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2523-2525 Lake St

Lake Street, SF 94121 1386044 2 units · 2 fl · 1936

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 Lake Street — not a forecast
At or below average
avg 0.6
0
FewerMore

This building has 0 novs (7y), at or below the Lake Street average of 0.6.

Rent & eviction protection

Is 2523-2525 Lake 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 1936
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RM1
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 1936
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 built1936
Total area3,540 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1386044
Ownership

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

Owner name
Mailing address
Ronald C Nunan 50 Mounds Rd #802 San Mateo CA 94402
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.

2525 Lake St, San Francisco, CA 94121
2523 Lake St, San Francisco, CA 94121
Augrented Insights
Initial analysis

This two-unit, two-story multi-family residential building, located at 2523-2525 Lake Street in the Lake-Presidio neighborhood, was constructed in 1936 and is currently owned by Lake Street LLC. The building has undergone several significant improvements and faced various challenges over the years. Most notably, in 2016, the property experienced serious issues including mold/mildew problems, weather-proofing deficiencies in the rear bedroom, and concerns regarding lead-based paint, all of which were officially documented as violations and subsequently abated by May 2016. There was also an investigation into an illegal dwelling unit in 2004, when complaints were filed regarding a ground floor structure behind the garage that allegedly included living space and kitchen facilities, representing an improper change of occupancy from R-3 to R-1; this matter was officially closed as abated.

The building's maintenance history shows attention to necessary improvements, including window replacements in 2003-2004 (upgrading from aluminum to vinyl), a complete reroofing in 1996, and plumbing work in 2011 involving the replacement of a section of the house sewer line and trap. More recently, there has been a pattern of parking-related issues, with multiple documented cases of driveway blocking between 2019 and 2024, though these are not directly related to building conditions or habitability. The most recent building permits show limited activity, with only a street space permit issued in 2010, suggesting minimal major improvements in recent years. The property has generally maintained compliance with housing codes following the 2016 violations, though the age of the building and its documented history of mold and lead paint concerns warrant attention to ongoing maintenance and safety protocols.

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

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Risk rating

How 2523-2525 Lake 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
79thpercentile

Out of 660 buildings in this neighborhood, 139 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
88%
No DBI
violation
12%
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.

DBI complaint rate, owner's portfolio

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

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

2523-2525 Lake St apartment reviews

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On the map

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8 found
The story over time

2523-2525 Lake St event timeline

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

2025
Plumbing Permit Nov 30
Work category: 2pb; replacing old galvanized main water pipe underground from the water meter to the building. install new main water shut off with prv valve and hose bib.
Complete
Building PermitMay 19
Re-roofing: remove and replace roofing material / existing roofing material (in-kind)

See all 2 events

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

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Every record we have

Full data for 2523-2525 Lake St apartments

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

Side by side

How 2523-2525 Lake St compares to the neighborhood

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