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2509 Irving St

Central Sunset, SF 94122 1781050 2 units · 2 fl · 1913

This building has far more open problems than almost any other in the neighborhood. A handful of unresolved issues. Worth a careful walk-through and pointed questions.

NOVs (7y) vs. neighborhood
Compared to a typical building in Central Sunset
Above average
avg 0.7
1
FewerMore

This building has 1 novs (7y), above the Central Sunset average of 0.7.

Rent & eviction protection

Is 2509 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 1913
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
NC2
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
Units2
Floors2
Year built1913
Total area2,677 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1781050
Ownership

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

Owner name
Liang/Cheong Family Trust
Mailing address
Liang Qi Xiang & Cheong Lai 175 De Soto St San Francisco CA 94127
Last sale
031820

Landlord portfolio

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

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Augrented Insights
AI summary

The two-unit multi-family residential building at 2509 Irving Street, built in 1913 and currently owned by the Liang/Cheong Family Trust, has undergone several significant improvements and faced various maintenance challenges over the past two decades. Most notably, in 2019, the property underwent a substantial interior renovation costing $28,000, which included kitchen remodeling, bathroom reconfiguration to add laundry facilities, and water heater replacement, with associated plumbing and electrical work completed successfully. Earlier improvements included a complete re-roofing in 2015 ($18,300) and a critical stairway replacement project in 2002, which converted the structure from wood to steel/concrete for improved safety.

The building has experienced some concerning recent issues, particularly in 2023 when a complaint was filed regarding the building being in a vacant commercial/business state, which remains active as of October 2023. There was also a complaint in 2021 regarding potentially non-compliant construction from a previous owner, though this was closed in December 2021. The property has faced several maintenance challenges in recent years, as evidenced by multiple 311 calls for graffiti removal on both the building and surrounding sidewalks between 2023 and 2024, and recurring reports of garbage and debris issues in late 2024. A construction-related noise complaint was filed in November 2024 and transferred for tracking. While these maintenance issues are documented as resolved through various city services, they indicate ongoing care and maintenance challenges facing the property in its current condition.

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Risk rating

How 2509 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

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
4th percentile

Out of 814 buildings in this neighborhood, 781 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
46%
No DBI
violation
54%
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 tenant complaints (past 7 years)

Formal complaints tenants filed with DBI about this building over 7 years.

DBI complaint rate, owner's portfolio

Per-building complaint rate across the owner's portfolio.

Property class: apartment building

Apartment building — this property classification influences expected violation rates.

12-Month severity forecast
No violation 24.5%
Moderate concern 61.9%
Severe concern 13.6%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

2509 Irving St apartment reviews

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The story over time

2509 Irving St event timeline

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

2026
311 Request May 06
Not offensive
other

See all 6 events

Full history back to 2021 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 2509 Irving 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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