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142-148 Irving St

Inner Sunset, SF 94122 1751013 4 units · 2 fl · 1922

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 142-148 Irving 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 1922
2 or more units
4 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 1922
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
Units4
Floors2
Year built1922
Total area5,930 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1751013
Ownership

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

Mailing address
Costamagna Joan A & Arthur 71 Surfwood Cir San Rafael CA 94901
Last sale

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.

144 Irving St, San Francisco, CA 94122
142 Irving St, San Francisco, CA 94122
148 Irving St, San Francisco, CA 94122
146 Irving St, San Francisco, CA 94122
Augrented Insights
Initial analysis

The two-story multi-family residential building at 142-148 Irving Street in the Inner Sunset, owned by Arthur J & Joan A Costamagn, has experienced several significant maintenance issues over the past decade, with some concerns remaining unresolved as of 2023. Most notably, there are three active violations from 2014 related to building maintenance, including concerns about lead paint disturbance, fire proofing materials, weather proofing on siding, and combustible storage. The property has a documented history of water-related issues, particularly concerning sewer and drainage problems, with multiple permits issued for repairs between 2013 and 2015, including a substantial retaining wall installation in 2016 to improve drainage at a cost of $5,000. Structural concerns have been addressed through various permits, including dry rot repairs to the back stairs and work on the rear exterior stairway.

The building's maintenance record shows regular attention to infrastructure upgrades, such as the installation of a new tankless water heater in 2018 and various street space permits from 2016-2018. Historical violations from 2003 were resolved within two months and included repairs to fire proofing, self-closing doors, and stairs. The property has undergone various plumbing and electrical improvements, including garage door opener installation in 2003 and sewer line repairs in 2013. While recent 311 calls from 2024 primarily relate to street cleaning and graffiti on nearby infrastructure, these external issues are not directly related to the building's condition. The persistent nature of some 2014 violations, particularly regarding weatherproofing and lead paint concerns, suggests that while many historical issues have been addressed, certain maintenance challenges remain at this nearly century-old property.

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

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Risk rating

How 142-148 Irving 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
26thpercentile

Out of 1493 buildings in this neighborhood, 1105 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
68%
No DBI
violation
32%
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.

Number of units

The number of units affects how the model reads complaint and violation totals — more units means more potential sources.

Neighborhood (ZIP code)

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

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
Moderate failure risk 32%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

142-148 Irving St apartment reviews

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The story over time

142-148 Irving St event timeline

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

2026
311 Request May 05
Not offensive
pole

See all 5 events

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

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Every record we have

Full data for 142-148 Irving St apartments

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

Side by side

How 142-148 Irving St 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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