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435-437 Hayes St

Hayes Valley, SF 94102 0817024 22 units · 3 fl · 1907

A handful of records on file over the last seven years, and our model predicts a high risk of further maintenance problems in the next 12 months. A few records worth reading before you sign. Check whether they were closed out, and ask what was actually fixed.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Hayes Valley — not a forecast
At or below average
avg 2.2
0
FewerMore

This building has 0 novs (7y), at or below the Hayes Valley average of 2.2.

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 435-437 Hayes 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
22 units
Property type
Multi-Family Residential
Zoning
HAYES
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 1907
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
Units22
Floors3
Year built1907
Total area11,880 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0817024
Ownership

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

Mailing address
1050 Ralston Ave Belmont CA 94002
Last sale
June 05, 2017

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.

435 Hayes St, San Francisco, CA 94102
437 Hayes St, San Francisco, CA 94102
Augrented Insights
Initial analysis

The 435-437 Hayes Street property is a 22-unit, three-story multi-family residential building constructed in 1907, currently owned by Woodmont Ventures-hayes Street LP. The building has undergone several significant safety upgrades in recent years, most notably a comprehensive fire alarm system replacement in July 2023 costing $60,379 to comply with San Francisco fire code requirements, including the installation of new smoke detectors, sounders, and monitoring modules. The building completed mandatory seismic retrofitting as a Tier 4 soft-story structure in 2019, demonstrating compliance with San Francisco's seismic safety requirements. Recent permits show ongoing maintenance and accessibility improvements, including an ADA compliance project filed in November 2023.

The property has a history of addressing necessary repairs and improvements, including electrical system upgrades in 2023-2024, plumbing work in 2012 and 2022, and various commercial tenant improvements in 2021-2022. Historical building violations from 2008, which included issues with fire safety, security requirements, and plumbing concerns, were promptly addressed and abated by December 2008. The building has experienced regular routine safety inspections over the years, with the most recent complaints in 2022 regarding vacant commercial space being marked as not active. While there have been some recent 311 calls concerning sidewalk conditions and graffiti in 2024, these are primarily related to street maintenance rather than building-specific issues. The property has maintained an active response to fire alarms, with responses to false alarms and detector activations recorded, though no injuries have been reported in recent incidents.

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

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Risk rating

How 435-437 Hayes 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
9thpercentile

Out of 1027 buildings in this neighborhood, 935 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
26%
No DBI
violation
74%
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.

Building size

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

DBI tenant complaints (past 7 years)

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

12-Month risk forecast
High failure risk 74%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

435-437 Hayes St apartment reviews

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On the map

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The story over time

435-437 Hayes St event timeline

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

2026
DBI Complaint May 27
The common areas have no electricity and the fire system has been down for 5 days and the call box is out.
Housing Inspection Services
Building PermitFeb 04
Install 2 canvas awnings over store front's windows

See all 18 events

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

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Every record we have

Full data for 435-437 Hayes St apartments

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

Side by side

How 435-437 Hayes St compares to the neighborhood

This building against comparable properties in Hayes Valley. 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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