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Giovanni Mastromartino Architect

new Home

Experience and Passion

I have been privileged to work on many amazing projects. I will assist you from the concept ideas and planning application throughout the building process, taking care of everything you may need. Whether is a large or small, I will take care of your project as it was my own.

home extensions

Attention to Detail

My love for details and my passion for the overall view of the project will drive me on the path of creating your dreaming space to live, whatever your project or requirements may be.

GMArchitect's Aim

GMArchitect is a small office designing residential spaces aiming to fullfil the client’s dreams. My services involve Architecture and Interior design, so I can take care of your living place from the structure to the last finishes. You will enjoy the exciting and vibrant side of building your new home, extension or little conversion.

Designed and Constructed

designs and Construction
Home Extensions in London
Building services in Kent
Home Extensions in London
Architectural Interior Design


I pride myself on the quality of work I produce and make sure my customers are always satisfied. Here are what my customers
have to say about me and my work.

Elizabeth A.

The process of converting our garage to habitable space was made simple with GM Architect. Right from the first day to completion GM architect was with us. They attended to...

Lee A.

I stumbled across Giovanni details whilst searching for an architect to help with the plans on my listed property, and I’m very glad I found him, the process was unbelievably...

Ade O.

An exemplary service from start to finish! Giovanni was very professional, attentive and nothing short of a delight to deal with. My application process was very smooth. Thank you for...