Free SF apartment background check

645-647 Broderick St

North Panhandle, SF 94117 1183004 2 units · 2 fl · 1900

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 North Panhandle
At or below average
avg 1.7
0
FewerMore

This building has 0 novs (7y), at or below the North Panhandle average of 1.7.

Rent & eviction protection

Is 645-647 Broderick 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 1900
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 built1900
Total area2,760 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1183004
Ownership

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

Owner name
Chen Gloria
Mailing address
645 Broderick St San Francisco CA 94117
Last sale
110707

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.

645 Broderick St, San Francisco, CA 94117
647 Broderick St, San Francisco, CA 94117
Augrented Insights
Initial analysis

The two-unit residential building at 645-647 Broderick Street, owned by Gloria Chen, has a significant history of structural issues and building code violations dating back to 2007. The 1900 flats and duplex structure, located in Park North, underwent multiple permitted repairs in 2007-2008 including roof repairs, deck tiling, floor repairs, and concrete slab work in both the garage and basement areas, with a total cost exceeding $40,000. However, most of these permits expired without required inspections, leading to multiple active Notices of Violation (NOV) under San Francisco Building Code Section 106A.4.4, specifically relating to permits #200707187129, #200710196017, #200711208658, and #200802154937.

The building has a documented history of short-term rental violations, with complaints in 2009 and 2014 regarding illegal vacation rental use, including allegations of continuous Airbnb operations, tenant disturbances, and waste management issues. These violations resulted in one NOV being marked as "Abated" in 2013, though related active violations remain on record. More recently, there has been ongoing concern about illegal short-term rental activity, with an alleged "illegal tourist hotel" status recorded in Planning Records. The property has also experienced periodic parking enforcement issues, with multiple calls relating to blocked driveways and sidewalk parking between 2020 and 2023, though most were resolved without citations. However, one citation was issued in April 2021 for driveway blocking.

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

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Risk rating

How 645-647 Broderick 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
56th percentile

Out of 797 buildings in this neighborhood, 351 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
78%
No DBI
violation
22%
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.

Building age

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

Property class: multi-family flat

2–4 unit flats (class F) are a common SF building type with their own maintenance and complaint patterns.

Estimated permit spend (past 7 years)

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

12-Month severity forecast
No violation 69.8%
Moderate concern 21.2%
Severe concern 9.0%
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

645-647 Broderick St 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 645-647 Broderick 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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