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109 Felton St

Portola, SF 94134 5980019 2 units · 2 fl · 1910

This building has a higher-than-average number of open problems nearby. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.

NOVs (7y) vs. neighborhood
Compared to a typical building in Portola
At or below average
avg 1.8
0
FewerMore

This building has 0 novs (7y), at or below the Portola average of 1.8.

Rent & eviction protection

Is 109 Felton 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 1910
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.

Building characteristics
Units2
Floors2
Year built1910
Total area2,400 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot5980019
Ownership

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

Owner name
Ngai Mei Ting
Mailing address
109 Felton St San Francisco CA 94134
Last sale
051402

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 109 Felton Street in the Portola neighborhood, owned by Ngai Mei Ting, is a two-story flats and duplex structure constructed in 1910. The property's recent history from 2018 through 2024 reveals a pattern of maintenance and compliance issues primarily related to street and sidewalk conditions. In 2018, there were concerns about a damaged tree, and a subsequent encampment report in early 2019 found no issues upon inspection. Street cleaning activities were recorded in late 2019 and again in late 2023, addressing loose garbage in the area. The building experienced several parking-related incidents between 2021 and 2024, including multiple cases of driveway blocking, though parking enforcement was often unable to locate the offending vehicles. Three distinct reports of garbage and debris issues were documented in 2024, including one case of graffiti on the sidewalk, though most of these cases were resolved through official response. The property has two recorded permits from 2008 (one for street space and another for sidewalk use), though these appear to be standard maintenance permits with minimal associated costs.

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

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Risk rating

How 109 Felton 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
69th percentile

Out of 255 buildings in this neighborhood, 79 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
82%
No DBI
violation
18%
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 location

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

Building age

Older buildings tend to have more maintenance challenges; SF's pre-1906 earthquake housing stock carries distinct risk.

12-Month severity forecast
No violation 73.9%
Moderate concern 20.7%
Severe concern 5.4%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

109 Felton St apartment reviews

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The story over time

109 Felton St event timeline

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

2026
311 Request Feb 26
Damaged tree
fallen tree

See all 1 events

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

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Every record we have

Full data for 109 Felton 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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