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3640-3646 Balboa St

Outer Richmond, SF 94121 1580005F 3 units · 3 fl · 1925

Nothing on record for this building in the last seven years, and our model puts it at a low risk of maintenance problems over the next 12 months. No public enforcement record to go on. Walk the building, ask the current tenants how repairs get handled, and get any promises in writing.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Outer Richmond — not a forecast
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.

The bar and the rating point different ways because they measure different things: the bar counts DBI violations already on file, the rating forecasts the next 12 months.

Rent & eviction protection

Is 3640-3646 Balboa 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 1925
2 or more units
3 units
Property type
Multi-Family Residential
Zoning
NC2
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.

Statewide backstop · AB 1482

California Tenant Protection Act of 2019

Even when a building isn't covered by local rent stabilization, the statewide Tenant Protection Act (AB 1482) may still apply. It caps annual rent increases and requires the landlord to state a legal reason to end most tenancies.

15+ years since occupancy
Built 1925
Annual rent increase cap
5% + CPI, max 10%
Just-cause eviction
After 12 months
Local rent control likely takes priority. This building appears to fall under the local ordinance above, which is stronger than AB 1482. Where a local just-cause ordinance applies, its rules govern instead of the state cap.

AB 1482 does not apply to single-family homes and condos unless owned by a corporation, REIT, or an LLC with a corporate member; to owner-occupied duplexes; or to deed-restricted affordable housing. The Act is in effect until January 1, 2030. Not legal advice — see the California landlord–tenant guide.

Building characteristics
Units3
Floors3
Year built1925
Total area4,554 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1580005F
Ownership

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

Owner name
Mailing address
Low Daisy W Trustee 165 Valparaiso St San Francisco CA 94133
Last sale

Landlord portfolio

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

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Multiple entrances & addresses

Included addresses

All street addresses sharing this blocklot that are covered by this report.

3644 Balboa St, San Francisco, CA 94121
3646 Balboa St, San Francisco, CA 94121
3640 Balboa St, San Francisco, CA 94121
Augrented Insights
Initial analysis

The three-story multi-family residential building at 3640-3646 Balboa Street, located in San Francisco's Outer Richmond neighborhood, contains three units and was constructed in 1925 with a ground floor commercial space. The property underwent significant renovations in 2004-2008, including the addition of two new residential units above the existing structure at a cost of $621,374, and the conversion of mezzanine storage on the ground floor into habitable space combining with unit #1. The building's systems received substantial upgrades during this period, with electrical work including the installation of a new 400-amp service, multiple circuits, and comprehensive lighting and outlet installations, as well as plumbing improvements including bathroom and laundry facilities on the second floor.

More recent history shows maintenance activity with the replacement of a gas water heater in October 2022, and there was a fire code violation noted in November 2020, which was promptly addressed on the same day. Of particular note, there has been a recent pattern of municipal service calls regarding waste management, with ten reports of overflowing city garbage cans between January 5-14, 2025, all of which were resolved. These permits, violations, and service calls provide a comprehensive view of the building's history, showing significant investment in modernization and infrastructure upgrades during the 2000s, with relatively minimal maintenance issues in recent years except for the noted waste management concerns.

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

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Risk rating

How 3640-3646 Balboa 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

Lower risk — safer than most nearby

DBI rarely finds violations here. Strong maintenance history and a clean complaint record.

Typical — about average for the neighborhood

Some past violations or complaints on record. Worth asking the landlord about any open issues before signing.

Higher risk — riskier than most nearby

Elevated violation and complaint history. DBI has found issues here before and is statistically likely to again.

Neighborhood percentile
23rdpercentile

Out of 1040 buildings in this neighborhood, 801 are predicted to be safer. The band is relative to this neighborhood, so a share of every neighborhood falls in each colour.

RiskiestSafest
Predicted 12-month outcome
74%
No DBI
violation
26%
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.

Building size

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

Property class: apartment building

Apartment building — this property classification influences expected violation rates.

12-Month risk forecast
Low failure risk 26%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

3640-3646 Balboa St apartment reviews

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The story over time

3640-3646 Balboa St event timeline

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

2026
Plumbing Permit Jun 18
Work category: 1p; remove/replace 30-gal gas water heater in the laundry room. like for like same location.
Issued
311 RequestJun 11
Garbage and debris

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Full history back to 2022 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 3640-3646 Balboa St apartments

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

Side by side

How 3640-3646 Balboa St compares to the neighborhood

This building against comparable properties in Outer Richmond. Toggle filters to narrow the peer group.

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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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