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17-21 Capp St

Inner Mission, SF 94103 3553047A 3 units · 2 fl · 1906

Nothing on record for this building in the last seven years. Our model still sees a moderate chance of maintenance problems in the next 12 months, from the owner's wider portfolio and the surrounding area rather than from anything recorded here. 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 Inner Mission — not a forecast
At or below average
avg 2.7
0
FewerMore

This building has 0 novs (7y), at or below the Inner Mission average of 2.7.

Rent & eviction protection

Is 17-21 Capp 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 1906
2 or more units
3 units
Property type
Multi-Family Residential
Zoning
RH3
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 1906
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
Units3
Floors2
Year built1906
Total area2,946 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot3553047A
Ownership

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

Mailing address
17 Capp St San Francisco CA 94103
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.

19 Capp St, San Francisco, CA 94103
21 Capp St, San Francisco, CA 94103
17 Capp St, San Francisco, CA 94103
Augrented Insights
Initial analysis

The property at 17-21 Capp Street in the Inner Mission is a two-story, multi-family residential building constructed in 1906, containing three units under TIC Building Class (4 units or less). The building experienced significant fire damage in 2006 and 2008, which led to a series of repairs and modifications between 2010-2011, including the addition of a new unit and various structural improvements. These renovations involved extensive work, including electrical rewiring, plumbing updates, and the installation of a new gas heating system. The property now features a solar panel system installed in 2021, consisting of 18 PV modules.

Recent history shows the building has maintained proper permits and undergone several improvements, including exterior updates and infrastructure upgrades. The property has experienced multiple 311 calls related to street conditions and maintenance, though these appear to be primarily related to public space issues rather than building-specific problems. Historical building violations related to fire safety and unit modifications were ultimately resolved by December 2011, and there have been no active violations since that time. While there were several complaints regarding hazardous materials and vacant building status in 2005-2006, these were found to have no merit. The most recent building-related service request was for garbage and debris in October 2024, which was resolved by Public Works.

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

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Risk rating

How 17-21 Capp 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
63rdpercentile

Out of 2380 buildings in this neighborhood, 881 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
71%
No DBI
violation
29%
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.

Neighborhood (ZIP code)

The ZIP code captures local housing market and enforcement patterns that affect all buildings in the area.

Neighborhood location

Precise location is a proxy for neighborhood-level risk — some SF blocks have systematically higher DBI activity.

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
Moderate failure risk 29%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

17-21 Capp St apartment reviews

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On the map

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Buildings nearby
8 found
The story over time

17-21 Capp St event timeline

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

2026
311 Request Mar 30
Garbage and debris
human waste or urine

See all 4 events

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

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Every record we have

Full data for 17-21 Capp St apartments

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

Side by side

How 17-21 Capp St compares to the neighborhood

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