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445-447 Hayes St

Hayes Valley, SF 94102 0817023 2 units · 2 fl · 1906

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 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.

Rent & eviction protection

Is 445-447 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 1906
2 or more units
2 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 1906
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 built1906
Total area2,800 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0817023
Ownership

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

Mailing address
Richard Howarth & Victoria 740 Church St San Francisco CA 94114
Last sale
November 22, 2010

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.

447 Hayes St, San Francisco, CA 94102
344 Linden St, San Francisco, CA 94102
445 Hayes St, San Francisco, CA 94102
Augrented Insights
Initial analysis

The property at 445-447 Hayes Street is a two-story mixed-use building constructed in 1906, containing both residential and retail spaces, currently managed by the Howarth Slaker Family Trust. The building has undergone numerous significant improvements over the past several years, with the most substantial work occurring in 2018 when retail tenant improvements valued at $111,000 were completed, including new lighting, storage modifications, and electrical compliance work. A major safety upgrade was executed in 2017-2018 with the installation of a comprehensive fire sprinkler system throughout the building, though some associated permits were later canceled. The building has seen consistent maintenance and upgrades, including electrical system improvements (400-amp service upgrades), plumbing renovations (kitchen, bathroom, and laundry room remodels), and the attempted addition of a roof deck in 2017 (permit was ultimately canceled).

Recent records from late 2024 show multiple 311 calls related to garbage and debris issues near the property, with some incidents involving human waste, though most cases were resolved with no work needed. There are also current open cases for graffiti and a public health complaint from December 2024. The building experienced several fire safety inspections between 2008 and 2010, mostly related to combustible materials, but all issues were promptly corrected. Fire incident records show only false alarms and unintentional system activations, with no actual fires or injuries reported. The property has seen various planning applications over the years, including attempted changes for outdoor dining and a roof deck addition, though some were withdrawn or canceled.

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

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Risk rating

How 445-447 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
76thpercentile

Out of 1027 buildings in this neighborhood, 246 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
82%
No DBI
violation
18%
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 (ZIP code)

The ZIP code captures local housing market and enforcement patterns that affect all buildings in the area.

Property class: apartment building

Apartment building — this property classification influences expected violation rates.

Neighborhood location

Precise location is a proxy for neighborhood-level risk — some SF blocks have systematically higher DBI activity.

12-Month risk forecast
Low failure risk 18%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

445-447 Hayes St apartment reviews

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On the map

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The story over time

445-447 Hayes St event timeline

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

2026
311 Request Mar 28
Public works
bsm complaint

See all 5 events

Full history back to 2023 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 445-447 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 445-447 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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