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691-693 6Th Ave

Inner Richmond, SF 94118 1638017 2 units · 2 fl · 1907

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
At or below average
avg 0.9
0
FewerMore

This building has 0 novs (7y), at or below the Inner Richmond average of 0.9.

Rent & eviction protection

Is 691-693 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
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 built1907
Total area2,750 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1638017
Ownership

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

Owner name
Mary L Ng Lvg Tr
Mailing address
Mary L Ng, Trustee 691 6Th Ave San Francisco CA 94118
Last sale
102406

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.

691 06th Ave, San Francisco, CA 94118
693 06th Ave, San Francisco, CA 94118
Augrented Insights
Initial analysis

The two-unit residential building at 691-693 6th Avenue in San Francisco's Inner Richmond neighborhood is a two-story flats and duplex structure built in 1907 and currently owned by the Mary L Ng Living Trust. The property's documented history shows several significant improvements and maintenance work over the past four decades, with the most substantial renovation occurring in 2003 when unit 693 received a kitchen remodel and new full bathroom installation, accompanied by corresponding electrical work (3 lights, 3 switches, 7 receptacles, 3 circuits) at a cost of $15,000. Earlier improvements include the installation of six windows in 1985, reroofing in 1991, and street space work in 2009.

The building's records show minimal issues with only one documented fire incident - a false alarm or call in 700 - and a minor series of maintenance and public space matters, including a 2011 street cleaning issue with loose garbage, a 2013 non-offensive graffiti incident on a pole, and a 2009 loose street sign that required servicing. The most recent interaction with city services was a mailing request to the Rent Board for fee housing inventory information in October 2023, which has been successfully resolved. While the property has undergone various updates over the years, there have been no significant safety violations or concerning incidents recorded.

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

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Risk rating

How 691-693 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
95th percentile

Out of 1723 buildings in this neighborhood, 86 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
93%
No DBI
violation
7%
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.

Estimated permit spend (past 7 years)

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

Building age

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

Building permits, owner's portfolio

Permits pulled across all of this owner's buildings over 7 years.

12-Month severity forecast
No violation 86.0%
Moderate concern 9.5%
Severe concern 4.5%
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

691-693 6Th Ave event timeline

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

2023
311 Request Oct 04
Mailing request
fee housing inventory - mailing request
311 RequestJul 11
Bulky items

See all 2 events

Full history back to 2023 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 691-693 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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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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