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Private residential spa · Newton, Massachusetts

An abandoned garage.
A complete retreat.

An unused secondary garage was rebuilt as a highly customized home wellness space designed around warmth, privacy, and everyday use.

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Residential wellness conversion · Newton, Massachusetts

From forgotten outbuilding to private home spa.

JAB took the secondary garage back to its structure, reworked the interior, and delivered a fully finished wellness suite combining custom woodwork, stone and tile, integrated lighting, and specialized spa spaces.

Project typeResidential wellness conversion
Existing useAbandoned secondary garage
New usePrivate home spa
Signature spacesSauna · Steam shower · Lounge
LocationNewton, MA
Completed private spa lounge with custom wood walls and illuminated salt-block wall
01 Completed wellness lounge
Private spa lounge with illuminated salt-block wall and built-in cabinetry
02 Illuminated salt wall and lounge
Integrated aquarium within custom wood cladding
03 Integrated aquarium and custom woodwork
Glass-fronted private sauna with tiered benches and concealed lighting
04 Glass-fronted private sauna
Tiled steam shower with glass enclosure and built-in seating
05 Steam shower with built-in seating

Behind the finished space

The structure behind the retreat.

The conversion began inside an unfinished garage shell. New framing, insulated assemblies, building systems, and extensive finish carpentry reshaped it into a purpose-built wellness environment.

Abandoned secondary garage before the private spa conversion
Before The abandoned secondary garage
Secondary garage stripped to its original framing before the spa conversion
Build Existing structure opened for reconstruction
New interior walls framed inside the garage
Build New layout, framing, and insulated assemblies
Custom wood wall installation during construction
Build Custom woodwork taking shape

What the work included

  • Complete interior demolition and space conversion
  • New layout, framing, insulation, and building systems
  • Custom wood-clad walls, ceilings, benches, and cabinetry
  • Glass-fronted sauna with integrated lighting
  • Tiled steam shower with built-in seating
  • Illuminated salt-block feature wall
  • Integrated display aquarium
  • Finished bathroom and spa support spaces

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