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241-243 6Th St

South of Market, SF 94103 3732078 140 units · 8 fl · 1995

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 South of Market
Above average
avg 3.3
49
FewerMore

This building has 49 novs (7y), above the South of Market average of 3.3.

Rent & eviction protection

Is 241-243 6Th 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 1995
2 or more units
140 units
Property type
Multi-Family Residential
Zoning
RSD
Not rent-controlled. Buildings constructed after 1978 are generally exempt from SF rent increase limits under the Costa-Hawkins Act.

Based on SF Assessor records. Not legal advice — confirm with the SF Rent Board.

Building characteristics
Units140
Floors8
Year built1995
Total area54,450 sq ft
Property typeMulti-Family Residential
Tax statusWelfare
Blocklot3732078
Ownership

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

Owner name
Knox Partners Lp
Mailing address
230 4th St San Francisco CA 94103
Last sale
061219

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.

243 06th St, San Francisco, CA 94103
241 06th St, San Francisco, CA 94103
Augrented Insights
Initial analysis

241-243 6th Street is an 8-story, 140-unit multi-family residential building constructed in 1995, currently owned by Knox Partners Lp. The property has experienced persistent maintenance and safety issues over recent years, with the most pressing concerns being an active mold problem reported in September 2024 that affected a toilet and various surfaces, and a recent pattern of electrical problems in December 2024 involving rewiring work in multiple kitchen units (501-511). The building has undergone several significant system upgrades in the past year, including fire safety improvements with the relocation and replacement of fire sprinklers, fire alarm system upgrades, and the installation of a new roof-mounted generator. Historical complaints show recurring issues with water systems, electrical infrastructure, and pest control, with violations related to sleeping area requirements and various safety systems.

The building's maintenance history reveals a pattern of reactive rather than preventive maintenance, with multiple tenant complaints regarding mold, plumbing leaks, electrical problems, and general maintenance issues between 2019 and 2024. Fire safety concerns have been notable, with multiple fire alarm system complaints recorded between 2022 and 2024, though most were related to malfunctions rather than actual fires. The property underwent significant improvements in 2016, including accessibility upgrades, kitchen renovations, window replacement, and bathroom ventilation improvements. Recent permit activity indicates ongoing efforts to address building systems, particularly fire safety and electrical infrastructure, though there is still an active tenant complaint regarding mold as of September 2024.

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

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Risk rating

How 241-243 6Th 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
2th percentile

Out of 430 buildings in this neighborhood, 421 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
8%
No DBI
violation
92%
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.

Number of units

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

Notices of Violation (past 7 years)

DBI issued Notices of Violation at this address over the last 7 years — a direct record of code enforcement activity.

12-Month severity forecast
No violation 2.1%
Moderate concern 73.8%
Severe concern 24.1%
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

241-243 6Th St event timeline

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

2026
DBI Complaint Jun 05
Date last observed: 04-jun-26; floor: 8th; exact location: main bldg; building type: residence/dwelling insects/rodents; ; additional information: so many flies and fruit flies on a sticky trap, resident put their own sticky traps ;
Housing Inspection Services
DBI ComplaintMay 22
Date last observed: 20-may-26; exact location: main bldg; building type: residence/dwelling no hot water;

See all 42 events

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

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Every record we have

Full data for 241-243 6Th 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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