Case study

Oak frame garage — Portskewett

A slab already poured the wrong way round, and a scheduled ancient monument under the garden it was going in.

Two-bay oak frame garage with cedar feather-edge cladding and a slate roof, Portskewett
Location
Portskewett, Monmouthshire
Completed
2026
Scale
37.8 m² two-bay garage
How we worked
Full Design & Build
Architect
Ben Bowker
Builder
Main contractor
Photography
Foxtail Oak

The brief

Guy had a 2010 planning consent for a detached garage, kept alive by starting the groundworks inside the five years, and a slab already down. He'd seen an oak building of ours a few miles away and rang us about his own. He wanted two bays — one for a large car, one for the home gym that had lived in a green metal garage since lockdown — a slate roof to match the house, and, if we could manage it, no second trip to planning.

The design response

We couldn't. The 2010 ridge of 3,401 mm was too low to be useful, and the 3,800 mm he wanted stood in sight of the village church, so it went back in. CADW then said the new position sat inside the scheduled ancient monument while the 2010 one hadn't. Rather than apply for scheduled monument consent we moved the building forward onto the line of the old approval, which also cleared the tree root protection zones. It was approved in January. The slab was the other problem: already down and the wrong way round, so we met Guy's builder on site to mark the extension it needed before we cut any oak.

The build

What we did

  • The planning application and approval
  • The green oak frame, cut and raised
  • Brick plinth walls under the frame
  • Cedar feather-edge cladding, with oak barge and fascia
  • Natural slate roof

What the client's own builder did

  • The concrete slab and groundworks

What wasn't part of the job

  • Doors to the open bays
  • Drainage, driveway and electrics

The outcome

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