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4037-4039 25Th St

Noe Valley, SF 94114 6548037A 2 units · 4 fl · 1900

This building has a higher-than-average number of open problems nearby. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.

NOVs (7y) vs. neighborhood
Compared to a typical building in Noe Valley
At or below average
avg 1.2
0
FewerMore

This building has 0 novs (7y), at or below the Noe Valley average of 1.2.

Rent & eviction protection

Is 4037-4039 25Th 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 1900
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.

Building characteristics
Units2
Floors4
Year built1900
Total area3,000 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot6548037A
Ownership

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

Owner name
Wahlgren Christopher L
Mailing address
Po Box 309 Inverness CA 94937
Last sale
032619

Landlord portfolio

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

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Multiple entrances & addresses

Included addresses

All street addresses sharing this blocklot that are covered by this report.

4037 25th St, San Francisco, CA 94114
4039 25th St, San Francisco, CA 94114
Augrented Insights
Initial analysis

The property at 4037-4039 25th Street is a 2-unit, 4-story multi-family residential building located in Noe Valley, owned by Christopher L. Wahlgren and constructed in 1900. The building has undergone significant renovations and maintenance work over the past two decades, with particular attention to addressing dry rot issues. Major improvements include comprehensive interior renovations in both units in 2017 (valued at $30,000), partial foundation replacement in 2014, and window replacements in 2013. The property has seen extensive bathroom and kitchen remodels in both units, with work completed in 2009-2010 costing over $50,000, including plumbing updates for multiple bathrooms and kitchens, electrical rewiring, and installation of new features like a gas fireplace.

The building has faced some structural challenges, particularly in 2010 when issues with the penthouse structure led to complaints about unauthorized work and concerns about asbestos debris, though these were promptly addressed and no violations were recorded. More recently, there have been two sewage-related incidents reported in 2023-2024, including a back-up discharge in December 2024, and parking enforcement issues in the vicinity, particularly regarding sidewalk parking violations, though none of these incidents directly impacted the building's structural integrity or resident safety. The property's maintenance record shows regular upkeep and modernization efforts, with most permits marked as complete, though there was one permit filed in 2010 for framing replacement due to dry rot and termite damage that had a valuation of $0.

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

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Risk rating

How 4037-4039 25Th 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
72th percentile

Out of 1879 buildings in this neighborhood, 526 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
85%
No DBI
violation
15%
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.

Neighborhood location

Precise location is a proxy for neighborhood-level risk — some SF blocks have systematically higher DBI activity.

Number of floors

Building height affects maintenance complexity and is one of the size signals the model uses.

Neighborhood (ZIP code)

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

12-Month severity forecast
No violation 71.6%
Moderate concern 15.3%
Severe concern 13.1%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

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The story over time

4037-4039 25Th St event timeline

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

2023
311 Request Apr 10
Abandoned vehicles
DPT Abandoned Vehicles Low

See all 1 events

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

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Every record we have

Full data for 4037-4039 25Th St apartments

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

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