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250 Somerset St

Portola, SF 94134 5977006

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 Portola
Above average
avg 1.8
4
FewerMore

This building has 4 novs (7y), above the Portola average of 1.8.

Rent & eviction protection

Is 250 Somerset 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 1934
2 or more units
? units
Property type
Multi-Family Residential
Zoning
RH1
Possibly exempt. Built before 1979 but single-unit — single-family homes and condos may be exempt from the SF Rent Ordinance.

Based on SF Assessor records. Not legal advice — confirm with the SF Rent Board.

Building characteristics
Units
Floors1
Year built1934
Total area2,040 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot5977006
Ownership

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

Owner name
Silva Silvio O
Mailing address
250 Somerset St San Francisco CA 94134
Last sale
021396

Landlord portfolio

Other SF properties this owner holds, with risk grades for each.

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Augrented Insights
Initial analysis

The building at 250 Somerset Street, located in the Portola neighborhood, is a one-story multi-family residential structure built in 1934, containing two legally recognized units (R-3 classification). The property is currently facing significant legal and safety concerns, with active building violations filed in April 2024 citing numerous infractions related to unauthorized construction work. These violations include unpermitted construction of a 20x20-foot rear structure containing a habitable room, bathroom, and closet, along with issues such as unapproved wiring and plumbing, lack of proper fire construction materials, inadequate light and ventilation, insufficient heating systems, missing smoke detectors, and absence of carbon monoxide alarms - all of which pose serious safety risks to occupants.

Recent activity at the property has generated multiple complaints and service requests throughout early 2025, predominantly related to waste management issues including garbage, debris, and abandoned holiday items on and around the property. There are also current enforcement actions regarding illegal parking, though this is a separate issue from the building's structural and safety concerns. While the building had a reroofing project permitted in 1995, this work is now considered expired. The property's most pressing concerns remain the active building violations from 2024, which have received initial Notices of Violation (NOV) in August 2024 but no subsequent resolution as of the latest available data.

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

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Risk rating

How 250 Somerset 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
44th percentile

Out of 255 buildings in this neighborhood, 143 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
72%
No DBI
violation
28%
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.

DBI tenant complaints (past 7 years)

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

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 58.6%
Moderate concern 31.2%
Severe concern 10.2%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

250 Somerset St apartment reviews

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The story over time

250 Somerset St event timeline

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

2026
Building Permit May 07
Re-roofing: remove and replace roofing material / existing roofing material (in-kind)
$10,500 · Issued

See all 6 events

Full history back to 2024 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 250 Somerset 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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