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2021-2023 Polk St

Nob Hill, SF 94109 0574005 6 units · 3 fl · 1908

This building has a higher-than-average number of open problems nearby. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.

NOVs (7y) vs. neighborhood
Compared to a typical building in Nob Hill
At or below average
avg 2.4
0
FewerMore

This building has 0 novs (7y), at or below the Nob Hill average of 2.4.

Rent & eviction protection

Is 2021-2023 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
6 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.

Building characteristics
Units6
Floors3
Year built1908
Total area4,806 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0574005
Ownership

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

Owner name
Rose Wing Properties
Mailing address
1498 Vallejo St 1&2 San Francisco CA 94109
Last sale
000000

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.

2021 Polk St, San Francisco, CA 94109
2023 Polk St, San Francisco, CA 94109
Augrented Insights
Initial analysis

The three-story, six-unit multi-family residential building at 2021-2023 Polk Street in Nob Hill, owned by Rose Wing Properties, has undergone several significant improvements since its construction in 1908. Most notably, the building completed a mandatory soft story retrofit in 2018 at a cost of $80,000 to comply with 2016 seismic safety requirements, achieving Tier 4 status with Certificate of Final Completion issued. Recent upgrades include electrical work in 2020 replacing the sub-panel and installing new lights and outlets, and multiple sewer-related service requests in 2023 and 2024 regarding missing vent covers. The building's maintenance history shows attention to major systems, with a 2011 reroofing project ($17,500), a $30,000 interior remodel in 2010 including structural repairs, and plumbing updates including a new sewer lateral installation.

The property has experienced some challenges, particularly in 2009 when multiple housing violations were documented, including issues with floor coverings, windows, kitchen cabinets, electrical systems, security hardware, fire safety (fire extinguisher maintenance), and heating system requirements. All these violations were officially abated by June 2012. The building has also had isolated incidents of building complaints, including a 2019 complaint about late-night construction noise from an adjacent property. While there have been minimal fire incidents recorded (two in 2011 - one being an unintentional smoke detector activation and another regarding hazardous materials that was promptly corrected), these are not necessarily indicative of ongoing safety concerns. The surrounding area has seen regular city service interactions, primarily related to street cleaning and waste management, as reflected in multiple 311 calls between 2022 and 2024, though these issues appear to be promptly addressed.

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

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Risk rating

How 2021-2023 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
63th percentile

Out of 1125 buildings in this neighborhood, 416 are predicted to be safer.

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.

Number of units

The number of units affects how the model reads complaint and violation totals — more units means more potential sources.

DBI complaint rate, owner's portfolio

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

Neighborhood (ZIP code)

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

12-Month severity forecast
No violation 39.8%
Moderate concern 15.4%
Severe concern 44.8%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

2021-2023 Polk St apartment reviews

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The story over time

2021-2023 Polk St event timeline

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

2025
311 Request Oct 08
Not offensive
building residential
311 RequestOct 08
Garbage and debris

See all 6 events

Full history back to 2020 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 2021-2023 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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