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841-843 34Th Ave

Outer Richmond, SF 94121 1677006 2 units · 1 fl · 1926

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 Outer Richmond
At or below average
avg 0.7
0
FewerMore

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

Rent & eviction protection

Is 841-843 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 1926
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
Floors1
Year built1926
Total area2,415 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1677006
Ownership

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

Owner name
Lee Aaron
Mailing address
843 34th Ave San Francisco CA 94121
Last sale
052913

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.

843 34th Ave, San Francisco, CA 94121
841 34th Ave, San Francisco, CA 94121
Augrented Insights
Initial analysis

This multi-family residential building, located at 841-843 34th Avenue in San Francisco's Outer Richmond neighborhood, is a two-unit structure built in 1926 and classified as a Flats & Duplex building. The property underwent significant improvements in 2010-2011, including a substantial horizontal addition at the rear, creating a ground floor unit and infilling the light well area at a cost of approximately $385,277. During this renovation period, complete house remodeling was performed, including updates to the kitchen and three bathrooms, installation of two furnaces, and electrical system upgrades to 200 amps with modern amenities, all of which were successfully completed.

The building's maintenance history shows attention to essential systems, including two separate roofing projects in 1989 and 2000, and improvements to windows in 2009 with the installation of seven energy-efficient double-pane units. Recent building-related concerns primarily focus on exterior maintenance, with the most current issue being a dead tree reported in January 2025 that is still open. Multiple parking-related complaints were recorded between January and September 2024, including instances of blocking driveways and double parking, though most cases were either resolved on-site or logged for enforcement purposes. A historical violation regarding tree requirements (now abated) was recorded in the planning records. The property appears to have undergone proper maintenance and improvements over the years, with no major safety concerns or recent building violations on record.

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

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Risk rating

How 841-843 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
95th percentile

Out of 1040 buildings in this neighborhood, 52 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.

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 86.5%
Moderate concern 9.3%
Severe concern 4.2%
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

841-843 34Th Ave event timeline

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

No dated public records on file yet.
Every record we have

Full data for 841-843 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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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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