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4428-4430 17Th St

Corona Heights, SF 94114 2645011 2 units · 2 fl · 1910

Nothing on record for this building in the last seven years, and our model puts it at a low risk of maintenance problems over the next 12 months. No public enforcement record to go on. Walk the building, ask the current tenants how repairs get handled, and get any promises in writing.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Corona Heights — not a forecast
At or below average
avg 1.3
0
FewerMore

This building has 0 novs (7y), at or below the Corona Heights average of 1.3.

Rent & eviction protection

Is 4428-4430 17Th 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 1910
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 1910
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 built1910
Total area1,956 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot2645011
Ownership

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

Mailing address
Louisette Basa 920 Sanchez St San Francisco CA 94114
Last sale
November 05, 2003

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.

4428 17th St, San Francisco, CA 94114
4430 17th St, San Francisco, CA 94114
Augrented Insights
Initial analysis

The two-story multi-family residential building at 4428-4430 17th Street in Corona Heights, owned by the Louisette Jacinto Basa Trust, has undergone several significant maintenance and improvement projects since its construction in 1910. Historical records show exterior upgrades in 1988-1989, including the installation of aluminum windows and replacement of cedar shingles with redwood siding. In 2005, the building underwent deck and stair replacement work costing $15,000. More recent improvements include plumbing updates in 2018, featuring the installation of a direct vent natural gas fireplace and new gas supply lines, though a sewer replacement project from 2015 is listed as expired.

The property has experienced recurring plumbing issues in recent months, with two documented sewage back-up incidents from the side sewer vent in October and December 2024, both of which were resolved through field work. The building currently has an open noise complaint from September 2024, while several parking-related enforcement actions have been taken in recent months, with at least one citation issued for blocking the driveway in November 2024. Other recent issues include graffiti removal in October 2024 and a brief incident involving garbage and debris in September 2024, both of which were resolved.

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

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Risk rating

How 4428-4430 17Th 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
61stpercentile

Out of 348 buildings in this neighborhood, 136 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.

Building age

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

Building permits, owner's portfolio

Permits pulled across all of this owner's buildings over 7 years.

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

4428-4430 17Th St apartment reviews

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On the map

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The story over time

4428-4430 17Th St event timeline

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

2026
311 Request May 10
Pole
pole wires exposed

See all 5 events

Full history back to 2024 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 4428-4430 17Th St apartments

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

Side by side

How 4428-4430 17Th St compares to the neighborhood

This building against comparable properties in Corona Heights. 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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