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Round Tower

The Round Tower is a Grade II Listed folly, which had been reduced to ruin by years of neglect and fire. Located on the crest of a hill overlooking Siddington Village, the exposed site is visually integral to the setting of this listed structure.

The-Round-Tower-by-De-Matos-Ryan-03-749x1000 The Round Tower / De Matos Ryan

© Edmund Sumner

As such the design approach maintains the open relationship with the surrounding agricultural landscape by developing a discreet and substantial underground extension to the tower. This underground extension provides the main open plan living spaces and is lit by both a central open sunken courtyard and a lateral ‘landscape scoop’ concealing the new swimming pool and associated sun terraces from public view.

The-Round-Tower-by-De-Matos-Ryan-04-759x567 The Round Tower / De Matos Ryan

© Edmund Sumner

The-Round-Tower-by-De-Matos-Ryan-02-749x1000 The Round Tower / De Matos Ryan

© Edmund Sumner

The-Round-Tower-by-De-Matos-Ryan-05-759x568 The Round Tower / De Matos Ryan

© Edmund Sumner

The listed tower remains clearly the dominant structure, providing the front door to the 4 bedroom family house and the means of vertical circulation. It is also the visual focus of the main sunken courtyard garden. The restored tower provides additional accommodation and a roof terrace for the enjoyment of the panoramic views of the surrounding landscape.

The-Round-Tower-by-De-Matos-Ryan-08-759x496 The Round Tower / De Matos Ryan

© Edmund Sumner

The-Round-Tower-by-De-Matos-Ryan-07-759x562 The Round Tower / De Matos Ryan

© Edmund Sumner

A new detached building adjacent to the entrance to the site, provides garaging and an additional guest studio.

The-Round-Tower-by-De-Matos-Ryan-01-759x530 The Round Tower / De Matos Ryan

© Edmund Sumner

Project Data:

Project name: The Round Tower
Location: Glouchestershire, England, United Kingdom
Coordinates: n/a

  • Type By Characteristic: Tower House, Green & Sustainable House
  • Type By Site: Countryside / Suburb House
  • Type By Size: Medium House – (201 sqm – 450 sqm)
  • Type By Materials: Stone House

Status: Completed
Project Area: approx 350 sqm
Completion Date/Year: 2009


  • 2012 – Royal Institute of British Architects (RIBA) Awards – RIBA Regional Award – Shortlist
  • 2011 – International Property Award – Commended
  • 2010 – Roses Design Awards – Winner

The people:

Client / Owner / Developer: Private
Architects: De Matos Ryan – 99-100 Turnmill Street, London EC1M 5QP, United Kingdom
Structural Engineer: Price & Myers
Main Contractor: GL50 Properties
Concrete Contractor: Stallard Construction
Text Description: © Courtesy of De Matos Ryan
Images: © Edmund Sumner

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The Round Tower / De Matos Ryan
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