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Swift UnlimitedExplore what’s possible
Bespoke Living AnnexesAward-Winning Designs15 Year WarrantyOver 18 years’ experience5 Star ReviewsFully Bespoke or Straight to SiteFriendly, Flexible and Capable ServiceComplete turnkey service — Design, Planning, BuildingYour Life, Your Choice, Your HomeSafe, Secure and Trusted
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Annexe project · JML Garden Rooms

Garden annexe in Scotland

A family in the Cairngorms looked at extending, then looked at the garden instead — and put up a 33sqm longhouse for their mother, watertight inside a fortnight.


Published 13 February 2019 · Updated 30 September 2026 · 2 minute read · Written by The Garden Room & Annexe Guide

Long house style self contained granny annexe
JML Garden Rooms  33sqm, in the Cairngorms National Park

JML Garden Rooms were commissioned by a family in Scotland to create a new home for their mother, allowing her to live independently while staying close by.

The family had initially explored the option of adding an extension to their house but quickly realised that this would be both expensive and disruptive.

They then turned to their garden and recognised that a self-contained annexe could be the perfect solution. After researching online, they chose JML Garden Rooms, having been impressed from the very first enquiry.

At a glance

  • Size: 33sqm — a living room under a vaulted ceiling, a galley kitchen, a bedroom and a shower room.
  • Why not an extension: the family costed one first and found it both expensive and disruptive.
  • Planning: full permission, granted well inside the council’s eight-week window; materials chosen to sit with the local architecture of the Cairngorms National Park.
  • How it was built: off-site, in JML’s Auchterarder workshop, then delivered as components — SIPs core, breathable membrane, AluClad doors and windows, wind- and watertight in under two weeks.
  • What JML handled: everything — a full turnkey service including groundworks and the connections to services.
  • The look: the building and the layout both borrow from the traditional longhouse.

Part of our one-bedroom annexe guide →

Visit the Garden Annexes website
A self-contained annexe
in your garden
No planning permission
required in most cases
Kitchen, bathroom & bedroom
— a home from day one
Fully fitted & insulated,
built in weeks
Based in Brighton & Hove,
building across England
Explore annexes →
The brief

33sqm self-contained garden home

Following a visit to the JML Garden Rooms workshop in Auchterarder, where they saw how the annexes are built, the family decided to order a 33sqm self-contained home.

Full planning permission was obtained for the project. The experienced JML team worked closely with the family to design a home and select materials that would complement the local architectural style of the Cairngorms National Park. Approval was granted well within the council’s standard 8-week timeframe.

The exterior materials were chosen to suit the local venacular
The materials  chosen to suit the local architecture
The build

Off-site construction for quick installation

JML Garden Rooms specialises in off-site construction, allowing them to manufacture the building in their workshop before delivering the components for a swift on-site installation.

JML provided a full turnkey service, managing not only the supply of the building but also handling all groundworks and connections to utilities.

Once the groundwork was completed, the highly insulated SIPs (structural insulated panels) core structure was assembled and wrapped in a breathable membrane. With the AluClad doors and windows fitted, the building was quickly made wind- and watertight. The team reached this stage in under two weeks.

Inside

A light-filled modern home

As seen in the images, the result is a modern, light-filled home.

The accommodation includes a spacious living room with a vaulted ceiling, a galley-style kitchen, a bedroom, and a shower room.

The design of the building and the internal layout are reminiscent of traditional longhouses.

The vaulted ceiling in the living area offers wow value
The living room  under a vaulted ceiling
Doors on two elevations create a naturally light room
Doors on two elevations
Bedroom in the granny annexe
The bedroom
The annexe has a modern shower room
The shower room
Planning something similar?

Learn more about JML Garden Rooms

To learn more about creating a bespoke, self-contained living annexe, contact the JML Garden Rooms team on 01764 663 668 or visit the JML Garden Rooms website.

Visit JML Garden Rooms More JML Garden Rooms projects
More projects like this One-bedroom annexes 25–35 sqm annexes
Read the guides Garden annexes: the complete guide What an annexe costs The Caravan Act route Granny pods

Published 13 February 2019 · Photographs courtesy of JML Garden Rooms.

Visit the Garden Spaces website
Visit the Timeless Garden Rooms website
Visit the Garden2Office website
A self-contained annexe
in your garden
No planning permission
required in most cases
Kitchen, bathroom & bedroom
— a home from day one
Fully fitted & insulated,
built in weeks
Based in Brighton & Hove,
building across England
Explore annexes →
Visit the Modern Garden Offices website

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Visit the Modern Garden Rooms website
A self-contained annexe
in your garden
No planning permission
required in most cases
Kitchen, bathroom & bedroom
— a home from day one
Fully fitted & insulated,
built in weeks
Based in Brighton & Hove,
building across England
Explore annexes →
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