Free SF apartment background check

101 27Th St

Noe Valley, SF 94110 6594001 12 units · 3 fl · 1927

This building has far more open problems than almost any other in the neighborhood. Renters here report frequent, slow-to-fix problems. Get repair promises in writing and check the unit before signing.

NOVs (7y) vs. neighborhood
Compared to a typical building in Noe Valley
Above average
avg 1.2
9
FewerMore

This building has 9 novs (7y), above the Noe Valley average of 1.2.

Rent & eviction protection

Is 101 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 1927
2 or more units
12 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
Units12
Floors3
Year built1927
Total area7,830 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot6594001
Ownership

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

Owner name
Ly Binh Thuc
Mailing address
20 Saint Marys Ave San Francisco CA 94112
Last sale
061404

Landlord portfolio

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

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Augrented Insights
Initial analysis

The 12-unit, 3-story apartment building at 101 27th Street in Noe Valley, owned by Ly Binh Thuc, was constructed in 1927 and has undergone several significant improvements over the years. Most notably, the building completed a mandatory soft-story retrofit in 2017 at a cost of $80,000, achieving Tier 3 compliance. Recent maintenance concerns include an active building inspection complaint from September 2024 regarding roof tiles falling off the property, and a serious water intrusion issue reported in January 2023 involving unsanitary and damaged floors, along with flooding that affected carpeted areas in the first-floor common areas. The building has experienced recurring fire safety issues, with multiple complaints between 2015 and 2024 related to alarm systems, fire extinguishers, and exit maintenance, though these were generally resolved promptly. The property underwent a reroofing project in 1991, and installed a backflow device on the boiler system in 2013, indicating efforts to maintain critical systems.

The building's inspection history shows regular monitoring through routine inspections, with significant violations documented in 2007 related to fire safety and building systems that were abated within months. Multiple recent 311 calls from 2024 have been recorded, primarily concerning parking violations near the property, though these are not directly related to building conditions. The most recent fire-related incident record shows an alarm system violation in May 2024, which has since been abated. While the building has experienced various maintenance and safety compliance issues over the years, it has generally addressed violations and completed required retrofits, including the important seismic safety improvements through the soft-story retrofit program.

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

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Risk rating

How 101 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
3th percentile

Out of 1879 buildings in this neighborhood, 1823 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
29%
No DBI
violation
71%
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.

Number of units

The number of units affects how the model reads complaint and violation totals — more units means more potential sources.

Building size

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

DBI tenant complaints (past 7 years)

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

12-Month severity forecast
No violation 34.3%
Moderate concern 44.2%
Severe concern 21.5%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

101 27Th St apartment reviews

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The story over time

101 27Th St event timeline

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

2026
311 Request Feb 24
Blocking driveway cite only
Parking Enforcement
311 RequestFeb 24
Blocking driveway cite only

See all 18 events

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

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Every record we have

Full data for 101 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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