Free SF apartment background check

640 Turk St

Van Ness/ Civic Center, SF 94102 0742003 46 units · 3 fl · 1909

This building has a higher-than-average number of open problems nearby. 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 Van Ness/ Civic Center
Above average
avg 6.7
11
FewerMore

This building has 11 novs (7y), above the Van Ness/ Civic Center average of 6.7.

Rent & eviction protection

Is 640 Turk 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 1909
2 or more units
46 units
Property type
Multi-Family Residential
Zoning
RC4
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
Units46
Floors3
Year built1909
Total area29,925 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0742003
Ownership

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

Owner name
Gogna Fmly Gst Tr
Mailing address
Gogna David, Gogna Paul, Go 838 Sansome St San Francisco CA 94111
Last sale
050996

Landlord portfolio

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

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Augrented Insights
Initial analysis

The 46-unit multi-family residential building at 640 Turk Street, owned by Gogna Fmly Gst Tr, was constructed in 1909 and stands three stories tall. The property has experienced several significant maintenance and safety issues over recent years, with the most concerning being active fire safety violations as of late 2024 regarding alarm systems, standpipes, emergency lighting, and other safety equipment. Recent maintenance history shows recurring problems with water leaks in 2023 that affected both electrical systems and plumbing fixtures, though these issues were marked as resolved by November 2023. The building underwent a substantial fire damage restoration in 2007 costing $30,500, and has had multiple fire code violations between 2021-2024 including blocked exits and various fire safety system problems, though most were corrected upon inspection.

The property has shown persistent issues with basic habitability standards, particularly in 2013-2014 when there were multiple complaints regarding bed bugs, inadequate ventilation, and appliance problems. Historical permits indicate various infrastructure upgrades and repairs, including fire sprinkler systems, a 200-gallon hot water tank installation in 2014, and ventilation improvements. The building's elevator system has been mentioned as a location for emergency responses, suggesting potential reliability concerns, and there have been multiple fire alarm system activations, though these have typically been malfunction-related with no reported injuries. Recent 311 calls from January 2025 primarily relate to external issues like street cleaning and encampments near the property, rather than internal building concerns.

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

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Risk rating

How 640 Turk 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
40th percentile

Out of 85 buildings in this neighborhood, 51 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
15%
No DBI
violation
85%
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.

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 11.9%
Moderate concern 53.3%
Severe concern 34.9%
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

640 Turk St event timeline

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

2026
Fire Complaint May 21
Sleeping Area Requirement
Violation Issued

See all 16 events

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

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Every record we have

Full data for 640 Turk St apartments

13 SF public datasets for this parcel — permits, violations, complaints, fire records, 311 calls, planning records, and buyouts.

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