Free SF apartment background check

378 27Th St

Noe Valley, SF 94131 6579022 2 units · 2 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 Noe Valley
At or below average
avg 1.2
0
FewerMore

This building has 0 novs (7y), at or below the Noe Valley average of 1.2.

Rent & eviction protection

Is 378 27Th 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
RH2
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
Floors2
Year built1908
Total area1,747 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot6579022
Ownership

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

Owner name
Wiederholt-Kassar Revoc Tr
Mailing address
Kassar Barak & Wiederholt K 378 27Th St San Francisco CA 94131
Last sale
110314

Landlord portfolio

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

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Augrented Insights
Initial analysis

The property at 378 27th Street in Noe Valley is a two-story, multi-family residential building constructed in 1908, currently owned by the Wiederholt-Kassar Revocable Trust. The building has undergone significant recent improvements, with the most notable being a comprehensive energy upgrade completed in 2024 that included the installation of heat pump water heaters, an electrical subpanel, and the conversion from gas to electric systems for heating and appliances. This upgrade also involved disconnecting the hydronic heating system from the city water supply and installing a 10 kW solar PV system (April 2023). Earlier improvements in 2023 included a sewer replacement, and in 2014, the gas houseline was extended.

The building has a history of foundation and structural work, particularly in 2002 when major renovations were performed including bathroom remodeling and repairs to the center footings and beam, followed by various revisions and permit renewals. Earlier modifications include a horizontal addition (1996) and window replacements (1995). The only documented building complaint was filed in 2010 regarding construction dust affecting neighboring units with small children, though this complaint is no longer active. There have been three noise complaints about amplified sound electronics in 2018 and one report about waste receptacles being left out in 2009, but these issues appear to have been resolved.

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

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Risk rating

How 378 27Th 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
87th percentile

Out of 1879 buildings in this neighborhood, 244 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
89%
No DBI
violation
11%
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.

Building age

Older buildings tend to have more maintenance challenges; SF's pre-1906 earthquake housing stock carries distinct risk.

Building permits, owner's portfolio

Permits pulled across all of this owner's buildings over 7 years.

Estimated permit spend (past 7 years)

Dollar value of permits pulled at this address — large recent spend can signal deferred-maintenance catch-up.

12-Month severity forecast
No violation 85.8%
Moderate concern 9.5%
Severe concern 4.7%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

378 27Th St apartment reviews

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The story over time

378 27Th St event timeline

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

2024
Building Permit Jun 25
Add electrical subpanel at back of the house. replace 2 existing gas water heaters with heat pump water heaters. 1 heat pump water heater for dhw, 1 for existing hydronic heating heat supply. disconnect boiler autofill such that hydronic heating is closed loop not connected to city potable water.
$12,400 · Complete
Plumbing PermitJun 25
Install 2 heat pump, water heaters, and disconnect hydronic heating from city water system. disconnect watts model 009m2pcqt serial 197094. heating will be closed system.

See all 5 events

Full history back to 2023 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 378 27Th 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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