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646-650 Balboa St

Inner Richmond, SF 94118 1550029 3 units · 3 fl · 1911

Nothing on record for this building in the last seven years, and our model puts it at a low risk of maintenance problems over the next 12 months. No public enforcement record to go on. Walk the building, ask the current tenants how repairs get handled, and get any promises in writing.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Inner Richmond — not a forecast
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 646-650 Balboa 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 1911
2 or more units
3 units
Property type
Multi-Family Residential
Zoning
RM1
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 1911
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
Units3
Floors3
Year built1911
Total area3,376 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1550029
Ownership

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

Owner name
Mailing address
Ching & Lai Fong Leung Lam, 646 Balboa St San Francisco CA 94118
Last sale
July 21, 2009

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.

648 Balboa St, San Francisco, CA 94118
650 Balboa St, San Francisco, CA 94118
646 Balboa St, San Francisco, CA 94118
Augrented Insights
Initial analysis

The Lam Family Trust owns this three-unit, three-story multi-family residential building located at 646-650 Balboa Street in the Inner Richmond neighborhood. Built in 1911, the property underwent significant renovation and expansion in 2009-2010 when it added two new units (totaling three units), including a full garage and numerous modern upgrades valued at over $526,000. During this major renovation, substantial safety improvements were implemented, including a new fire sprinkler system ($23,000) installed throughout the building with 81 heads, a comprehensive electrical upgrade including new meters, and the installation of a fire alarm system with multiple safety features.

The building experienced serious code enforcement issues in 2007, with multiple violations documented under complaint #200700481 related to sanitation, stair repairs, flooring, handrails, and other maintenance concerns, though these violations were ultimately abated by November 2013. Multiple permits were issued between 2011-2020 to address various system upgrades and compliance issues, including the installation of new HVAC systems, bathroom and kitchen facilities, and to comply with physical inspection requirements. While the building's recent maintenance history (2019-2023) shows some minor street-related issues as reported through 311 calls, these primarily concerned general cleaning and maintenance of public areas rather than building-specific concerns. A fourth-floor addition proposal was filed in planning records but appears to be informational and may not have progressed.

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

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Risk rating

How 646-650 Balboa 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

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
72ndpercentile

Out of 1723 buildings in this neighborhood, 482 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
87%
No DBI
violation
13%
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 complaint rate, owner's portfolio

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

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.

12-Month risk forecast
Low failure risk 13%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

646-650 Balboa St apartment reviews

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On the map

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The story over time

646-650 Balboa St event timeline

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

2023
311 Request May 17
Bulky items
Furniture

See all 2 events

Full history back to 2020 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 646-650 Balboa St apartments

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

Side by side

How 646-650 Balboa St compares to the neighborhood

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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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