About


Who are we & what we do


Castellum is a high-end residential main contractor and developer. We build exceptional homes for decerning clients, architects, and consultants. We operate throughout the Home Counties, West and Central London, and the Cotswolds.


What our clients say


“From the bottom of my heart, you guys deserve this. The quality at … is impeccable. Kudos to you and the team. The biggest award is that I am entirely satisfied!”

Private client, Surrey, on hearing that his home had won an award.

“Some of you may know that I work with contractors, from the very largest down, and I can honestly say, if given a choice, Castellum are now first on the list. If you are building something, give them a call.”

Private client, Cotswolds.

“The Main Contractor by which all others should be judged. Nothing ever too difficult – team players.”

J. Hunter, Founder of Tenhurst.


 CONSTRUCTION | DESIGN | MANAGEMENT | LUXURY | SATISFACTION | HONESTY | SERVICE | QUALITY

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