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1726-1730 Polk St

Nob Hill, SF 94109 0620017 2 units · 2 fl · 1920

A handful of records on file over the last seven years, and our model puts this building at a low risk of further maintenance problems in the next 12 months. A few records worth reading before you sign. Check whether they were closed out, and ask what was actually fixed.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Nob Hill — not a forecast
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 1726-1730 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 1920
2 or more units
2 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 1920
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 built1920
Total area
Property typeMulti-Family Residential
Tax statusNone
Blocklot0620017
Ownership

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

Mailing address
Mark S Oshiro & Wanpen Wira 156 Saint Charles Ave San Francisco CA 94132
Last sale
September 12, 1996

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.

1726 Polk St, San Francisco, CA 94109
1730 Polk St, San Francisco, CA 94109
Augrented Insights
Initial analysis

The property at 1726-1730 Polk Street is a two-story multi-family residential building with retail space, dating from 1920 and located in San Francisco's Nob Hill neighborhood. Owned by the Oshiro & Wirattigowit Trust, this building has undergone several significant maintenance and improvement works over the years. Most recently, in April 2024, a $34,000 re-roofing project was completed, following bathroom remodeling in 1996, electrical upgrades in 2005, and various plumbing improvements including sewer line work in 2013 and sink installation in 2012. The building experienced fire-related issues in 1986 when repairs were done following fire damage in the restaurant, and multiple fire violations were recorded in 2007-2008 related to safety equipment and combustible storage, though these were subsequently closed.

Recent concerns include a plumbing complaint from June 2023 regarding liquid discharge affecting neighboring properties, and two instances of graffiti reported in September 2023 (one being potentially offensive). The property has experienced multiple fire alarm activations over the years, usually determined to be unintentional, with one contained cooking fire incident recorded. Several 311 calls have been made regarding the property's surroundings in 2023-2024, including reports of sidewalk defects and waste issues, though many were resolved without finding any violations. The building's commercial component appears to be active, with ABC and DPH restaurant referrals approved for 1730 Polk Street. While the property has a history of various maintenance and compliance issues, the majority have been addressed and resolved, with no recent violations recorded since 2021.

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

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Risk rating

How 1726-1730 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

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
86thpercentile

Out of 1125 buildings in this neighborhood, 158 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
83%
No DBI
violation
17%
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.

DBI tenant complaints (past 7 years)

Formal complaints tenants filed with DBI about this building over 7 years.

Property class: apartment building

Apartment building — this property classification influences expected violation rates.

Neighborhood location

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

12-Month risk forecast
Low failure risk 17%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

1726-1730 Polk St apartment reviews

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The story over time

1726-1730 Polk St event timeline

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

2026
311 Request Jul 19
311 service request
Encampment
DBI ComplaintJun 12
At 1726 polk st over the front door of the building leading to the tree directly in front of the building. the most armature installation of electrical wiring with christmas tree lights and discover pulp lighting. please come and inspect this situation. (311 sr 101004238137)

See all 9 events

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

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Every record we have

Full data for 1726-1730 Polk St apartments

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

Side by side

How 1726-1730 Polk St compares to the neighborhood

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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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