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4082-4086 23Rd St

Noe Valley, SF 94114 3624023 2 units · 2 fl · 1882

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 4082-4086 23Rd 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 1882
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
Floors2
Year built1882
Total area1,500 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3624023
Ownership

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

Owner name
Dwyer Richard & Dina
Mailing address
1403 Myrtle St Calistoga CA 94515
Last sale
042399

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.

4082 23rd St, San Francisco, CA 94114
4086 23rd St, San Francisco, CA 94114
Augrented Insights
Initial analysis

The property at 4082-4086 23rd Street is a two-unit, two-story residential building constructed in 1882 in San Francisco's Noe Valley neighborhood. The building has a documented history of structural issues, particularly concerning dry rot, with multiple repair permits issued between 1999 and 2001 totaling significant costs (starting from $40,000 up to $60,000). During this renovation period, serious concerns emerged in 2000 when a building violation was filed regarding expired permits, inadequate security at the construction site, and exceeding the scope of permits by gutting the structure. This period also saw issues with a caved-in ceiling reported in late 1998 (though this complaint was quickly abated) and electrical work done without proper permits in late 2001.

More recently, the property has faced recurring issues with tree maintenance, particularly concerning lifted sidewalk tree roots, with multiple reports filed between September 2023 and February 2024. A collapsed sidewalk issue was reported and resolved in August 2023. The building's historical permits show various improvements over the years, including window replacements, kitchen and bathroom renovations, furnace replacements, and later repairs to stairs and decks. The most recent significant tree-related issues, which appear to be ongoing as of 2023-2024, suggest continuing challenges with the property's external environment, particularly regarding sidewalk damage and tree maintenance, though these are generally municipal infrastructure issues rather than building structural concerns.

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

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Risk rating

How 4082-4086 23Rd 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
95th percentile

Out of 1879 buildings in this neighborhood, 94 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
93%
No DBI
violation
7%
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.

Building permits, owner's portfolio

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

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 severity forecast
No violation 89.9%
Moderate concern 8.0%
Severe concern 2.1%
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

4082-4086 23Rd St event timeline

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

2025
311 Request Oct 07
Sidewalk defect
lifted sidewalk tree roots
311 RequestSep 29
Not offensive

See all 6 events

Full history back to 2020 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 4082-4086 23Rd St apartments

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

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