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4787-4791 Mission St

Excelsior, SF 94112 6084020 14 units · 2 fl · 1909

This building has far more open problems than almost any other in the neighborhood. Renters here report frequent, slow-to-fix problems. Get repair promises in writing and check the unit before signing.

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 4787-4791 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 1909
2 or more units
14 units
Property type
Multi-Family Residential
Zoning
NC3
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
Units14
Floors2
Year built1909
Total area6,500 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot6084020
Ownership

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

Owner name
Souza Altamir P & De Souza
Mailing address
241 Reed St Mill Valley CA 94941
Last sale
091694

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.

4789 Mission St, San Francisco, CA 94112
4791 Mission St, San Francisco, CA 94112
4787 Mission St, San Francisco, CA 94112
Augrented Insights
Initial analysis

The two-story, 14-unit multi-family residential building at 4787-4791 Mission St in the Excelsior neighborhood, owned by Altamir P & De Souza, has experienced several significant maintenance and safety issues over the past decade. Most recently, in 2023, the building received multiple fire safety violations related to blocked exits, exit maintenance, extinguishers, and alarm systems, all of which were documented between February and March 2023. The property underwent substantial commercial improvements in 2016-2017, including the conversion from a market to a restaurant (Mama Mari's Taqueria) with associated electrical and plumbing work, though this period also saw some gas line repair issues, including a leak in 2018 and several gas line modifications in 2019.

Previous building history reveals persistent fire safety concerns, with documented violations in 2005 and 2007 regarding exit signs, fire alarms, and extinguishers that were eventually abated. The building experienced two sewage-related incidents in 2023-2024, and more recent complaints include parking enforcement issues and occasional sanitation matters. Historical records show several routine housing inspections between 1996 and 2014, with various violations noted regarding security, fire safety, and plumbing systems, most of which were resolved through correction orders. The property has maintained active commercial use throughout its history, with multiple permits for retail and restaurant operations, including the recent installation of a UL-300 hood and duct fire suppression system in 2019.

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

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Risk rating

How 4787-4791 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
3th percentile

Out of 337 buildings in this neighborhood, 327 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
24%
No DBI
violation
76%
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.

Building size

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

12-Month severity forecast
No violation 9.7%
Moderate concern 32.4%
Severe concern 57.9%
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

4787-4791 Mission St event timeline

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

2026
311 Request Jun 10
Sewage back-up discharge
from side sewer vent
Fire ComplaintFeb 16
Blocked Exits

See all 13 events

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

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Every record we have

Full data for 4787-4791 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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