Basement excavation in progress

Spa Excavation and Mansion House Works

Construction continues to progress at Rayners Penn, with several key stages of the development moving forward on schedule. Recent activity has focused on the new spa basement, the Mansion House extension and essential structural works to protect the historic building.

A wider shot of the basement excavations at Rayners Penn

Spa Basement Progress

Excavation of the new spa basement is now complete, marking an important milestone in the development of the estate’s wellness facilities.

The basement will accommodate changing rooms, a gym, treatment rooms and plant rooms serving the ground-floor swimming pool.

With drainage runs now completed, preparations are underway for the reinforced concrete floor slab. This will be poured in four phases, beginning in the coming weeks.

A crane has also been erected to service the spa basement construction and surrounding areas, helping to improve efficiency and minimise unnecessary delays as work progresses.

Piling work at Rayners Penn

Piling Works at the Mansion House

Piling has also commenced for the extension to the Mansion House, with works now underway for four weeks.

Once piling is complete, a capping beam will be constructed in preparation for excavation, which is currently scheduled to begin in late December.

An external shot of the Rayners Penn site during the restoration

Protecting the Mansion House’s Historic Structure

Alongside the new construction, essential conservation work is being undertaken to address structural concerns within the original Mansion House.

At the rear of the building, previous repair works carried out several decades ago have contributed to the elevation sagging and pulling away from the main structure. This now requires urgent intervention and rebuilding to prevent further deterioration.

A bowing ceiling revealed during the restoration at Rayners Penn

The ongoing strip-out of the Mansion House has also revealed additional structural issues. These will be explored in greater detail in a forthcoming article.

Throughout this process, the project team continues to work closely with Buckinghamshire Council to ensure that key heritage features are carefully preserved for future generations.

Protecting original features at Rayners Penn

Managing Construction Through the Winter Months

As the project moves into the winter months, wetter weather is expected to bring additional challenges, particularly in managing construction traffic and maintaining the cleanliness of surrounding roads.

Size Group have introduced a range of measures to minimise disruption, including carefully managed traffic schedules, traffic marshals, vehicle cleaning, wheel washing and regular daily road sweeping.

Every effort will be made to keep the surrounding roads clean and safe throughout this period, although some additional disruption may be unavoidable, particularly during periods of heavy rain. The patience and understanding of local residents is greatly appreciated.

As construction progresses alongside the careful restoration of the Mansion House, these works represent further steps towards securing the long-term future of the Rayners Penn estate.

A crane on the Rayners Penn site