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2109-2111 22Nd St

Potrero Hill, SF 94107 4158066 2 units · 2 fl · 1946

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 Potrero Hill
At or below average
avg 1.1
1
FewerMore

This building has 1 novs (7y), at or below the Potrero Hill average of 1.1.

Rent & eviction protection

Is 2109-2111 22Nd 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 1946
2 or more units
2 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
Units2
Floors2
Year built1946
Total area752 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot4158066
Ownership

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

Owner name
Siu Maggie Hok Lam
Mailing address
1817 Bonita Rd San Pablo CA 94806
Last sale
120519

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.

2109 22nd St, San Francisco, CA 94107
2111 22nd St, San Francisco, CA 94107
Augrented Insights
Initial analysis

The property at 2109-2111 22nd Street in Potrero Hill is a two-story, two-unit multi-family residential building constructed in 1946 and currently owned by Siu Maggie Hok Lam. The building has undergone several significant permit applications and maintenance work over the years, though with mixed outcomes. In 2017, there was an ambitious proposal (Permit #201708215424) for horizontal and vertical additions including new two-bedroom units and interior remodeling of existing efficiency dwellings, but this permit was ultimately cancelled. A completed plumbing improvement in 2015 involved replacing a failed water main, indicating maintenance attention to infrastructure needs.

More recent developments include multiple 311 calls in 2024 regarding street cleaning issues, primarily involving abandoned furniture, and several reports concerning parking violations including sidewalk parking and driveway blocking, though most of these cases were either not validated or the vehicles were no longer present when enforcement arrived. An interesting planning initiative was explored in 2023 involving a potential project to create four units of affordable housing by adding a three-story building behind the existing structure, though this appears to have been primarily an informational review. The building's history also shows minor maintenance work from 1989 involving window installation, but this permit has since expired. The property has experienced some recent challenges with street cleanliness and parking enforcement issues, though these appear to be more related to the immediate neighborhood rather than the building itself.

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

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Risk rating

How 2109-2111 22Nd 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
37th percentile

Out of 726 buildings in this neighborhood, 457 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
69%
No DBI
violation
31%
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 72.9%
Moderate concern 21.0%
Severe concern 6.1%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
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The story over time

2109-2111 22Nd St event timeline

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

2026
311 Request Jun 16
Abandoned vehicle
Parking Enforcement

See all 4 events

Full history back to 2025 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 2109-2111 22Nd 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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