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1401-1403 34Th Ave

Central Sunset, SF 94122 1819001 2 units · 2 fl · 1945

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 Central Sunset
At or below average
avg 0.7
0
FewerMore

This building has 0 novs (7y), at or below the Central Sunset average of 0.7.

Rent & eviction protection

Is 1401-1403 34Th 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 1945
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH3
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 built1945
Total area2,250 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1819001
Ownership

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

Owner name
Lahl Lawrence A & Adriana R
Mailing address
Lawrence A & Adriana Lahl T 1935 18Th Ave San Francisco CA 94116
Last sale
032106

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.

1403 34th Ave, San Francisco, CA 94122
1401 34th Ave, San Francisco, CA 94122
Augrented Insights
Initial analysis

The property at 1401-1403 34th Avenue in the Central Sunset neighborhood is a two-unit, two-story multi-family residential building constructed in 1945, currently owned by Lawrence A. and Adriana R. Lahl. The building has undergone several significant renovations over the past two decades, most notably a comprehensive kitchen renovation in 2004-2005 that included cabinet replacements, countertop installations, and electrical work for multiple GFI outlets totaling approximately $29,500. Other improvements include the installation of eight energy-efficient vinyl windows in 2008 ($3,060) and a complete reroofing project in 2006 ($11,000). Historical records from 1996 show an earlier roofing project, though this permit has since expired.

The property and its immediate vicinity have experienced notable maintenance and environmental challenges in recent months, with multiple reports of garbage and debris (including electronics, furniture, and a mattress) recorded between February and December 2024. Of particular concern is an open report from April 2024 regarding a lifted sidewalk condition, though this permit remains active. The area has also seen recurring issues with abandoned items, as evidenced by seven separate Recology reports in 2024 alone. While these external environmental concerns are documented through 311 calls, it's worth noting that most building permits indicate appropriate maintenance and upgrades to the property's structural and internal systems over the years, suggesting that the building itself has received proper attention to major systems such as roofing and windows.

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

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Risk rating

How 1401-1403 34Th 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
56th percentile

Out of 814 buildings in this neighborhood, 358 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
87%
No DBI
violation
13%
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.

Construction spend, owner's portfolio

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

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 82.2%
Moderate concern 12.5%
Severe concern 5.3%
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

1401-1403 34Th Ave event timeline

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

2025
311 Request Nov 07
Posted on directional sign
Illegal Postings
311 RequestAug 09
Blocking driveway cite only

See all 5 events

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

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Every record we have

Full data for 1401-1403 34Th Ave apartments

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

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