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688-690 44Th Ave

Outer Richmond, SF 94121 1586020E 2 units · 2 fl · 1946

A handful of records on file over the last seven years, and our model puts this building at a low risk of further maintenance problems in the next 12 months. A few records worth reading before you sign. Check whether they were closed out, and ask what was actually fixed.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Outer Richmond — not a forecast
At or below average
avg 0.7
0
FewerMore

This building has 0 novs (7y), at or below the Outer Richmond average of 0.7.

Rent & eviction protection

Is 688-690 44Th 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 1946
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.

Statewide backstop · AB 1482

California Tenant Protection Act of 2019

Even when a building isn't covered by local rent stabilization, the statewide Tenant Protection Act (AB 1482) may still apply. It caps annual rent increases and requires the landlord to state a legal reason to end most tenancies.

15+ years since occupancy
Built 1946
Annual rent increase cap
5% + CPI, max 10%
Just-cause eviction
After 12 months
Local rent control likely takes priority. This building appears to fall under the local ordinance above, which is stronger than AB 1482. Where a local just-cause ordinance applies, its rules govern instead of the state cap.

AB 1482 does not apply to single-family homes and condos unless owned by a corporation, REIT, or an LLC with a corporate member; to owner-occupied duplexes; or to deed-restricted affordable housing. The Act is in effect until January 1, 2030. Not legal advice — see the California landlord–tenant guide.

Building characteristics
Units2
Floors2
Year built1946
Total area2,332 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1586020E
Ownership

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

Owner name
Mailing address
Steven & Siu Lai Ng 6693 Rose Bridge Dr Roseville CA 95678
Last sale
November 21, 2012

Landlord portfolio

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

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Multiple entrances & addresses

Included addresses

All street addresses sharing this blocklot that are covered by this report.

690 44th Ave, San Francisco, CA 94121
688 44th Ave, San Francisco, CA 94121
Augrented Insights
Initial analysis

The Ng Family Trust owns this two-unit multi-family residential building located in San Francisco's Outer Richmond neighborhood. Built in 1946, the two-story structure is classified as a Flats & Duplex property. The building's maintenance record shows limited documented work, with only one significant permit on file from 2004 for a reroofing project costing $6,800, though this permit has since expired.

The property has experienced several notable incidents over the past decade. Most concerning is an active complaint filed in June 2019 regarding unauthorized construction work producing excessive noise from hammering and power tools, which reportedly took place without proper permits. In July 2021, there was a sewage system issue involving a 4-inch sewer vent that required intervention from PUC Sewer Operations and was subsequently resolved. Two additional minor incidents occurred in 2014: one involving an abandoned orange Honda motorcycle that was gone when authorities arrived to investigate, and another regarding a flickering streetlight on a wooden pole that PG&E resolved within four days. While these issues suggest occasional maintenance and compliance challenges, it's worth noting that most incidents were addressed and resolved through proper channels.

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

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Risk rating

How 688-690 44Th 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

Lower risk — safer than most nearby

DBI rarely finds violations here. Strong maintenance history and a clean complaint record.

Typical — about average for the neighborhood

Some past violations or complaints on record. Worth asking the landlord about any open issues before signing.

Higher risk — riskier than most nearby

Elevated violation and complaint history. DBI has found issues here before and is statistically likely to again.

Neighborhood percentile
37thpercentile

Out of 1040 buildings in this neighborhood, 655 are predicted to be safer. The band is relative to this neighborhood, so a share of every neighborhood falls in each colour.

RiskiestSafest
Predicted 12-month outcome
82%
No DBI
violation
18%
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.

Neighborhood location

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

DBI complaints, owner's portfolio

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

Owner's portfolio size

Number of SF parcels this owner is registered on — larger portfolios have distinct risk patterns.

12-Month risk forecast
Low failure risk 18%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

688-690 44Th Ave apartment reviews

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On the map

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Buildings nearby
8 found
The story over time

688-690 44Th Ave event timeline

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

No dated public records on file yet.
Every record we have

Full data for 688-690 44Th Ave apartments

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

Side by side

How 688-690 44Th Ave compares to the neighborhood

This building against comparable properties in Outer Richmond. Toggle filters to narrow the peer group.

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