About

About the architectural team

Sean Macmillan


First Name: Sean

Last Name: Macmillan 

Title: Director and Architect 

Started Practice: 01.01.2014 


Description: Sean is a fully qualified Chartered RIBA architect with 25+ years' experience in both large and small projects, from concept to completion. Sean has worked as project architect on a wide range of projects, ranging from modern contemporary through to historical and listed buildings. 

Amy Boudewijn MIP, MAAT 


Title: Ms

First Name: Amy

Last Name: Boudewijn

Title: Office Business Manager


Description: Amy has a BA (Hons) in Business and ensures the smooth running of the office, manages the day-to-day activities within the business and liaises with clients, the design team and stakeholders such as planning officers. Amy is also an AAT licensed accountant.

John Sutton


Title: Mr

First Name: John

Last Name: Sutton

Title: Structural Engineer

External Consultant - Elmstone Engineering Ltd 


Description: John is a structural engineer with 25+ years' construction experience. He has worked in many structural engineering consultancies in the commercial, retail and residential sectors, from refurbishment work on historic buildings to new build, multi-storey office developments.

Adrian Henretty


First Name: Adrian

Last Name: Henretty

Title: Architectural Technologist

External Consultant - Elmstone Design LLP


Description: Adrian joined as a partner in February 2014, bringing with him specialisms in building regulations, project management and health and safety. Adrian previously worked in a multi-disciplinary consultancy where he gained a degree in architectural technology. He has over 16 years’ experience in residential, commercial and education projects.

The team


Sean Macmillan Architecture work closely with other experienced consultants and practices to resource all projects. These include specialist planning consultants, CDM specialists, and party wall, building and quantity surveyors.


 We are affiliated with Elmstone Engineering Ltd and Elmstone Design LLP, who provide structural engineering and CDM Health and Safety services for both residential and commercial schemes.

"I had a very helpful call the next day. We arranged a home based provisional meeting and then agreed a full survey with plans. The initial one hour consultation was free which is very good value for no money! To date we have made good progress and feel very optimistic about our project." 
Peter, Shanklin.

Years of expertise in architectural design

Sean and the team are always happy to liaise with new clients to discuss their ideas for a new build or renovation project.

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