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General ConstructionWillow GlenPermit issued

New ADU Construction at 1609 Knollwood Avenue, San Jose

1609 KNOLLWOOD AV 2, Willow Glen, 95125

Winston

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Reported project cost

$65,794

As declared on the permit filing. New Construction · ADU Accessory Dwelling Unit.

Issued
August 21, 2026
Expires
—
License
—

What was permitted

Homeowners in Willow Glen can see the costs associated with new Accessory Dwelling Units (ADUs) through this permit. This project involves building an attached JADU, encompassing electrical, plumbing, and mechanical work.

This permit was issued on August 21, 2026, and is currently active. The estimated project cost for this new construction is $65,794, with BROTHER & BROTHER BUILDERS listed as the contractor.

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View the official permit record

Tracking number, work description, cost and dates

Tracking number2026-113300-RS
Work permit #—
Job filing number—
Work typeNew Construction · ADU Accessory Dwelling Unit
StatusActive
Job descriptionBuilding, Electrical, Plumbing, Mechanical work: ATTACHED JADU
Floor / unit—
Estimated cost$65,794
Approved—
IssuedAugust 21, 2026
Expires—
BBL—
BIN—

Property owner

Hsu Po Shan And Shannon Trustee

Related searches

ADU constructionWillow GlenSan Josenew constructionJADU$50k-$100k