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3878-3880 23Rd St

Noe Valley, SF 94114 3627023 2 units · 3 fl · 1900

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 Noe Valley — not a forecast
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 3878-3880 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 1900
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH3
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 1900
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
Floors3
Year built1900
Total area3,432 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3627023
Ownership

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

Mailing address
Ryer Kelly Anne & Safreed S 3880 23Rd St San Francisco CA 94114
Last sale
May 23, 2018

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.

3878 23rd St, San Francisco, CA 94114
3880 23rd St, San Francisco, CA 94114
Augrented Insights
Initial analysis

The three-story, two-unit multi-family residential building at 3878-3880 23rd Street in Noe Valley, owned by the Ryer-safreed Revocable Trust, has undergone several significant improvements since its construction in 1900. Most recently, in 2024, the property received a new boiler installation in the garage, following earlier upgrades including a backflow prevention device installation (2023), water heater replacement with an 80-gallon heat pump system (2023), and a mini-split HVAC system installation (2021). The building has maintained a focus on sustainability with the installation of solar panels (2008) and electric vehicle charging infrastructure (2017).

Historical maintenance records show attention to structural integrity and resident comfort, including dry rot repairs to the front of the house in 2018. A notable historical incident occurred in 1994 regarding unsafe back stairs, which were promptly addressed through temporary measures. The property has experienced recurring parking enforcement issues in recent months, with multiple citations and complaints about driveway blocking throughout 2024, though these are typically resolved upon officer response. While the building has undergone numerous plumbing and electrical upgrades since 2008, including a complete rewiring and 200-amp service upgrade, there are no current active building complaints, and all recent permits have been properly completed and closed. A proposed renovation plans were submitted to demolish the existing structure and replace it with a new three-story, two-unit building, though its current status is listed as informational.

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

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Risk rating

How 3878-3880 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

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
65thpercentile

Out of 1879 buildings in this neighborhood, 658 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
84%
No DBI
violation
16%
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.

Neighborhood (ZIP code)

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

Building size

Total floor area — a proxy for building scale and the number of systems (plumbing, electrical, HVAC) that can fail.

12-Month risk forecast
Low failure risk 16%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

3878-3880 23Rd St apartment reviews

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The story over time

3878-3880 23Rd St event timeline

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

2025
311 Request Dec 18
Other illegal parking
Parking Enforcement
Building PermitNov 18
Solar permit: ballasted: n, including 1 energy storage unit, of 240 vac, with 15 kwh each in capacity, ess units will not be closer than 3 feet | install franklin 15 kwh ess

See all 9 events

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

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Every record we have

Full data for 3878-3880 23Rd St apartments

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

Side by side

How 3878-3880 23Rd St compares to the neighborhood

This building against comparable properties in Noe Valley. Toggle filters to narrow the peer group.

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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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