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219-223 Missouri St

Potrero Hill, SF 94107 4002022 4 units · 1 fl · 1907

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
Above average
avg 1.1
22
FewerMore

This building has 22 novs (7y), above the Potrero Hill average of 1.1.

Rent & eviction protection

Is 219-223 Missouri 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 1907
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
Floors1
Year built1907
Total area1,904 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot4002022
Ownership

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

Owner name
Karen Lum Revoc Tr
Mailing address
Lum Karen Trustee 3201 Balboa St San Francisco CA 94121
Last sale
121801

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.

219 Missouri St, San Francisco, CA 94107
221 Missouri St, San Francisco, CA 94107
223 Missouri St, San Francisco, CA 94107
Augrented Insights
Initial analysis

The 219-223 Missouri Street property is a multi-family residential building located in Potrero Hill, consisting of 4 units in a single-story structure constructed in 1907, currently owned by Karen Lum Revocable Trust. The building has experienced several significant renovations and safety concerns over its history, with the most recent critical violations emerging in October 2024 including inadequate fire safety systems, security issues, and a broken window that were temporarily abated by November 22, 2024. The property has a documented history of maintenance challenges, including multiple housing code violations related to smoke detection, electrical systems, fire safety, and structural elements. A notable renovation attempt was initiated in 2018 with a $950,000 project to expand the building and add parking facilities, though this generated substantial community concern about unauthorized unit conversions in an RH2 zone, leading to a complaint investigation in 2016.

The building's maintenance record shows recurring issues with water damage, bathroom repairs, exterior maintenance, and structural components dating back to the 1990s. Recent 311 calls from 2020-2024 indicate persistent environmental maintenance issues outside the building, including garbage, hazardous materials, and tree damage on the property. While some historical improvements have been made, including kitchen cabinet replacements in unit 221 (2010) and various compliance repairs in 2011, the frequency and nature of violations suggest ongoing maintenance challenges. Planning records reveal ambitious expansion plans that were ultimately withdrawn, including proposals for a three-story vertical addition increasing square footage from 1,680 to 5,274 square feet, though these plans are no longer active.

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

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Risk rating

How 219-223 Missouri 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
36th percentile

Out of 726 buildings in this neighborhood, 465 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
68%
No DBI
violation
32%
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.

Permit rate, owner's portfolio

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

Building permits, owner's portfolio

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

12-Month severity forecast
No violation 51.9%
Moderate concern 27.0%
Severe concern 21.1%
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

219-223 Missouri St event timeline

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

2026
Electrical Permit Apr 08
Add witness test fee ref#e202603129568
Issued
Electrical PermitMar 12
Online electrical permit: category 4a: installation of fire warning and controlled devices of 2,501 - 5,000 ft². upgrade existing fire alarm to comply with sffd 1103.7.6.1 new sound level requirement.

See all 18 events

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

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Every record we have

Full data for 219-223 Missouri 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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