Founded in 2013 by James Gavey, we are a full service, Chartered architectural practice based in Guernsey, offering complete design, planning and building solutions.

We have the proven ability to design and deliver bespoke extensions, conversions and new build projects. Working collaboratively with our team of specialist consultants allows us to form clear workable solutions, using modern materials and fabrication methods which meet today’s requirements and future needs. Our energy, enthusiasm and commitment is evident from concept through to completion ensuring we deliver a high level of service. This has led to future projects by way of personal recommendations.


Our qualified, focused and friendly team prides itself on being responsive and committed to delivering outstanding results.

We forge personal relationships to understand our clients’ needs and ensuring designs exceed expectations. We explore, test and co-create practical designs against current Planning Policy and carefully consider the technical building standards at an early stage, to ensure approvals are gained first time.

James GaveyMCIAT


James entered the construction industry to study Architectural Technology in 2002 and graduated from London South Bank University with First Class Honours in 2010. James established JG Architecture in early 2013 and has built up comprehensive Planning experience for new build dwellings, listed building upgrades, residential development, commercial office fit-outs and retail projects locally, as well as design schemes for leisure facilities in Europe.

A Chartered Architectural Technologist, James guides the JGA team ensuring highly focused design and building solutions, retains clear pre-construction phases for clients and maintains an honest and responsive service across the board.

Outside of JGA, James loves leisure time with his young family, is passionate about golf or catching up on sport generally and also takes a keen interest in interior design trends and new building material developments.

Miles PengelleyMCIAT

Architectural Practice Manager

Miles joined JG Architecture in 2016 and soon completed a BSc in Architectural Technology graduating through London South Bank University with First Class Honours. Miles brings meticulous planning to our design and construction methods and has great skill in realising a client brief, often exceeding expectations. Having entered the construction industry in 2008, Miles has focused experience with domestic extensions, conversions and residential projects. Each of these traits contributed to Miles’ selection as The Construction Industries ‘Aspiring Star’ at the 2018 Construction Awards.

In his downtime, Miles enjoys spending time eating out with his wife, friends and family. As well as getting stuck into DIY around the house, he is also a keen sportsman, captaining Sylvans football Priaulx team. In fact, Miles will turn his hand to most sports with a competitive approach, no matter how social the sport.

Dan TibbsACIAT

Senior Architectural Technician

Dan joined the JGA team in July 2017 following the completion of his A-Levels at the Guernsey Grammar School & Sixth Form Centre. From previous experience at a local architectural practice and working at the Planning Department, Dan has gained some valuable knowledge for a career in architecture. Dan has completed the Construction & The Built Environment apprentice scheme locally and is now looking to complete a degree in Architectural Technology.

As well as his love for 3D design in the studio, Dan enjoys spending his time with his family and friends, watching football and sport in general and keeping his fitness levels up in the gym.

Monique Michel

Architectural Technician/Interior Designer

Monique joined JGA in February 2021 as an Architectural Technician/Interior Designer. Since 2018, she has completed her apprenticeship in Construction & The Built Environment and a B.A (Hons) in Interior Design through Staffordshire University.

Monique is a talented team player and brings valuable experience and skills to our creative studio, having worked on many domestic and commercial projects locally. She possesses an eye for detail, interior design focus, critical thinking and creative flair.

Outside of work Monique enjoys resin art, watercolor painting, baking sweet treats and getting out to do some cycling.

Lewis Oliver

Lewis Oliver

Architectural Technician / 3D Rendering Designer

Lewis joined JGA in April 2022 as an Architectural Technician / 3D Rendering Designer. With a Higher National Diploma at Anglia Ruskin University and also previous experience at a local surveying & architecture practice, Lewis brings a wealth of experience within commercial and domestic projects to the JGA studio. In addition, Lewis has a keen interest in 3D visualisations which JGA are keen to develop further within his new role.

Outside of work Lewis enjoys spending time with family & friends. Through the summer months, Lewis is a key player for the Jazz Hats Cricket Club. He also enjoys gaming, watching football, cricket, F1, well any sport that’s on really!

Martin Savident

Architectural Technician

Martin joined JGA in November 2020 as a Trainee Architectural Technician. He left Grammar School Sixth Form in 2018 after completing his A-levels and went on to study ‘Construction & The Built Environment’ at the Guernsey College of Further Eduction.

Outside of work, Martin enjoys playing football and is a key player for the Guernsey Rovers AC Priaulx football team. He also enjoys running, boxing and generally keeping fit.

Adam Allder

Architectural Technician

Adam brings valuable insight having worked on sites for high-net-worth clients in the south of England. We’ve been very impressed with his creative, collaboration, problem-solving, and communication skills.

Outside of work, Adam likes spending time with his friends and family, gaming, watching and playing football, and more recently he has got into F1.

Nadine Gavey

Operations Director

Nadine joined JGA in March 2021 as Operations Director. After gaining her master’s degree in Human Resources Management, she spent over ten years in human resources, working for various commercial, government and financial companies both on island and in London with brands such as Harvey Nichols, Sure and PWC. Following this, Nadine spent six years in recruitment at both senior management and board level.

As Operations Director, Nadine will be working on business strategy, office management, HR and marketing, as well as administration support but most importantly – welcoming industry colleagues and our wonderful clients into the studio!


Trainee Barkitectural Technician

Locally trained, predominantly in demolition for the past 10 weeks, Jude is the ultimutt hire, having made a drastic improvement in this pawticular field. Unleashing a wealth of site experience to JGA, especially in roofing, he has certainly hit the ground bouncing establishing a very colLABorative approach with the design team and they are certainly having a ball working together.

Although yet to retrieve his full qualifications, Jude will develop his skills on ArchiLAB and will be sure to paws on welcoming clients and colleagues into the studio.