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154-156 27Th St

Noe Valley, SF 94110 6577018 3 units · 3 fl · 1916

This building has significantly more problems than most nearby buildings. 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 154-156 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 1916
2 or more units
3 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
Units3
Floors3
Year built1916
Total area3,851 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot6577018
Ownership

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

Owner name
Lynn Derderian/Robert Piech
Mailing address
Piechuta Robert J&derderian 1752 Leimert Blvd Oakland CA 94602
Last sale
032499

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.

154 27th St, San Francisco, CA 94110
156 27th St, San Francisco, CA 94110
Augrented Insights
Initial analysis

The property at 154-156 27th Street in Noe Valley is a 5-unit, multi-family residential building constructed in 1916, currently owned by Lynn Derderian and Robert Piech. The building has experienced several significant structural maintenance issues over the years, particularly concerning stairways. Most recently, in 2007, there were multiple repairs and improvements including back stair repairs, a kitchen remodel with energy-efficient lighting, and the installation of a new forced air gas furnace system. Historical records show ongoing attention to stair maintenance, with front stairway replacement completed in 2005 costing $12,000, and previous repairs dating back to the 1980s when dry rot damage was addressed.

The building experienced a gutter-related water runoff issue in May 2007 that required intervention and was subsequently resolved within one month. More recently, there has been notable activity regarding vehicle parking issues, with multiple citations issued between 2023-2024 for driveway blocking and sidewalk parking violations. A significant event occurred in September 2022 when a tenant buyout took place at 156 27th Street, with one tenant receiving $42,500. The property has also faced some environmental challenges, with reports of tree-related issues in July 2023, including property damage concerns. The building's electrical system received upgrades during the 2007 renovations, including the installation of a dedicated sub-panel for kitchen fluorescent lights and associated electrical infrastructure. While there have been various improvements and repairs documented throughout the building's history, the most pressing recent issues appear to be related to parking enforcement rather than structural or safety concerns.

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

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Risk rating

How 154-156 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
14th percentile

Out of 1879 buildings in this neighborhood, 1616 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
53%
No DBI
violation
47%
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 size

Total floor area — a proxy for building scale and the number of systems (plumbing, electrical, HVAC) that can fail.

Building age

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

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 53.9%
Moderate concern 28.2%
Severe concern 17.9%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

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The story over time

154-156 27Th St event timeline

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

2026
311 Request Jun 10
Blocking driveway cite only
Parking Enforcement
311 RequestMay 27
Other illegal parking

See all 4 events

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

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Every record we have

Full data for 154-156 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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