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547-549 6Th Ave

Inner Richmond, SF 94118 1549009 2 units · 2 fl · 1907

This building has significantly more problems than most nearby buildings. 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
5
FewerMore

This building has 5 novs (7y), above the Inner Richmond average of 0.9.

Rent & eviction protection

Is 547-549 6Th 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 1907
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH3
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 built1907
Total area2,300 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1549009
Ownership

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

Owner name
Wong Stephen Ken
Mailing address
547 6th Ave San Francisco CA 94118
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.

549 06th Ave, San Francisco, CA 94118
547 06th Ave, San Francisco, CA 94118
Augrented Insights
Initial analysis

The two-unit residential building at 547-549 6th Avenue in San Francisco's Inner Richmond neighborhood is a two-story flats/duplex structure built in 1907, currently owned by Stephen Ken Wong. The property has experienced several significant maintenance and compliance issues in recent years, most notably a series of active violations filed in October 2022 related to unapproved wiring, stair repairs, and an unauthorized rear storage building, which were formally documented in an August 2024 Notice of Violation. The owner has taken some steps to address these violations, as evidenced by completed permits from November 2024 for stair repairs, removal of an existing shed, and rectification of unauthorized wiring. A more recent positive development includes the issuance of an electrical permit in March 2023 for a new metering system installation, showing some commitment to system upgrades.

The building's maintenance history shows prior improvement work, such as kitchen counter replacement in 2011 and window replacements in 1997 (though the latter permit expired). Recent 311 calls near the property have primarily concerned parking violations on the sidewalk, with multiple citations issued between 2021 and 2023, suggesting a recurring issue with parking enforcement in the area. Planning records indicate there was an effort to address unauthorized structures and repair dry rot damage to exterior stairs, though it appears some compliance issues remain, as the building still has active violations related to various building code requirements. The property has also generated several sanitation-related service calls, including requests for garbage can management and general cleaning in the vicinity, though these appear to be more related to street maintenance rather than direct building issues.

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

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Risk rating

How 547-549 6Th 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
15th percentile

Out of 1723 buildings in this neighborhood, 1465 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.

DBI tenant complaints (past 7 years)

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

Permit rate, owner's portfolio

Per-building permit rate across the owner's portfolio.

NOV rate, owner's portfolio

Per-building NOV rate across everything this owner manages — high rates signal pattern neglect.

12-Month severity forecast
No violation 51.5%
Moderate concern 41.7%
Severe concern 6.8%
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

547-549 6Th Ave event timeline

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

2024
Planning Record Dec 09
Remove unauthorized detached structures from rear yard; repair dry rot damage exterior stair at the rear of the building but within the buildable area of the lot. All work per plans; no other work.
Closed
Building PermitNov 21
To comply w/nov # 202296712 #2,3,4 repair (e) stair (less than 50%) and remove (e) shed and not permitted wiring

See all 9 events

Full history back to 2022 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 547-549 6Th Ave apartments

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

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