Free SF apartment background check

270-280 5Th St

South of Market, SF 94107 3732271

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
31
FewerMore

This building has 31 novs (7y), above the South of Market average of 3.3.

Rent & eviction protection

Is 270-280 5Th 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 unknown
2 or more units
? units
Property type
Multi-Family Residential
Zoning
MUR
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
Units—
Floors—
Year built—
Total area—
Property typeMulti-Family Residential
Tax statusNone
Blocklot3732271
Ownership

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

Owner name
Bprep Mosso Apartments Llc
Mailing address
Brookfield Property Group 127 Public Sq Ste 3200 Cleveland OH 44114
Last sale
043020

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.

276 05th St, San Francisco, CA 94107
280 05th St, San Francisco, CA 94107
270 05th St, San Francisco, CA 94107
900 Folsom St, San Francisco, CA 94107
Augrented Insights
Initial analysis

The Mosso Apartments, located at 270-280 5th Street in San Francisco's South of Market neighborhood, is a multi-family residential building with 15 or more units, currently owned by Bprep Mosso Apartments LLC. The property has undergone significant maintenance and upgrades over the past several years, including a complete east lobby remodel and technology room upgrades in 2022 ($180,000), boiler replacements in 2023, and multiple fire safety system improvements in 2018 including the installation of additional sprinklers, fire alarms, and Ansul systems. However, the building has experienced persistent heating and hot water system issues, with multiple tenant complaints in 2023-2024 documenting extended periods without heat or hot water, including a December 2023 incident where residents went without hot water and heat due to boiler problems.

Recent inspections from 2024 have highlighted several maintenance concerns, including general dilapidation, damaged ceilings and walls, and kitchen appliance issues in units. The building's fire safety systems have also been a recurring concern, with multiple violations and complaints about sprinkler/standpipe systems and alarm systems between 2022 and 2025. The property has undergone various plumbing and electrical upgrades, including the installation of fire backflow preventers and new electrical panels in 2017-2018, and most recently, the relocation of electrical outlets and lighting work in 2022. Current violations include an active complaint from October 2024 concerning incorrect standpipe inlet sizing, though many previous violations have been marked as abated. The building's recent history shows ongoing challenges with basic utilities and building maintenance, despite substantial investment in infrastructure improvements.

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

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Risk rating

How 270-280 5Th 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 430 buildings in this neighborhood, 417 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.

DBI tenant complaints (past 7 years)

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

DBI complaint rate, owner's portfolio

Per-building complaint rate across the owner's portfolio.

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 4.3%
Moderate concern 83.7%
Severe concern 12.0%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

270-280 5Th St apartment reviews

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The story over time

270-280 5Th St event timeline

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

2026
DBI Complaint Apr 24
For weeks the water is not working at the building and the management is saying it will be fixed by the end of this month but it due to the work they are doing it is not going to be fixed by the end of the month. we have no water in the bathrooms and this happens several time a week. we asked for rent reduction. management company is brookfield properties
Housing Inspection Services
DBI ComplaintApr 24
Date last observed: 23-apr-26; time last observed: 10:48; floor: 900; unit: 901; exact location: main bldg; building type: residence/dwelling plumbing inoperative; no hot water; ; additional information: ongoing plumbing repair project at 900 folsom street (mosso apartments, built 2014, ~463 units, managed by brookfield properties multifamily) has caused approximately 12 days of full or partial water outages to our unit (apt 901) since february 2, 2026, with more scheduled. outages include complete loss of water (hot and cold) as well as hot-water-only outages, some unscheduled. on april 14, 2026, an emergency overnight hot water shutoff was announced at 7:39 pm with no advance notice. additional outages are scheduled for april 28 and may 1, 2026. repeated and prolonged loss of running water appears to violate cal. civil code §1941.1 habitability requirements. requesting inspection.;

See all 22 events

Full history back to 2019 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 270-280 5Th St apartments

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

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