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451 4Th Ave

Inner Richmond, SF 94118 1540010 2 units · 2 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 Inner Richmond
Above average
avg 0.9
10
FewerMore

This building has 10 novs (7y), above the Inner Richmond average of 0.9.

Rent & eviction protection

Is 451 4Th 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 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
Floors2
Year built1900
Total area2,800 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1540010
Ownership

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

Owner name
Ekeh Innocent & Agatha
Mailing address
453 4th Ave San Francisco CA 94118
Last sale
050995

Landlord portfolio

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

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Augrented Insights
Initial analysis

The two-unit multi-family residential building at 451 4th Avenue in San Francisco's Inner Richmond district, owned by Ekeh Innocent & Agatha, was constructed in 1900 and has experienced several significant maintenance issues over the past decades. Most notably, in 2016-2017, the property faced multiple violations that escalated it to "nuisance" status, including unaddressed repairs to stairs, corner trim, and the presence of rubbish, along with safety concerns regarding fire hazards, inadequate lighting, and missing smoke detectors. These violations were ultimately resolved by February 2017 through various repairs and compliance measures, including staircase repairs costing $250.

Recent history shows ongoing maintenance challenges, with complaints in early 2018 regarding water issues, including a leaking backdoor well and plumbing problems. The building's maintenance record reveals attention to various structural and safety concerns over the years, including termite treatment in 1986, ground floor alterations in 1987, and various interior improvements in the 1990s. Historical complaints from 2002 indicated serious issues including lack of heat, plumbing problems, and environmental concerns, which were addressed at that time. While recent years show fewer building-specific complaints, there have been multiple parking enforcement issues in the vicinity, with several citations issued between 2021-2022 for vehicles blocking sidewalks and driveways, though these are external to the building's condition and operation.

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

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Risk rating

How 451 4Th 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
69th percentile

Out of 1723 buildings in this neighborhood, 534 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
87%
No DBI
violation
13%
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.

Building age

Older buildings tend to have more maintenance challenges; SF's pre-1906 earthquake housing stock carries distinct risk.

Estimated permit spend (past 7 years)

Dollar value of permits pulled at this address — large recent spend can signal deferred-maintenance catch-up.

Construction spend, owner's portfolio

Estimated permit value across all of this owner's buildings.

12-Month severity forecast
No violation 80.3%
Moderate concern 13.9%
Severe concern 5.9%
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

451 4Th Ave event timeline

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

No dated public records on file yet.
Every record we have

Full data for 451 4Th Ave apartments

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

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

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