Hertfordshire House

The Brief

We were engaged to work on the complete refurbishment and revitalisation of an 18th century country house set within a 520 acre estate. The original square plan building had been altered and extended numerous times over its three hundred year life and the design approach was to refurbish and further extend the historic alterations rather than stripping the building back to its original form.

There are extensive out buildings and works included the conversion and extension of barns to provide accommodation for staff, visitors, the estate manager, and an entertainment space. Todd Longstaffe-Gowan were commissioned to complete significant new landscaping, extending to 2 acres, around the house which includes Yorkstone terraces, a large kitchen garden, hawthorn maze, new pool and pool room, orchard, tennis court, ponds and extensive Ha Ha.






David Kohn Architects


Not Disclosed


  • Private Residences


  • Project Management
  • Cost Consultancy
  • Health & Safety (CDM)

The Challenge

The property has Grade II listed status and is set within the Chilterns Area of Outstanding Natural Beauty.
Our understanding of the nature of listed buildings and the challenges faced in refurbishing and adapting them meant we were able to identify risks in advance and subsequently set prudent allowances in the budget and programme to deal with them.

High levels of craftsmanship were specified throughout, and our knowledge of and expertise in engaging specialist contractors came to the fore when dealing with numerous bespoke aspects of the build, such as the curved timber conservatory with custom-made geometric patterned roof.



The Outcome

The completed project has completely transformed the property, uniting once disparate parts of the house and seamlessly blending historic parts with new additions, such as a new oval arrival room with bespoke encaustic-tiled flooring. The interior design strategy, inspired by Elizabethan calendar houses, uses striking colour choices whilst the ‘outdoor rooms’ of the landscaped gardens are breathtaking.

Livestock was reintroduced to nearby fields and trees planted to create new framed views of a revitalised farming landscape.






Estate acreage
Property dates back to
Size of drawing room
0 ft²

Other Projects We’ve Completed Include

Dartmouth Park House

Private Residence, Oxfordshire

Fitzroy Square