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1621 Waller St

Cole Valley/Parnassus Heights, SF 94117 1251026 2 units · 2 fl · 1920

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 Cole Valley/Parnassus Heights — not a forecast
At or below average
avg 0.9
0
FewerMore

This building has 0 novs (7y), at or below the Cole Valley/Parnassus Heights average of 0.9.

Rent & eviction protection

Is 1621 Waller 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 1920
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.

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 1920
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
Units2
Floors2
Year built1920
Total area2,750 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1251026
Ownership

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

Mailing address
1621 Waller St San Francisco CA 94117
Last sale
—

Landlord portfolio

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

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Augrented Insights
Initial analysis

The two-unit residential building at 1621 Waller Street, located in the Parnassus/Ashbury Heights neighborhood, is a two-story flats and duplex structure built in 1920, currently owned by John Rizzo and Christin Mills. The building's maintenance history includes several significant improvements, such as a complete reroofing in 1992, substantial interior renovations in 1991 involving the removal of bearing walls, kitchen remodeling, and new plumbing installation, along with a water heater replacement in 2016. Three notable maintenance permits from 1982, 1991, and 1992 are on record, though the specific nature of the 1982 permit is not detailed in the records.

The property and surrounding area have experienced numerous environmental challenges over the past year, particularly between October 2023 and September 2024, with multiple reports of garbage and debris, including instances of human waste or urine. Other reported incidents include two parking violations involving vehicles on the sidewalk (February and August 2024), a major event venue noise complaint (August 2024), graffiti on a bike rack (March 2024), and one encampment report that officers were unable to locate upon arrival (March 2024). These recent environmental issues, particularly the recurring reports of waste and debris, suggest ongoing challenges in the immediate neighborhood, though it's important to note that most of these incidents occurred on public property rather than within the building itself. The building's documented permits and improvements indicate regular maintenance attention to major systems and infrastructure over the past several decades, with no recorded complaints or violations directly related to the building's structure or systems.

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

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Risk rating

How 1621 Waller 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
74thpercentile

Out of 526 buildings in this neighborhood, 137 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
84%
No DBI
violation
16%
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 age

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

DBI complaint rate, owner's portfolio

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

12-Month risk forecast
Low failure risk 16%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

1621 Waller St apartment reviews

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On the map

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Buildings nearby
8 found
The story over time

1621 Waller St event timeline

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

2026
311 Request Jul 04
Not offensive
building residential
311 RequestJun 04
Garbage and debris

See all 5 events

Full history back to 2026 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1621 Waller St apartments

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

Side by side

How 1621 Waller St compares to the neighborhood

This building against comparable properties in Cole Valley/Parnassus Heights. Toggle filters to narrow the peer group.

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