Free SF apartment background check

343 Walnut St

Presidio Heights, SF 94118 1009006 6 units · 3 fl · 1907

This building has more problems than most buildings in this neighborhood. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.

NOVs (7y) vs. neighborhood
Compared to a typical building in Presidio Heights
At or below average
avg 1.2
0
FewerMore

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

Rent & eviction protection

Is 343 Walnut 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 1907
2 or more units
6 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
Units6
Floors3
Year built1907
Total area5,201 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1009006
Ownership

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

Owner name
Jeanne Kwong Tr
Mailing address
Kwong Jeanne Trustee 1525 Jackson St Apt 6 San Francisco CA 94109
Last sale
111920

Landlord portfolio

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

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Augrented Insights
Initial analysis

343 Walnut Street is a three-story, 6-unit multi-family residential building constructed in 1907 in Presidio Heights. The property has undergone significant improvements and updates in recent years, with particular attention to safety systems and modern amenities. Most notably, in 2022-2024, the building received a comprehensive HVAC upgrade with the installation of heat pumps and air handlers throughout, as well as a complete fire alarm system replacement. Major interior improvements were completed in 2022 for apartments #4 and #6, including bathroom and kitchen remodeling, insulation work, and electrical rewiring. The building successfully completed its mandatory seismic retrofit in 2015 (tier 3), and earlier upgrades included window replacements (2019), roofing work (2020), and plumbing system improvements such as the installation of sub-meters and tankless water heaters (2021).

The property's maintenance record reveals regular upkeep and modernization efforts, with recent plumbing and electrical work achieving completion status in 2024, including heat pump installations and related infrastructure. Although there were a few building violations related to fire safety in 2011, all were promptly addressed by September 2011. The building has maintained an active response to various infrastructure needs, such as sidewalk repairs (2020), though some ongoing issues like sidewalk defects have been noted. A series of parking enforcement cases have been documented near the property, suggesting periodic challenges with vehicle access to the building. The most recent work completed includes comprehensive HVAC improvements and electrical system upgrades, with active and promptly addressed responses to all recent building complaints and issues.

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

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Risk rating

How 343 Walnut 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
28th percentile

Out of 181 buildings in this neighborhood, 130 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
59%
No DBI
violation
41%
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.

Number of units

The number of units affects how the model reads complaint and violation totals — more units means more potential sources.

DBI tenant complaints (past 7 years)

Formal complaints tenants filed with DBI about this building over 7 years.

Building size

Total floor area — a proxy for building scale and the number of systems (plumbing, electrical, HVAC) that can fail.

12-Month severity forecast
No violation 44.4%
Moderate concern 42.0%
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

343 Walnut St event timeline

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

2025
Building Permit Nov 06
As built change log ref pa 202212208723 per inspector replace 3 smoke detectors to 3 heat detectors in ground floor and add 1 horn strobe in ground floor near laundry +
$4,550 · Complete

See all 17 events

Full history back to 2020 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 343 Walnut St 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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