Free SF apartment background check

109-115 11Th Ave

Lake Street, SF 94118 1371001A 4 units · 2 fl · 1912

This building has significantly more problems than most nearby buildings. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.

NOVs (7y) vs. neighborhood
Compared to a typical building in Lake Street
At or below average
avg 0.6
0
FewerMore

This building has 0 novs (7y), at or below the Lake Street average of 0.6.

Rent & eviction protection

Is 109-115 11Th Ave 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 1912
2 or more units
4 units
Property type
Multi-Family Residential
Zoning
RH2
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
Units4
Floors2
Year built1912
Total area2,560 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1371001A
Ownership

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

Owner name
Wong Sandra Mae
Mailing address
830 Autumn Ln Mill Valley CA 94941
Last sale
000000

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.

109 11th Ave, San Francisco, CA 94118
111 11th Ave, San Francisco, CA 94118
113 11th Ave, San Francisco, CA 94118
115 11th Ave, San Francisco, CA 94118
Augrented Insights
Initial analysis

The property at 109-115 11th Avenue is a 2-story, 4-unit multi-family residential building constructed in 1912, currently owned by Sandra Mae Wong. The building has undergone several significant structural and safety improvements over the years, including electrical system upgrades in 2003 with the installation of a new 200-amp main service and back stair lighting, back stairs repairs in 2013 costing $2,800, and a reroofing project in 2007 costing $6,950. A notable cluster of building violations was recorded in November 2006, including issues with egress, combustible storage, window repairs, and stair conditions, though these were all abated by August 2007. The building has experienced recurring issues with its back stairs, requiring multiple repairs in 2006 and 2013, as well as plumbing concerns, including reports of continuous water running and dampness in 2023, and a sewer backup incident in 2006.

More recent complaints and inspections have focused on building systems and maintenance, including a 2019 concern about dryer venting safety and an annual routine inspection in 2016-2017. The property has maintained occupancy stability since its construction, with regular maintenance including electrical upgrades, roofing, and stair repairs. In recent years, there have been some recurring issues with parking enforcement, particularly regarding sidewalk blocking and driveway access, as evidenced by multiple 311 calls between 2021 and 2024. The building's location has experienced some environmental and public health concerns as documented in recent 2024 311 calls, though these are not directly related to building maintenance or habitability.

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

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Risk rating

How 109-115 11Th Ave'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
11th percentile

Out of 660 buildings in this neighborhood, 587 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
55%
No DBI
violation
45%
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.

Number of units

The number of units affects how the model reads complaint and violation totals — more units means more potential sources.

DBI tenant complaints (past 7 years)

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

Permit rate, owner's portfolio

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

12-Month severity forecast
No violation 43.2%
Moderate concern 40.6%
Severe concern 16.3%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

109-115 11Th Ave apartment reviews

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The story over time

109-115 11Th Ave event timeline

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

2024
311 Request Sep 14
Public works
bsm complaint

See all 4 events

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

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Every record we have

Full data for 109-115 11Th Ave 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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