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1403 18Th Ave

Inner Sunset, SF 94122 1835053 3 units · 1 fl · 1958

Nothing on record for this building in the last seven years. Our model still sees a moderate chance of maintenance problems in the next 12 months, from the owner's wider portfolio and the surrounding area rather than from anything recorded here. 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 Inner Sunset — not a forecast
At or below average
avg 1.1
0
FewerMore

This building has 0 novs (7y), at or below the Inner Sunset average of 1.1.

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 1403 18Th 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 1958
2 or more units
3 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 1958
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
Units3
Floors1
Year built1958
Total area1,713 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1835053
Ownership

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

Mailing address
Yamaguchi Hisako Ttee 1403 18Th Ave San Francisco CA 94122
Last sale
September 15, 1988

Landlord portfolio

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

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Augrented Insights
Initial analysis

The property at 1403 18th Avenue in San Francisco's Inner Sunset neighborhood is a three-unit, one-story multi-family residential building constructed in 1958, currently owned by the Hisako Yamaguchi Revocable Trust. The building's maintenance records show consistent attention to structural upkeep, with the most recent significant work being a $5,700 reroofing project completed in 2014. The building has undergone three routine safety inspections in 2000, 2002, and 2011, during which multiple fire safety violations were identified and subsequently resolved. These violations included issues with fire extinguishers, fire escape ladder maintenance, smoke detector installation, and egress obstructions, all of which were abated within a very short timeframe (typically within days to weeks of citation).

Recent maintenance concerns have included a damaged side sewer vent cover reported in January 2023, though this was resolved through official channels. The building's recent history shows no active building violations or complaints, and all identified issues have been addressed through proper channels. The property has experienced typical urban neighborhood challenges as evidenced by 311 calls, including parking violations, street cleaning needs, and sidewalk maintenance requests, though these are generally external to the building's structural integrity and safety systems.

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

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Risk rating

How 1403 18Th 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
23rdpercentile

Out of 1493 buildings in this neighborhood, 1150 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
66%
No DBI
violation
34%
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.

Estimated permit spend (past 7 years)

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

Construction spend, owner's portfolio

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

Building permits, owner's portfolio

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

12-Month risk forecast
Moderate failure risk 34%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

1403 18Th Ave apartment reviews

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On the map

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The story over time

1403 18Th Ave event timeline

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

2026
311 Request May 19
Garbage and debris
electronics

See all 4 events

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

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Every record we have

Full data for 1403 18Th Ave apartments

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

Side by side

How 1403 18Th Ave compares to the neighborhood

This building against comparable properties in Inner Sunset. 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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