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945-949 Hayes St

Alamo Square, SF 94117 0822033 3 units · 3 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 Alamo Square
At or below average
avg 2.3
0
FewerMore

This building has 0 novs (7y), at or below the Alamo Square average of 2.3.

Rent & eviction protection

Is 945-949 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 1900
2 or more units
3 units
Property type
Multi-Family Residential
Zoning
RM1
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
Units3
Floors3
Year built1900
Total area5,250 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0822033
Ownership

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

Owner name
Golden Properties Llc
Mailing address
Sergio Iantorno, Member 2170 Sutter St San Francisco CA 94115
Last sale
051600

Landlord portfolio

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

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Multiple entrances & addresses

Included addresses

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

949 Hayes St, San Francisco, CA 94117
947 Hayes St, San Francisco, CA 94117
945 Hayes St, San Francisco, CA 94117
Augrented Insights
Initial analysis

The three-unit residential building at 945-949 Hayes Street in Alamo Square, owned by Golden Properties LLC, has a complex history spanning several decades. Originally constructed in 1900 as a three-story flats and duplex structure, the building underwent multiple significant events between 1996 and 2000, including severe dry rot repairs on required egress back stairs in 1996, a comprehensive renovation of kitchens and bathrooms with updates to electrical and plumbing systems in 1999, and various permits related to rooftop work and window installations in early 2000. Notably, there were two cancelled permits in June 2000 for demolishing the existing building and constructing a new four-story, four-unit residential structure, though this work appears not to have proceeded.

The building has experienced several maintenance and safety concerns over the years, with the most recent major issues including a roof leak incident in 2017 involving water intrusion from windows and a fireplace, and routine safety inspections in 2018. Historical complaint records show a plumbing crisis in early 2000 with sewage issues impacting both the property and neighboring areas, though these complaints remain active in the records. More recent concerns have focused on exterior maintenance, with sidewalk defects reported in mid-2023, including a collapsed sidewalk and lifted surface. The area around the building has faced recurring challenges with street cleanliness, as evidenced by multiple 311 calls regarding waste and debris between 2022 and 2024, including resolved cases of human waste that signal ongoing maintenance and sanitation concerns in the immediate vicinity. A carbon monoxide incident (without civilian injuries) was recorded but no specific date or details were provided.

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

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Risk rating

How 945-949 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

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
38th percentile

Out of 305 buildings in this neighborhood, 189 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
54%
No DBI
violation
46%
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.

DBI complaints, owner's portfolio

Complaints across all of this owner's buildings over 7 years.

12-Month severity forecast
No violation 37.1%
Moderate concern 50.6%
Severe concern 12.4%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

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The story over time

945-949 Hayes St event timeline

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

2026
DBI Complaint Jun 05
Date last observed: 04-jun-26; time last observed: 1230; exact location: main bldg; building type: other broken sewer; plumbing leak; ; additional information: i manage the neighboring property at 957 hayes. they have a broken sewer line that's been leaking onto my property for weeks. my attempts to get in touch with the owners have gone unanswered ;
Plumbing Inspection Division

See all 2 events

Full history back to 2025 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 945-949 Hayes St 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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