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47-51 Crescent Ave

Bernal Heights, SF 94110 5746011 4 units · 2 fl · 1924

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 Bernal Heights
At or below average
avg 1.2
0
FewerMore

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

Rent & eviction protection

Is 47-51 Crescent Ave 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 1924
2 or more units
4 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
Units4
Floors2
Year built1924
Total area3,750 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot5746011
Ownership

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

Owner name
Rachael Cornell Revocable T
Mailing address
Rachael Cornell Trustee 542 Valencia St San Francisco CA 94110
Last sale
000000

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.

49 Crescent Ave, San Francisco, CA 94110
47 Crescent Ave, San Francisco, CA 94110
51 Crescent Ave, San Francisco, CA 94110
Augrented Insights
Initial analysis

The property at 47-51 Crescent Avenue in Bernal Heights is a two-story, four-unit multi-family residential building constructed in 1924, currently owned by the Rachael Cornell Revocable Trust. The building's maintenance history shows several significant issues, particularly in 2003 when multiple violations were documented, including problems with plumbing fixtures, electrical systems, damaged walls, window components, and fire safety equipment. These violations, along with complaints about water damage and mold problems, were addressed and officially abated by December 2003. More recent concerns include a 2017 complaint about mold in various areas and a 2021 complaint regarding construction without permits, though both cases were marked as not active shortly after filing.

The building has undergone several documented improvements over the years, including a reroofing project in 2000 costing $13,000, the addition of a sidewalk door for a second exit in 1989, and fireproofing work in the basement in 1985. A notable electrical repair was completed in 2003 to address code violations, which had been documented in multiple complaints. The property has been subject to regular housing inspections, with a routine inspection of common areas conducted in 2016 currently showing as active. Recent 311 calls from 2019-2024 primarily relate to parking issues and street cleaning matters, which are not directly related to the building's condition or habitability.

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

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Risk rating

How 47-51 Crescent Ave'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
8th percentile

Out of 1276 buildings in this neighborhood, 1174 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
44%
No DBI
violation
56%
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.

Number of units

The number of units affects how the model reads complaint and violation totals — more units means more potential sources.

DBI tenant complaints (past 7 years)

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

Neighborhood location

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

12-Month severity forecast
No violation 29.2%
Moderate concern 24.4%
Severe concern 46.4%
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

47-51 Crescent Ave event timeline

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

2025
311 Request Jun 19
Garbage and debris
glass

See all 2 events

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

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Every record we have

Full data for 47-51 Crescent Ave apartments

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

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