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3450 Market St

Twin Peaks, SF 94114 2717056 7 units · 5 fl · 1974

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 Twin Peaks
Above average
avg 3.0
44
FewerMore

This building has 44 novs (7y), above the Twin Peaks average of 3.0.

Rent & eviction protection

Is 3450 Market 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 1974
2 or more units
7 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
Units7
Floors5
Year built1974
Total area12,071 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot2717056
Ownership

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

Owner name
Hoo Lan Yuk Chan
Mailing address
722 Judah St San Francisco CA 94121
Last sale
020917

Landlord portfolio

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

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Augrented Insights
Initial analysis

The 5-story, 7-unit multi-family residential building at 3450 Market St in Twin Peaks, owned by Hoo Lan Yuk Chan and built in 1974, has undergone several significant structural and safety improvements over the years. Most notably, the building completed a mandatory soft-story retrofit in 2017-2018 (with concrete grade beam revisions) at a cost of $150,000, achieving Tier 3 compliance and receiving a Certificate of Final Completion. Between 2011 and 2018, various window and door replacements were performed, including window and patio door upgrades in multiple units to meet modern energy efficiency standards. The building's maintenance history shows recurring concerns about fire safety and building systems, with multiple fire code violations documented between 2005 and 2024. Recent tenant complaints filed in 2023-2024 indicate ongoing issues with elevator reliability, garage door functionality, window maintenance, and water intrusion problems. During March 2024, serious fire safety concerns were raised regarding the lack of automatic fire sprinklers in the garages and inadequate maintenance of fire extinguishers in common areas. The building's elevator system, which appears to have been last permitted in 2011, has been reported as unreliable and potentially unsafe. While several historical violations have been abated, including those related to fire escapes and combustible storage, the recurrence of similar issues suggests persistent maintenance challenges. Two active complaints from 2023-2024 regarding window frames and garage door conditions are currently under review by Housing Inspection Services.

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

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Risk rating

How 3450 Market 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
1th percentile

Out of 172 buildings in this neighborhood, 170 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
13%
No DBI
violation
87%
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 6.5%
Moderate concern 15.1%
Severe concern 78.3%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

3450 Market St apartment reviews

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The story over time

3450 Market St event timeline

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

2026
Fire Complaint Feb 10
Alarm Systems
Violation Issued
Fire ComplaintFeb 10
Extinguishers

See all 15 events

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

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Every record we have

Full data for 3450 Market 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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