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2607 Folsom St

Inner Mission, SF 94110 3639012D 2 units · 2 fl · 1900

A handful of records on file over the last seven years, and our model predicts a high risk of further maintenance problems in the next 12 months. A few records worth reading before you sign. Check whether they were closed out, and ask what was actually fixed.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Inner Mission — not a forecast
At or below average
avg 2.7
2
FewerMore

This building has 2 novs (7y), at or below the Inner Mission average of 2.7.

The bar and the rating point different ways because they measure different things: the bar counts DBI violations already on file, the rating forecasts the next 12 months.

Rent & eviction protection

Is 2607 Folsom 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 1900
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH3
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.

Statewide backstop · AB 1482

California Tenant Protection Act of 2019

Even when a building isn't covered by local rent stabilization, the statewide Tenant Protection Act (AB 1482) may still apply. It caps annual rent increases and requires the landlord to state a legal reason to end most tenancies.

15+ years since occupancy
Built 1900
Annual rent increase cap
5% + CPI, max 10%
Just-cause eviction
After 12 months
Local rent control likely takes priority. This building appears to fall under the local ordinance above, which is stronger than AB 1482. Where a local just-cause ordinance applies, its rules govern instead of the state cap.

AB 1482 does not apply to single-family homes and condos unless owned by a corporation, REIT, or an LLC with a corporate member; to owner-occupied duplexes; or to deed-restricted affordable housing. The Act is in effect until January 1, 2030. Not legal advice — see the California landlord–tenant guide.

Building characteristics
Units2
Floors2
Year built1900
Total area1,768 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot3639012D
Ownership

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

Mailing address
Trumbull Robert Ttee 2607 Folsom St San Francisco CA 94110
Last sale
July 23, 2004

Landlord portfolio

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

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Augrented Insights
Initial analysis

The two-unit residential building at 2607 Folsom Street in the Inner Mission, owned by Robert Trumbull Living Trust, is a two-story flats & duplex structure built in 1900. The property has experienced several significant maintenance and compliance issues over the past few years, particularly concerning its rear exit stairs and deck. In 2018, a permitted project (number 201804176567) was initiated to reconstruct the rear exit stairs and deck, which included replacing handrails and guardrails at a cost of $40,000. However, this work led to multiple complaints and violations, including a 2019 complaint about unpermitted reconstruction work, resulting in a Notice of Violation and monitoring fee that was finally abated in July 2022. Additional complaints were filed in 2020 and most recently in January 2025 regarding unauthorized construction work, including a reportedly oversized stairway and deck.

The building's maintenance history includes a concerning incident in 2010 involving a leaking bathtub that resulted in water damage, mold, and pest infestations, though this issue was abated within three months. The property underwent an electrical upgrade in 2004 with the conversion of overhead service to underground. More recently, from September to October 2024, there were multiple complaints about illegal parking in the vicinity, with at least two resulting in citations. Historical records show two fire safety complaints in July 2005 regarding blocked exits, though these were promptly corrected. A CO detector activation was also recorded but was determined to be a false alarm with no civilian injuries reported.

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

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Risk rating

How 2607 Folsom 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

Lower risk — safer than most nearby

DBI rarely finds violations here. Strong maintenance history and a clean complaint record.

Typical — about average for the neighborhood

Some past violations or complaints on record. Worth asking the landlord about any open issues before signing.

Higher risk — riskier than most nearby

Elevated violation and complaint history. DBI has found issues here before and is statistically likely to again.

Neighborhood percentile
17thpercentile

Out of 2380 buildings in this neighborhood, 1975 are predicted to be safer. The band is relative to this neighborhood, so a share of every neighborhood falls in each colour.

RiskiestSafest
Predicted 12-month outcome
41%
No DBI
violation
59%
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 complaint rate, owner's portfolio

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

DBI tenant complaints (past 7 years)

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

Neighborhood location

Precise location is a proxy for neighborhood-level risk — some SF blocks have systematically higher DBI activity.

12-Month risk forecast
High failure risk 59%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

2607 Folsom St apartment reviews

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On the map

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The story over time

2607 Folsom St event timeline

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

2026
Building Violation (NOV) Jan 20 Serious
A complait investigation revealed that modifications had been performed in the garage. sheetrock has been installed with new partitions. recessed lighting, electrical outlets, possible new plumbing. window installed in new partition. code/section: sfbc 103a monthly monitoring fee applies. code/section: sfbc 110a, table 1a-k
DBI ComplaintJan 20
Date last observed: 17-jan-26; identity of person performing the work: robert trumbull; exact location: basement; building type: residence/dwelling work w/o permit; work beyond scope of permit; other building; ; additional information: there is work being done currently in the basement / garage area to finish it and it looks like it is intended to be a new residential unit. in addition, a new structure was built in the backyard last year. together these projects double occupancy of the building, and impacts neighboring residents and businesses. i am concerned that this work is being done without proper permitting and am filing this complaint to ensure that the basement and backyard work will be inspected and is done safely and up to code.;

See all 10 events

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

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Every record we have

Full data for 2607 Folsom St apartments

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

Side by side

How 2607 Folsom St compares to the neighborhood

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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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