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233-235 Prospect Ave

Bernal Heights, SF 94110 5644021 2 units · 2 fl · 1931

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 Bernal Heights
At or below average
avg 1.2
0
FewerMore

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

Rent & eviction protection

Is 233-235 Prospect 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 1931
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 built1931
Total area2,850 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot5644021
Ownership

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

Owner name
Lem Holdings Llc
Mailing address
1254 41st Ave San Francisco CA 94122
Last sale
071514

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.

233 Prospect Ave, San Francisco, CA 94110
235 Prospect Ave, San Francisco, CA 94110
Augrented Insights
Initial analysis

The property at 233-235 Prospect Avenue in Bernal Heights is a two-unit, two-story multi-family residential building constructed in 1931, currently owned by Lem Holdings LLC. The building's history reveals significant occupancy and safety concerns between 2011-2013, when the property was found to have been illegally converted from its proper R-3 occupancy (with two dwelling units) to an R-2 occupancy with three floors of dwelling units, including unauthorized living space in the garage area with improper egress and various life safety violations. This situation triggered a series of corrective actions, including multiple permit applications and the removal of illegal plumbing and electrical installations. By October 2013, these violations were declared abated, and the building was restored to its proper configuration.

More recent history shows routine maintenance work, including window replacements in 2007 and various plumbing improvements in 2013. The building underwent some structural maintenance in the 1980s, with records showing dry rot repair and foundation work in 1986, and termite treatment in 1992. Recent municipal records from 2023 show an inspection of a declining tree on the property that was determined not to impact adjacent growth. The only notable infrastructure issue in recent years appears to be a sewer backup incident in December 2014, which was resolved by city services. The property has generated multiple reports of abandoned vehicles nearby between 2013-2021, though these are street-related issues rather than building concerns.

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

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Risk rating

How 233-235 Prospect 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
42th percentile

Out of 1276 buildings in this neighborhood, 740 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 (ZIP code)

The ZIP code captures local housing market and enforcement patterns that affect all buildings in the area.

Construction spend, owner's portfolio

Estimated permit value across all of this owner's buildings.

12-Month severity forecast
No violation 57.7%
Moderate concern 23.0%
Severe concern 19.3%
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

233-235 Prospect Ave event timeline

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

2025
311 Request Nov 20
Other illegal parking
Parking Enforcement
311 RequestNov 08
Other illegal parking

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 233-235 Prospect 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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