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4521 17Th St

Corona Heights, SF 94114 2655042 36 units · 2 fl · 1958

This building has far more open problems than almost any other in the neighborhood. Renters here report frequent, slow-to-fix problems. Get repair promises in writing and check the unit before signing.

NOVs (7y) vs. neighborhood
Compared to a typical building in Corona Heights
At or below average
avg 1.2
0
FewerMore

This building has 0 novs (7y), at or below the Corona Heights average of 1.2.

Rent & eviction protection

Is 4521 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 1958
2 or more units
36 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.

Building characteristics
Units36
Floors2
Year built1958
Total area24,210 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot2655042
Ownership

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

Owner name
Kitt Family Ltd Partnership
Mailing address
Ted & Dorothy Kitt 2801 Broadway St San Francisco CA 94115
Last sale
042795

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.

4521 17th St, San Francisco, CA 94114
1222 Clayton St, San Francisco, CA 94114
Augrented Insights
Initial analysis

The 36-unit multi-family residential building at 4521 17th Street in Corona Heights, owned by Kitt Family Ltd Partnership, has undergone several significant safety and infrastructure improvements since its construction in 1958. Most notably, the building completed a mandatory soft-story retrofit in 2018 (with a cost of $400,000) to enhance seismic safety. Recent major works include the installation of a new fire alarm system (2024) costing $120,000 to bring the building into compliance with current fire code requirements, as well as a reroofing project (2024) costing $65,000 and the replacement of the building's boiler (2023). The property has maintained an active maintenance schedule, with recent attention to deck repairs, including work completed in 2021 on units 24 and 26, and historical issues with dry rot being addressed through various permits between 2016-2021.

The building has experienced some historical maintenance challenges, including multiple violations in 2000 related to mold/mildew, water damage, and security concerns, though these were all abated by September 2000. More recent complaints from 2022 regarding bathroom fixtures indicate occasional maintenance delays. The property has received regular routine inspections, with some notable incidents including a 2016 rockslide that required slope stabilization work and a 2006 complaint about unsafe building conditions that was resolved by 2012. Fire safety systems have required ongoing attention, with several violations and complaints recorded between 2016-2024 regarding alarms and extinguishers, though most have been promptly corrected. The building's infrastructure improvements, including the recent fire system upgrade and soft-story retrofit completion, suggest a commitment to maintaining safety standards, though the open violation from November 2023 regarding sleeping area requirements remains outstanding.

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

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Risk rating

How 4521 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

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
1th percentile

Out of 348 buildings in this neighborhood, 345 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
21%
No DBI
violation
79%
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.

Building size

Total floor area — a proxy for building scale and the number of systems (plumbing, electrical, HVAC) that can fail.

Neighborhood location

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

12-Month severity forecast
No violation 22.0%
Moderate concern 68.4%
Severe concern 9.6%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

4521 17Th St apartment reviews

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The story over time

4521 17Th St event timeline

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

2026
Building Permit Jan 15
Re-roofing. no hot work.
$29,500 · Complete

See all 17 events

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

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Every record we have

Full data for 4521 17Th St 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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