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4220 Fulton St

Central Richmond, SF 94121 1661013 2 units · 2 fl · 1924

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.

Rent & eviction protection

Is 4220 Fulton St 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 1924
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RM1
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 1924
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 built1924
Total area3,270 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1661013
Ownership

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

Owner name
Mailing address
4220 Fulton St San Francisco CA 94121
Last sale
—

Landlord portfolio

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

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Augrented Insights
Initial analysis

The two-unit residential building at 4220 Fulton Street in the Central Richmond neighborhood was constructed in 1924 and is currently owned by Lyman J Wong. The two-story flats/duplex structure has undergone several notable modifications and faced some maintenance challenges over the years. In 2012, a significant exterior improvement was completed with the installation of vinyl siding on the back of the house at a cost of approximately $40,000, while in 2018, the building's heating system was updated with new Lennox furnaces installed in the garage. However, a concerning maintenance issue was documented in February 2019 when a complaint was filed regarding sewage discharge from a drain hole in an exterior hallway, with reports of recurring clogging issues; this complaint is currently listed as not active, though it's unclear if it was fully resolved.

The surrounding area has experienced various municipal issues as recorded in 311 calls, with the most recent incidents occurring in 2024, including reports of graffiti and an open encampment situation. The property has been subject to multiple external disturbances, such as graffiti incidents (most recently in May 2024), parking violations, and waste management issues in the vicinity. Between 2019 and 2024, there were several complaints regarding street conditions, including garbage accumulation and blocked parking spaces, though these were typically addressed by city services. While these external issues do not directly indicate problems within the building itself, they do provide context about the neighborhood environment. The building's documented maintenance history shows both investment in infrastructure improvements and some challenges with prompt maintenance response, particularly regarding the documented drainage and sewage issue from 2019.

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

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Risk rating

How 4220 Fulton St'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
44thpercentile

Out of 2250 buildings in this neighborhood, 1260 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
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.

Construction spend, owner's portfolio

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

DBI complaint rate, owner's portfolio

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

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 risk forecast
Low failure risk 15%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

4220 Fulton St apartment reviews

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On the map

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Buildings nearby
8 found
The story over time

4220 Fulton St 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 4220 Fulton St apartments

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

Side by side

How 4220 Fulton St compares to the neighborhood

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