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4139-4141 24Th St

Noe Valley, SF 94114 6506039 2 units · 2 fl · 1908

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 Noe Valley
At or below average
avg 1.2
0
FewerMore

This building has 0 novs (7y), at or below the Noe Valley average of 1.2.

Rent & eviction protection

Is 4139-4141 24Th 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 1908
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
24NOE
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 built1908
Total area2,689 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot6506039
Ownership

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

Owner name
Kwei Mei-Ling & Hildreth Ro
Mailing address
4141 24th St San Francisco CA 94114
Last sale
110315

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.

4141 24th St, San Francisco, CA 94114
4139 24th St, San Francisco, CA 94114
Augrented Insights
Initial analysis

The two-unit residential building at 4139-4141 24th Street in Noe Valley is a two-story flats and duplex structure built in 1908, currently owned by Kwei Mei-ling & Hildreth Ro. The property has undergone several significant improvements over the past 15 years, with the most substantial work occurring between 2008-2013. Major renovations included a $120,000 comprehensive remodel in 2008 of both levels featuring updates to the kitchen, dining room, bathroom, and sun porch, along with window replacements and stair reconstruction. In 2013, the building saw additional enhancements including a 104 sq ft sunroom addition, exterior stair replacement, and the installation of a roof deck, with related electrical and plumbing work totaling over $55,000. More recent maintenance includes a $20,940 reroofing project completed in 2017.

The property has experienced some minor regulatory and operational issues, including one building complaint from 2013 regarding unauthorized modifications to an awning. In 2024, there have been numerous 311 calls (totaling 12) related to garbage and debris on the property and in the surrounding area, suggesting potential challenges with waste management. Additionally, there have been three documented instances of vehicles blocking driveways during 2024, all of which resulted in citations being issued. While these issues warrant attention, they represent operational matters rather than structural or safety concerns with the building itself. The property's maintenance history shows regular upkeep and significant improvements undertaken by the current ownership, with no major safety violations or structural issues documented in the available records.

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

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Risk rating

How 4139-4141 24Th 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
53th percentile

Out of 1879 buildings in this neighborhood, 883 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
79%
No DBI
violation
21%
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.

Building permits, owner's portfolio

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

Estimated permit spend (past 7 years)

Dollar value of permits pulled at this address — large recent spend can signal deferred-maintenance catch-up.

12-Month severity forecast
No violation 70.3%
Moderate concern 16.2%
Severe concern 13.5%
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

4139-4141 24Th St event timeline

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

2026
Planning Record Mar 06
CASE CLOSED - NO VIOLATION: A site visit on 3/27/2026 confirmed that there is no connection between the units, and that the kitchen in the upstairs unit (#4141) is as approved per BPA No. 200805192387. COMPLAINT SUBMITTED: A legal multifamily apartment building (at least two units) was illegally converted (without permits) to a single-family dwelling in violation of state and local laws leading to loss of housing units. The floor plan was modified to remove a separation between the units. This building is now being advertised and sold as an SFD house.
Closed - No Violation

See all 2 events

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

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Every record we have

Full data for 4139-4141 24Th St apartments

13 SF public datasets for this parcel — permits, violations, complaints, fire records, 311 calls, planning records, and buyouts.

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