Roundhouse Works by Paddy Dillon, Reed Watts Architects and Allies and Morrison

Acoustic external doors
Clark Door
Steel-hinged acoustic doors
Studio doors

The size of the volumes was dictated by the functional brief – for the large circus studio in particular, which needed a 7m-high internal clearance for aerial and trapeze work. At the same time, the overall height of the building was restricted by planners to maintain views of the circular roof on the main building.
Matt Watts, director, Reed Watts Architects

Sliding entrance door
DORMA ST-Flex Green
Main entrance


Selected products



Project data
Start on site June 2021
June 2023
Gross internal floor area
Construction cost £4.5 million
Construction cost per m2 £4,634
Paddy Dillon with Reed Watts Architects and Allies and Morrison
Executive architect Reed Watts Architects
Client The Roundhouse Trust
Structural engineer Momentum Engineering
M&E consultant Ingleton Wood
QS Bristow Consulting
Project manager Bristow Consulting
Principal designer Goddard Consulting
Approved building inspector Assent
Main contractor Borras Construction
Fire consultant The Fire Surgery
Acoustic consultant Charcoalblue
Access consultant Attitude is Everything
CAD software used
Annual CO2 emissions 18.5 kgCO2/m2
Predicted design Life
60 years

Roundhouse Works is a new creative centre for young people at the heart of the Roundhouse’s creative campus in Camden, London. It houses a bespoke large music studio, a triple-height studio for circus and performance, a large multi-use studio for workshops and a dedicated podcast studio to support future generations of artists and creative entrepreneurs.

The cross-laminated timber structure was a key choice that helped address a number of these. It sequesters over 250 tonnes of CO2 from the atmosphere, while also allowing us to avoid the need for secondary finishes in many spaces. Thus the CLT walls and floor slabs are exposed in many spaces and sized to achieve fire compartmentation. Plasterboard is used to achieve acoustic separation or to enhance fire separation.


Rubber flooring
Artigo Multifloor ND Uni, colour: U36 Silk
Co-working space, breakout space and circulation spaces



Glazed doors
Jansen Janisol thermally broken door
External glazed doors

The recycled railway sleepers were sourced from the UK railway network. Unlike many species, the very durable Australian jarrah didn’t need to be treated with bitumen when used on the railway. This would have otherwise precluded us from using it. We used as much of each sleeper as possible. The external faces are the primary cladding material and the internal sections are used as vertical fins and panels over the curtain wall glazing.

Curtain walling
AA100 thermally broken curtain walling, colour: RAL 7006
Glazing (ground and first floors)

Cross-laminated timber
Stora Enso timber frame
Walls, floors and roof structure

Materials were selected to respond to the overall project brief, whether that was to reduce embodied CO2, reduce load on the foundations, to answer aesthetic, cost or durability requirements or to maintain acoustic and fire separation between spaces.

Skyway multi-pane flat glass roof window

Located on the raised ‘service yard’ behind the original venue, the new building sits in the former railway yard that served the train shed. This location, the industrial heritage, adjacent shipping containers and its ‘working’ nature inspired the simple form of the building. The studios are housed in two metal cubes, while the ancillary spaces and co-working office space, which hug the edge of the site, are clad in reclaimed railway sleepers.

The use of timber continues inside the building, with plywood furniture paired with rubber flooring,
Matt Watts, director, Reed Watts Architects

Timber sleepers
Railway Sleepers
Jarrah Relays, 250 x 125mm
Ground and first floor cladding