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1271 23Rd Ave

Central Sunset, SF 94122 1727015 2 units · 2 fl · 1926

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 Central Sunset — not a forecast
At or below average
avg 0.7
0
FewerMore

This building has 0 novs (7y), at or below the Central Sunset average of 0.7.

Rent & eviction protection

Is 1271 23Rd Ave 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 1926
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 1926
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 built1926
Total area2,850 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1727015
Ownership

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

Owner name
Mailing address
1271-1273 23rd Ave San Francisco CA 94122
Last sale
September 19, 2006

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 1271 23rd Avenue in the Central Sunset neighborhood is a two-story flats and duplex structure built in 1926, currently owned by Kuang Shi Hao. The property has undergone several significant improvements in recent years, including a $15,000 reroofing project scheduled for 2024, replacement of eleven front facade windows with period-appropriate wood-framed casements in 2019, and a comprehensive bathroom remodel in 2019 that addressed multiple code compliance issues including plumbing, electrical, and fire safety violations. Notably, the building faced several building violations in 2019 related to windows, electrical systems, and safety equipment, all of which were successfully abated by September 2021. These violations were initially triggered by complaints regarding unpermitted bathroom and window work in Unit #1273, along with issues of mold, water pressure, and inadequate heating systems.

The property has experienced several infrastructure challenges in recent years, including sewage backup issues in August 2023, and ongoing concerns about tree roots lifting the sidewalk, as documented in multiple 311 calls in 2024. Recent maintenance activities include sidewalk repairs and responses to parking violations near the property. Historical records show earlier repairs from 1986 related to back door framing issues and a plumbing system upgrade in 1991 for terra-cotta pipe removal. The building's recent history indicates active management of both routine maintenance and compliance with building codes, though the property has experienced recurring issues with tree root damage to the sidewalk and periodic parking enforcement matters.

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

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Risk rating

How 1271 23Rd Ave'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
47thpercentile

Out of 814 buildings in this neighborhood, 431 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.

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.

Building permits, owner's portfolio

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

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

1271 23Rd Ave apartment reviews

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On the map

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The story over time

1271 23Rd Ave event timeline

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

2024
Building Permit Nov 07
Reroofing- torch work
$15,000 · Issued

See all 1 events

Full history back to 2024 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1271 23Rd Ave apartments

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

Side by side

How 1271 23Rd Ave compares to the neighborhood

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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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