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30 De Long St

Outer Mission, SF 94112 7156065 2 units · 2 fl · 1908

Nothing on record for this building in the last seven years. Our model still sees a moderate chance of maintenance problems in the next 12 months, from the owner's wider portfolio and the surrounding area rather than from anything recorded here. No public enforcement record to go on. Walk the building, ask the current tenants how repairs get handled, and get any promises in writing.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Outer Mission — not a forecast
At or below average
avg 2.6
0
FewerMore

This building has 0 novs (7y), at or below the Outer Mission average of 2.6.

Rent & eviction protection

Is 30 De Long 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 1908
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH1
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 1908
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 built1908
Total area2,162 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot7156065
Ownership

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

Owner name
Mailing address
585 King Rd Petaluma CA 94952
Last sale
—

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 30 De Long Street in San Francisco's Outer Mission neighborhood is a two-story flats and duplex structure built in 1908, currently owned by Scott Mark S. The property has experienced several notable events over the past decades, with the most significant structural issues occurring in 2012 when unauthorized demolition and partial re-framing of rear egress stairs resulted in a building violation that required correction. This situation was resolved through two building permits (totaling $7,001 in repairs) that completed the repair/replacement of three landings and a significant portion of the stairway system. Additional improvements during this period included a gas houseline extension completed in October 2012.

More recent concerns at the property have primarily involved exterior maintenance and safety issues. In 2021, there were recorded fire code violations, while earlier records from 2014 noted problems with weeds and grass that were determined to have no merit. The past few months (from December 2024 to January 2025) have seen multiple reports of garbage and debris issues on or near the property, with at least eight such incidents recorded through 311 calls, most of which have been resolved. Additionally, there have been recent concerns about an overgrown tree (January 2025) and parking enforcement matters, though these are relatively minor compared to the building's historical structural issues. It's worth noting that a tenant buyout occurred in August 2015 at an adjacent property (22 De Long Street), involving four tenants and a buyout amount of $18,000.

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

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Risk rating

How 30 De Long 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
41stpercentile

Out of 112 buildings in this neighborhood, 66 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
66%
No DBI
violation
34%
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.

Neighborhood location

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

Neighborhood (ZIP code)

The ZIP code captures local housing market and enforcement patterns that affect all buildings in the area.

Building permits, owner's portfolio

Permits pulled across all of this owner's buildings over 7 years.

12-Month risk forecast
Moderate failure risk 34%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

30 De Long St apartment reviews

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On the map

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Buildings nearby
8 found
The story over time

30 De Long St event timeline

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

2026
311 Request May 02
Infestation rodent insect
Residential Building
311 RequestApr 22
Infestation rodent insect

See all 3 events

Full history back to 2026 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 30 De Long St apartments

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

Side by side

How 30 De Long St compares to the neighborhood

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