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601 Tompkins Ave

Bernal Heights, SF 94110 5701018 2 units · 2 fl · 1900

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 601 Tompkins 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 1900
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH1
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 built1900
Total area
Property typeMulti-Family Residential
Tax statusNone
Blocklot5701018
Ownership

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

Owner name
Modolo Richard J
Mailing address
Lance Walker, Property Mgmt 350 Rhode Island St Ste 240 San Francisco CA 94103
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 residential building at 601 Tompkins Ave in Bernal Heights is a two-story flats and duplex structure built in 1900, currently owned by Richard J Modolo. The most recent significant building improvement occurred in 2013, involving the replacement of a door and window in the rear of the building, with costs totaling $3,500. This work was conservatively executed, using appropriate materials that were not visible from the street. The building's history shows several attempted and completed permits in the early 1990s, including an expired vertical addition permit and a foundation repair permit related to dry rot issues, though these were not ultimately completed.

The property has experienced various infrastructure and environmental challenges in recent years, particularly between 2022-2024, including a water main leak and flooding issues in April 2022, a hazardous materials incident involving liquids in January 2024, and multiple instances of illegal parking enforcement matters. The recent building environment has been marked by several municipal service calls, primarily relating to street maintenance and sewer issues, with the most recent incidents occurring in December 2024. A fire complaint regarding weeds and grass was filed in June 2008 but was determined to have no merit. While there have been numerous service calls to the area, most relate to street and sidewalk conditions rather than building-specific issues, and many cases have been successfully resolved or closed by relevant authorities. The building's permit history, while showing some past concerns, indicates that most significant structural issues were addressed by the early 1990s, with subsequent improvements focusing on maintenance and modernization rather than major structural changes.

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

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Risk rating

How 601 Tompkins 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
47th percentile

Out of 1276 buildings in this neighborhood, 676 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
71%
No DBI
violation
29%
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.

DBI complaint rate, owner's portfolio

Per-building complaint rate across the owner's portfolio.

Building age

Older buildings tend to have more maintenance challenges; SF's pre-1906 earthquake housing stock carries distinct risk.

Construction spend, owner's portfolio

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

12-Month severity forecast
No violation 61.9%
Moderate concern 16.2%
Severe concern 21.9%
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

601 Tompkins 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 601 Tompkins 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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