SPECIALIST SOLUTIONS FOR BESPOKE SPACES

PREDESIGNED STUDIO ANNEX OPTIONS

NEW FOR 2026!

W H O

A R E

W E ?

At Phase Design and Build, we specialise in transforming outdoor spaces into bespoke garden studio annexes tailored to your lifestyle.

Led by skilled Carpenter-Builder Luke Bunkum and Chartered Architectural Technologist Matthew Selleck MCIAT, we offer a complete design-and-build service that blends craftsmanship with technical expertise. Luke ensures every structure is built to the highest standard using quality materials, while Matt’s knowledge of design, planning, and building regulations guarantees each studio is both visually striking and fully compliant.

Whether you’re dreaming of a home office, hobby room, guest suite, cinema space, or a soundproof recording studio via our soundcore construction system, we create functional, beautiful environments designed around your needs. Our collaborative approach means we work with you from the first sketch to the final finish, ensuring your studio annex becomes a true extension of your home.

Let’s bring your ideas to life and build a space that’s uniquely yours.

what we do

OUR SERVICES

Predesigned

Our predesigned studio annexes (garden rooms) offer quick, cost-effective solutions with professionally developed layouts. These ready-made designs ensure reliable quality, reduced planning time, and a smooth, efficient installation process.

Prefabricated (modular) – Nationwide

Factory-built modular annexes delivered nationwide for fast, precise installation. Modules connect to a low impact ground screw foundation, and provide consistent build quality, and reduced on-site construction time.

Prefabricated (panels) – Nationwide

Panel-based systems crafted off-site and shipped nationwide. Ideal for tight-access sites, offering quick structure assembly and clean installation with excellent efficiency. Intertwines with our build pack options for step by step guidance for your own installation, each panel section is possible to man handle without the requirement of cranes, with all further calculated loose material supplied.

On-Site Installations (within radius)

Comprehensive on-site construction for customers within our radius. Ideal for custom requirements, complex access, or specialist foundations, ensuring a fully tailored, high-quality build at your property.

Bespoke Design and Build

A fully customised service offering complete design freedom. We create unique garden rooms tailored to your lifestyle, property, and specification.

Soundproof Garden Studios- Soundcore.

Expertly engineered soundproof rooms using acoustic materials and specialist provisions. Ideal for music studios, therapy spaces, or offices, delivering exceptional noise reduction and privacy. Delivered as our panel supply with loose material and build pack to ensure installation as per design spec for your peace of mind.

TALK TO US!

SOUNDPROOF GARDEN STUDIOS

SOUNDPROOF STUDIO ANNEX SYSTEM FOR MUSICIANS LOOKING TO MAKE SOME NOISE!

DESIGNED AND BUILT BY MUSICIANS - FOR MUSICIANS (ESPECIALLY DRUMMERS!)

DOUBLE DOOR AND MULTI LAYERED GLASS PANE WINDOW SYSTEM

AVAILABLE AS A FULLY DELIVERED SYSTEM NATIONWIDE WITH ASSOCIATED BUILD PACK [STEP BY STEP GUIDE] SO THAT YOU CAN ENSURE ALL MATERIAL IS TO OUR DETAILED DESIGN SPEC!

TIMBER FRAME ROOM WITHIN A ROOM CONSTRUCTION

WE REVISIT OUR FIRST SOUNDPROOF STUDIO BUILD FROM DECEMBER 2023

The natural timber cladding has weathered down a lot in the year and half since our first garden build- Matts own drum studio in his garden!

<< Check out the soundproofing results

CONTACT US

Email: office@phasedandb.com

Tel: 01579 560124

Unit 18 Trelawney Business Park, Callington, Cornwall, PL17 7SD