Free SF apartment background check

211 27Th Ave

Sea Cliff, SF 94121 1387001 11 units · 3 fl · 1974

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 Sea Cliff
At or below average
avg 0.8
0
FewerMore

This building has 0 novs (7y), at or below the Sea Cliff average of 0.8.

Rent & eviction protection

Is 211 27Th Ave 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 1974
2 or more units
11 units
Property type
Multi-Family Residential
Zoning
RM1
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
Units11
Floors3
Year built1974
Total area7,806 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1387001
Ownership

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

Owner name
John P Brennan Co Llc
Mailing address
Brennan John P Manager 50 Everson St San Francisco CA 94131
Last sale
000000

Landlord portfolio

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

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Augrented Insights
Initial analysis

Located in the Sea Cliff neighborhood, 211 27th Avenue is a 3-story, 11-unit multi-family residential building constructed in 1974, currently owned by John P Brennan Co LLC. The property has undergone several significant improvements over the years, most notably completing a mandatory soft-story retrofit in 2017 (Tier 3) to improve seismic safety. Recent renovations in 2024 include substantial updates to unit 301, featuring new cabinets, countertops, flooring, and electrical work, along with plumbing updates including dishwasher installation and water heater vent replacement. The building's maintenance history shows regular upkeep, including a complete reroofing project in 2022 costing $29,000, and historical exterior improvements such as siding replacement in 2010 and 1991-92.

The building has experienced several maintenance and safety issues over its history, though most have been promptly addressed. These include fire escape ladder maintenance requirements in 2002 and 2006 (both resolved), a laundry facility outage in 2004, and several construction-related complaints in 2010 regarding dust and debris. More recent concerns include two open complaints from 2024 regarding excessive noise and a transportation-related issue. Fire safety inspections revealed some historical concerns in 2016 and 2021 regarding sprinkler systems and blocked exits, though these were either resolved or found to have no merit. The building's infrastructure improvements, including the electrical panel relocations and additional kitchen outlets completed in October 2024, suggest ongoing commitment to modernization and safety compliance, while the property's Tier 3 soft-story retrofit status indicates adherence to seismic safety requirements.

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

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Risk rating

How 211 27Th Ave'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
15th percentile

Out of 20 buildings in this neighborhood, 17 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
57%
No DBI
violation
43%
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.

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 57.2%
Moderate concern 22.7%
Severe concern 20.1%
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

211 27Th Ave event timeline

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

2025
Electrical Permit Sep 29
To relocate and upgrade the electrical panel in unit-#101
Complete
Electrical PermitSep 29
To relocate and upgrade the electrical panel in unit #204

See all 11 events

Full history back to 2021 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 211 27Th Ave 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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