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4248 23Rd St

Noe Valley, SF 94114 2772026 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 4248 23Rd 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
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 built1908
Total area2,208 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot2772026
Ownership

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

Owner name
Rachel S Bernstein Lvg Tr
Mailing address
Bernstein Rachel S Ttee 9 Jade Pl San Francisco CA 94131
Last sale
000000

Landlord portfolio

Other SF properties this owner holds, with risk grades for each.

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Augrented Insights
Initial analysis

The two-unit multi-family residential building at 4248 23rd Street in Noe Valley, owned by the Rachel S Bernstein Living Trust, has undergone significant renovations and improvements since 2023. Recent major work includes the replacement of 12 street-facing windows and one rear window in August 2024, and substantial interior remodeling of both floors in early 2023 costing $175,000, which involved demolition of interior partitions, electrical and plumbing updates, and new finishes. The property is currently undergoing stair replacement work to conform to regulations, with a permit filed in September 2024 for replacing non-conforming exterior stairs to the upper unit back entrance. Electrical systems have been notably addressed in 2023, with comprehensive rewiring and panel upgrades completed in July 2023, along with grounding and outlet improvements in January 2023.

The building has experienced various maintenance and compliance matters, including a 2023 investigation into potentially unpermitted work on the upper level that required a gas line inspection. Multiple plumbing and electrical permits indicate ongoing system upgrades and maintenance. Recent 311 calls from late 2023 through 2024 have primarily concerned external issues such as tree maintenance, graffiti, and parking concerns, rather than internal building problems. A fire incident in the building was recorded as a system malfunction with no civilian injuries. The property underwent significant exterior improvements in the early 2000s, including siding replacement and window upgrades, and earlier repairs included addressing dry rot in the garage wall in 2015.

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

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Risk rating

How 4248 23Rd 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
96th percentile

Out of 1879 buildings in this neighborhood, 75 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
93%
No DBI
violation
7%
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.

Property class: apartment building

Apartment building — this property classification influences expected violation rates.

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 87.4%
Moderate concern 10.3%
Severe concern 2.3%
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

4248 23Rd St event timeline

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

2026
311 Request Apr 30
Municipal transportation agency
transportation engineering complaint

See all 13 events

Full history back to 2023 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 4248 23Rd St apartments

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

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