Tweto Architecture
Front exterior of the Siskiyou Street Recording Studio, a blue-green accessory structure with dark trim, gable roof, covered entry, and new landscaping with stone retaining wall, Beaumont neighborhood Portland, by Tweto Architecture

Siskiyou Street Recording Studio

Accessory Structure · Northeast Portland

This 650 SF accessory structure was designed primarily as a recording studio, but was also configured with the possibility for a future ADU conversion. After determining that an existing garage would not be adaptable to the specific requirements of the recording studio, it was replaced with new construction.

Contractor: AKOS Construction

Live room with drum kit, mixing station, guitars on the wall, blue sofa, and tall acoustic panels below 11-foot ceilings, Siskiyou Street Recording Studio by Tweto Architecture
Live room from the opposite end showing grand piano, guitars on wall, blue sofa with yellow pillow, acoustic panels, and clerestory windows, Siskiyou Street Recording Studio by Tweto Architecture

The rigorous demands of soundproofing and acoustic performance of the interior added an extra layer of complexity to the design and construction. Since sound transmission closely follows heat transmission, the studio is also a case study in high-performance design. Extra thick double 2x4 walls, exacting air-sealing, and high-performance windows both provide sound isolation and reduce energy use while increasing comfort.

The interior is divided into a large live room built to very specific proportions, including 11-foot ceilings dictated by acoustic performance. A control room facing the street, designed to work as a bedroom, features a floating bay window. A full bathroom allows the studio to be used as a guest house when desired. One of the primary challenges was achieving the required ceiling height while still creating a neighborhood-scaled and contextual structure in this highly visible location in Portland's traditional Beaumont neighborhood. Large overhangs with enclosed soffits, slab-on-grade construction, and careful design of proportion and openings address that challenge.

Front exterior of the recording studio with blue-green lap siding, gable roof, and new plantings along a stone retaining wall, Siskiyou Street Recording Studio by Tweto Architecture
Street view showing the recording studio beside the main house, with stone retaining walls and new landscape plantings in the foreground, Beaumont neighborhood Portland, by Tweto Architecture
Live room looking toward the control room window with navy sofa and yellow pillows, guitars on the wall, and organ in the corner, Siskiyou Street Recording Studio by Tweto Architecture
Control room with blue walls and interior glass window looking through to the live room, microphone stands and guitar in foreground, Siskiyou Street Recording Studio by Tweto Architecture
Studio and ADU floor plan showing live room, control room and bedroom, iso booth and bathroom, closet, and future kitchen location, Siskiyou Street Recording Studio by Tweto Architecture Bathroom with white subway tile walls, black hexagonal tile shower floor, round wood-framed mirror, and pedestal sink, Siskiyou Street Recording Studio by Tweto Architecture
Live room with drum kit at left, navy sofa in the center, guitars and control room window at right, and chandelier above, Siskiyou Street Recording Studio by Tweto Architecture
Control room with blue-gray walls and floating bay window to the street, microphone stands, guitar amp, and upright piano at left, Siskiyou Street Recording Studio by Tweto Architecture
Full-length view of the live room with drum kit in foreground, two brass chandeliers, angled acoustic panels lining the tall walls, and control room visible at the far end, Siskiyou Street Recording Studio by Tweto Architecture
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