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1831 Hayes St

North Panhandle, SF 94117 1209035 2 units · 1978

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 North Panhandle — not a forecast
At or below average
avg 1.7
0
FewerMore

This building has 0 novs (7y), at or below the North Panhandle average of 1.7.

Rent & eviction protection

Is 1831 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 1978
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH2
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 1978
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
Floors—
Year built1978
Total area2,816 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1209035
Ownership

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

Owner name
Mailing address
1833 Hayes St San Francisco CA 94117
Last sale
November 17, 1994

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 1831 Hayes Street in the Park North neighborhood, owned by Ng Kiu Sing, is a two-story flats and duplex structure built in 1978. The property's maintenance history shows two significant building permits from 2005: one for general street space use and another for reroofing work valued at $4,100.

In recent years, the area around the building has experienced various street maintenance issues documented through 311 calls, with the most recent incidents occurring in 2023 and early 2024 involving reports of garbage, debris, and medical waste (needles) - though inspections revealed nothing present in these instances. The year 2020 was particularly notable for reported street maintenance issues, with multiple cases including graffiti (described as offensive), various instances of loose garbage, human or animal waste, and a defaced parking sign that required attention. Two abandoned property service requests were completed in 2021, and there was one excessive noise complaint recorded in 2019. It's worth noting that the building's original planning records from the late 1970s indicate it was developed as part of a project involving two duplexes over garage structures, with CEQA clearance issued for addresses 1825-1827 Hayes Street. While these historical records provide context, it's important to focus on more recent data when assessing current conditions.

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

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Risk rating

How 1831 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
63rdpercentile

Out of 797 buildings in this neighborhood, 295 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
81%
No DBI
violation
19%
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.

Construction spend, owner's portfolio

Estimated permit value across all of this owner's buildings.

Estimated permit spend (past 7 years)

Dollar value of permits pulled at this address — large recent spend can signal deferred-maintenance catch-up.

12-Month risk forecast
Low failure risk 19%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

1831 Hayes St apartment reviews

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On the map

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8 found
The story over time

1831 Hayes St event timeline

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

2026
Building Permit Jun 10
Rear cantilver deck repair like to like on all levels less than 50% due to dry-rot. add posts to deck for safety urposes. not proposing new property line firewalls
$8,500 · Filed

See all 1 events

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

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Every record we have

Full data for 1831 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 1831 Hayes St compares to the neighborhood

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