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1424-1428 Polk St

Downtown, SF 94109 0645013 18 units · 5 fl · 1908

This building has a higher-than-average number of open problems nearby. 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 Downtown
Above average
avg 6.9
8
FewerMore

This building has 8 novs (7y), above the Downtown average of 6.9.

Rent & eviction protection

Is 1424-1428 Polk 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 1908
2 or more units
18 units
Property type
Multi-Family Residential
Zoning
POLK
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 1908
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
Units18
Floors5
Year built1908
Total area13,280 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0645013
Ownership

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

Mailing address
Steven C. Thrower 1 Bush St Ste 900 San Francisco CA 94104
Last sale
012219

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.

1428 Polk St, San Francisco, CA 94109
1424 Polk St, San Francisco, CA 94109
1426 Polk St, San Francisco, CA 94109
Augrented Insights
Initial analysis

The 5-story, 18-unit apartment building at 1424-1428 Polk Street, constructed in 1908 and currently owned by 1424-1428 Polk I2 LLC, has undergone numerous significant renovations and faced various maintenance challenges over recent years. Of particular concern are three recent complaints from late 2023 regarding mold issues affecting multiple units, including reports of water damage and tenant displacement, as well as reports of broken appliances and plumbing problems. The building has also experienced recurring sprinkler system issues, with violations noted in 2016, 2020, and 2024, though these were reportedly corrected. Structural improvements were made in 2022, including wall bracing work costing $50,000, and accessibility upgrades were completed in 2022 including the installation of a power door operator.

The property has undergone substantial unit renovations between 2016 and 2023, including bathroom and kitchen remodels in multiple units, plumbing updates, and electrical system improvements including a new 800-amp service installation in 2017. Recent commercial activity includes the establishment of a new restaurant space, with permits issued in 2023 for both construction and plumbing work. Historical issues from 2002 included several interior maintenance violations, including problems with mold, electrical outlets, floor coverings, windows, walls, and smoke detectors, though these were all abated by April 2002. Fire safety equipment has been a recurring focus, with various corrections made to the alarm systems and sprinkler systems over the years, including a 2022 fire alarm upgrade to meet current codes.

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

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Risk rating

How 1424-1428 Polk 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
33th percentile

Out of 448 buildings in this neighborhood, 300 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
10%
No DBI
violation
90%
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.

NOV rate, owner's portfolio

Per-building NOV rate across everything this owner manages — high rates signal pattern neglect.

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.

12-Month severity forecast
No violation 9.1%
Moderate concern 61.4%
Severe concern 29.6%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

1424-1428 Polk St apartment reviews

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The story over time

1424-1428 Polk St event timeline

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

2026
311 Request May 27
Offensive
building other
311 RequestMay 24
Missing side sewer vent cover

See all 31 events

Full history back to 2019 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1424-1428 Polk 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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