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4731-4733 Mission St

Excelsior, SF 94112 6084025 4 units · 2 fl · 1949

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 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 4731-4733 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 1949
2 or more units
4 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
Units4
Floors2
Year built1949
Total area3,450 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot6084025
Ownership

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

Owner name
Liu Sally L
Mailing address
4731-4733 Mission St San Francisco CA 94112
Last sale
051500

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.

4733 Mission St, San Francisco, CA 94112
4731 Mission St, San Francisco, CA 94112
Augrented Insights
Initial analysis

The property at 4731-4733 Mission Street is a two-story, four-unit multi-family residential building constructed in 1949, currently owned by Sally L Liu. Recent complaints (2023) indicate ongoing issues with common area lighting and vacant storefronts, part of a pattern of concerns about the building's maintenance and habitability. The building has a documented history of infrastructure and maintenance issues, particularly during 2016-2018, including problems with heating systems, windows, and roof-related water damage. Multiple permits show repairs to these systems, including heater replacements, window installations, and roof work totaling substantial investment amounts. There was a period of significant code violations and complaints in 2016-2017, involving heating system failures, window maintenance, and various interior surface problems, most of which were addressed through subsequent repairs and improvements.

More recent history shows electrical upgrades underway in 2024, with a permit issued for the replacement of electrical systems, though there are still active complaints about lighting and common area maintenance as of mid-2023. The building has undergone various improvements over the years, including reroofing projects in 2016-2017 and the installation of new central heaters, though maintenance issues have persisted. Historical complaints from 2000 regarding fire safety (manual release at doors and egress obstruction) suggest ongoing attention to building safety systems. The property has also experienced recent exterior maintenance issues, as evidenced by multiple 311 calls regarding cleaning and graffiti in 2023. A significant portion of the building's history involves compliance work and repair projects related to various code violations and tenant complaints, reflecting ongoing challenges with maintaining building systems and addressing tenant concerns promptly.

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

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Risk rating

How 4731-4733 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
9th percentile

Out of 337 buildings in this neighborhood, 307 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
45%
No DBI
violation
55%
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 43.5%
Moderate concern 34.9%
Severe concern 21.5%
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

4731-4733 Mission St event timeline

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

2026
DBI Complaint Jun 01
The tenant is oxygen dependent and states there is a strong sewage odor coming from the unit, unknown source. there is no screens on the window and they can't open windows to ventilate the unit because flies come in. there is 3 kids in the unit, and one child is disabled.
Housing Inspection Services
311 RequestApr 22
Public works

See all 11 events

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

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Every record we have

Full data for 4731-4733 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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