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110 Langton St

South of Market, SF 94103 3755103 2 units · 2 fl · 1906

This building has more problems than most buildings in this neighborhood. A handful of unresolved issues. Worth a careful walk-through and pointed questions.

NOVs (7y) vs. neighborhood
Compared to a typical building in South of Market
At or below average
avg 3.3
1
FewerMore

This building has 1 novs (7y), at or below the South of Market average of 3.3.

Rent & eviction protection

Is 110 Langton 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 1906
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RED
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
Units2
Floors2
Year built1906
Total area1,536 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot3755103
Ownership

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

Owner name
Jovellana Isabel
Mailing address
Po Box 193155 San Francisco CA 94119
Last sale
091616

Landlord portfolio

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

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Augrented Insights
Initial analysis

The two-unit residential building at 110 Langton Street, owned by Jovellana Isabel, was constructed in 1906 and has experienced several significant maintenance and safety issues over the past few years. The most pressing current concern is an active complaint from May 2024 regarding unauthorized construction work, including window and door replacements, occurring without proper permits and at all hours. This follows a pattern of maintenance challenges, including multiple housing code violations in late 2017 and early 2018 involving water heater issues, electrical problems, damaged walls, mold, and security concerns, all of which were eventually resolved by December 2017.

The building has undergone several documented repairs over the years, including water heater installations in 2017 and 2019, and various structural and maintenance work such as wood repairs and siding replacement. While some fire safety incidents have been recorded, including sprinkler activation and operating without a permit in 2014, these were resolved and did not result in injuries. More recent concerns include multiple encampment reports in 2024 near the property and some maintenance issues noted in 2018 regarding appliances and security hardware, though many of these historical problems have been addressed through proper channels. The property's record shows regular maintenance work being performed, though the recent unauthorized construction activities have raised new concerns about compliance with building regulations.

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

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Risk rating

How 110 Langton 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
24th percentile

Out of 430 buildings in this neighborhood, 327 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
36%
No DBI
violation
64%
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 (ZIP code)

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

DBI tenant complaints (past 7 years)

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

Director's hearing rate, owner's portfolio

Per-building rate of director's hearings across the owner's portfolio.

12-Month severity forecast
No violation 29.8%
Moderate concern 56.4%
Severe concern 13.8%
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

110 Langton St event timeline

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

2026
311 Request May 18
Homelessness and supportive housing
housing homeless request for service
311 RequestApr 23
Garbage and debris

See all 9 events

Full history back to 2024 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 110 Langton 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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