a serious dry rot problem in 2013 affecting the rear deck and siding, requiring repairs costing $2,000.

The building has a documented history of routine safety inspections, with the most recent being in December 2015. Past violations from 2001 included multiple fire safety concerns such as stair replacement needs, fire extinguisher recharge requirements, and handrail repairs, though these were resolved by November 2001. The property has also experienced various plumbing and infrastructure issues, including a sewage backup incident in 2012 and several sidewalk defects in 2013 and 2021. Recent maintenance actions include a sidewalk repair completed in 2021, though earlier sidewalk issues from 2013 (25 square feet of damaged/uneven sidewalk) were only addressed after a notice to repair. The building's maintenance history shows ongoing challenges with water-related issues, including visible evidence of water damage and moisture problems that have persisted for several years, warranting attention to building envelope performance and moisture management systems.

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

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Risk rating

How 488-494 4Th 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
30th percentile

Out of 1723 buildings in this neighborhood, 1206 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
76%
No DBI
violation
24%
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.

Number of units

The number of units affects how the model reads complaint and violation totals — more units means more potential sources.

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 66.7%
Moderate concern 23.2%
Severe concern 10.1%
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

488-494 4Th 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 488-494 4Th 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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