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140-142 Sadowa St

Oceanview, SF 94112 7113014 2 units · 1 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 Oceanview
Above average
avg 1.4
6
FewerMore

This building has 6 novs (7y), above the Oceanview average of 1.4.

Rent & eviction protection

Is 140-142 Sadowa 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
2 units
Property type
Multi-Family Residential
Zoning
RH1
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
Units2
Floors1
Year built1908
Total area3,425 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot7113014
Ownership

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

Owner name
Chen Xiao Feng
Mailing address
297 Maynard St San Francisco CA 94112
Last sale
082520

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.

142 Sadowa St, San Francisco, CA 94112
140 Sadowa St, San Francisco, CA 94112
Augrented Insights
Initial analysis

The property at 140-142 Sadowa Street is a one-story, multi-family residential building located in the Oceanview neighborhood, containing two units and built in 1908. The building has experienced several significant permit and violation issues over the past two decades. Most notably, there have been multiple unauthorized dwelling unit constructions and subsequent legalization attempts. In 2016, a significant effort ($100,000) was made to legalize an unauthorized unit with a kitchen, three bedrooms, and two bathrooms on the ground floor, though this permit was ultimately cancelled. A 2017 permit to add an address to the residential unit was issued for $244. More recently, in February 2022, the electrical service panel was upgraded to 200 amps.

The building has faced persistent maintenance and safety concerns, particularly in 2017 when multiple violations were recorded regarding mold/mildew on ceilings and walls, water-damaged ceilings, and walls requiring repair and repainting. These violations were eventually abated in February 2017. The property has also experienced recurring sewer issues, with multiple sewer backup incidents reported through 2024, most recently in September 2024. Recent 311 calls from 2024 show ongoing concerns with illegal parking, including vehicles parking on sidewalks, and reports of overhead obstruction hazards.

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

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Risk rating

How 140-142 Sadowa 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 79 buildings in this neighborhood, 53 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
70%
No DBI
violation
30%
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 location

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

Neighborhood (ZIP code)

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

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 47.2%
Moderate concern 17.4%
Severe concern 35.4%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
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The story over time

140-142 Sadowa St event timeline

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

2022
Electrical Permit Feb 07
Upgrade electrical service panel to 200amp
Issued

See all 1 events

Full history back to 2022 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 140-142 Sadowa 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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