Wiltshire
Rammed Earth House
A modern farmhouse by Tuckey Design Studio, its walls rammed from clay dug on site — winner of a 2026 RIBA National Award and a Wallpaper* Design Award.
Project Manager & Cost Consultant
Trusted counsel for exceptional houses – from first estimate to final account.
Wiltshire & Cotswold Offices
As chartered quantity surveyors, project managers and design consultants, we bring together exceptional designers, artisans and craftspeople for private clients with ambitious plans — representing their interests at every stage, with the close, personal attention of a family practice.
The Practice
Est.
1945
Founded by two Royal Engineers, Dadson and Butler remains entirely family owned, led today by James and Christopher Workman. Eight decades on, the practice is defined by the same qualities: rigour, integrity and an instinct for detail.
Our work spans classical country houses, contemporary homes, and the gardens, outbuildings and estates around them. Long-standing relationships with leading designers, engineers and contractors allow us to protect our clients’ interests while helping them realise their vision — on time, within budget and to the highest standard.
Purpose
To bring ambitious projects to life with clarity, control and care, from first sketch to completion.
Approach
Directors personally involved in every commission. Modern rigour, with old-fashioned courtesy and respect.
Values
Integrity, continuity, discretion and transparency — family values, held since 1945.
Services
The whole commission,
under one roof.
01
Quantity Surveying
02
Cost Planning
03
Project Management
04
Contract Administration
05
Contract Negotiation
06
Client Representation
07
Building Surveying
08
Design Consultancy
09
Audit & VAT Responsibilities
Selected Work
Remarkable homes, carefully crafted.
A small selection. Much of our work is private, and we are glad to discuss the wider portfolio in confidence.
Discuss a project
Hampton Court
Stud House
Restoration of a Grade II listed early eighteenth-century house in Home Park, Hampton Court, once the residence of the Master of the Horse.
Project Manager & Cost Consultant
Cranborne Chase
Ferne Park
Award-winning new wings, housing a library and dining room, for Quinlan Terry’s Palladian house.
Project Manager & Cost Consultant
Dorset
Dorset Country House
A country house by Ben Pentreath, drawn from the local vernacular of honeyed stone, steep gables and leaded lights.
Project Manager & Cost ConsultantOur Ethos
“Details make perfection, and perfection is not a detail.”
Contact
Begin with a conversation
Wiltshire Office
11 Roses Lane
Amesbury, Salisbury
Wiltshire SP4 7FH
Cotswold Office
5 The Apple Store, Far Peak
Northleach, Cheltenham
Gloucestershire GL54 3JL