Free SF apartment background check

4809 Mission St

Excelsior, SF 94112 6272031 4 units · 4 fl

This building has more problems than most buildings in this neighborhood. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.

NOVs (7y) vs. neighborhood
Compared to a typical building in Excelsior
At or below average
avg 1.4
0
FewerMore

This building has 0 novs (7y), at or below the Excelsior average of 1.4.

Rent & eviction protection

Is 4809 Mission 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 unknown
2 or more units
4 units
Property type
Multi-Family Residential
Zoning
NC3
Not rent-controlled. Buildings constructed after 1978 are generally exempt from SF rent increase limits under the Costa-Hawkins Act.

Based on SF Assessor records. Not legal advice — confirm with the SF Rent Board.

Building characteristics
Units4
Floors4
Year built
Total area5,688 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot6272031
Ownership

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

Owner name
B E Market Llc
Mailing address
1025 Guerrero St San Francisco CA 94110
Last sale
050918

Landlord portfolio

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

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Augrented Insights
Initial analysis

The 4-story multi-family residential building at 4809 Mission St, Excelsior, has a complex history dating back to its original construction permit in 2001, which authorized 3 residential units with commercial space. Multiple permit violations were recorded in 2001 and 2003 regarding unauthorized construction of property line walls and occupancy without a Certificate of Final Completion. Subsequent issues emerged between 2010-2014, including complaints of unauthorized construction, occupancy violations, and numerous fire safety concerns. Recent history shows a pattern of maintenance and compliance issues, with multiple complaints about garbage accumulation and debris (most recently in 2024), a fire sprinkler system violation in 2021, and various permit-related matters. The building also underwent ground-floor retail-to-restaurant conversion in 2019 ($35,000), with associated plumbing work completed in the same year. Recent permits from 2020 indicate efforts to address previous violations, though historical records suggest ongoing compliance challenges. The property has accumulated numerous 311 calls in 2024 primarily related to sanitation issues, including overflowing garbage and debris. Fire safety violations were notably documented during 2011-2012, focusing on exits/fire escapes, alarm systems, and emergency lighting.

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

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Risk rating

How 4809 Mission 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
28th percentile

Out of 337 buildings in this neighborhood, 243 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
62%
No DBI
violation
38%
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.

Neighborhood location

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

DBI tenant complaints (past 7 years)

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

12-Month severity forecast
No violation 43.3%
Moderate concern 34.5%
Severe concern 22.3%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

4809 Mission St apartment reviews

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The story over time

4809 Mission St event timeline

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

2026
311 Request Jun 02
Flooding
on property

See all 10 events

Full history back to 2019 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 4809 Mission St 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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