Case Study – Green Acres

Dalbury Lees, Derbyshire


The Green Acres development involved the construction of a detached Oak timber framed manor house with basement and open plan space within the roof. Adjacent to the house was a separate swimming pool building and timber-frame carport / garage and office.

We were appointed by the Project Manager to act as structural engineers on this project to represent the client’s interests in terms of reviewing specialists design and detail and to carry out any additional design as required to ensure the project ran smoothly. To advise generally on all issues of a structural nature and be on call to provide structural advise to the main contractor during the build.


  • To determine a foundation solution for the buildings
  • To review and advise upon various bespoke basement construction options
  • To design the foundation interfaces between the specialist basement installation and the remainder of the building
  • To design and detail the ground floor structure above the basement
  • To consider the interfaces between the Oak frame and the remainder of the build
  • To liaise with the specialist Oak frame designers and installers
  • To carry out supplementary design and detail for the roof structures of the manor house and pool
  • To design and detail the Oak timber frame and the traditional mortise and tenon joints to the carport / garage
  • To attend site meetings as required


  • Stepped trench fill foundations
  • Specialist basement and tanking installation
  • Structural steel and reinforced concrete transfer slabs above the basement
  • Concealed pinned connections between timber framing and support plinths
  • Traditional roof structure design in Oak and Glulam timbers