


Premier architectural, construction and interior design company in Surrey
When it comes to architectural design and build services, Happy Building is the name you can trust. With our HQ located in the heart of Sutton, Surrey, we’ve been serving clients in Surrey and South London since 2012.
From initial conceptual design to planning, precise engineering, and impeccable construction delivery, we are committed to providing an unparalleled service, boasting over 200 successful planning applications and 30 completed construction projects in the past 12 months alone.
Our dedicated team consists of expert architectural designers, interior designers, structural engineers, project managers, and skilled construction teams who leave no stone unturned in delivering exceptional results.
What We Do

Design
Unlock your vision with the help of our expert architectural design services tailored specifically to your needs.
Our in-house RIBA accredited architects and designers will discuss, advise, design and deliver two creative concepts based on balancing excitement, practicality and cost-effectiveness.

Planning
Streamline your planning journey by trusting our expert team to take your project from design to construction.
Our remarkable record of 98% approved planning applications will put your mind at ease. Leave the necessary submissions to us, and we will provide up to two revisions to the planning proposal if required.

Construction
Experience peace of mind by letting us deliver your construction project with expertise and care.
We pride ourselves on achieving harmony between the initial design concept and the final project execution, meticulously attending to every detail until the culmination of our collaborative journey.
Discover our areas of expertise
Geo Wilkins was easy to work with and came up with some really good ideas! We were both very confident working with him, he was patient and kept us well informed, and we plan to work with his colleagues in Happy Building on to the next stage of our project. We will also be recommending Geo and Happy Building to friends, family and neighbours.
Architectural Design for Garage Conversion in Croydon - Pauline, April 2023
"Very good architectural service. Very helpful and informative and was great at listening to my needs and taking my views on board."
Architectural Design for Loft Conversion in Carshalton - Theresa, April 2023
"We have had a lovely experience with Geo looking after our project and designing our extension. Highly recommend the firm but especially Geo. He is patient and will make sure to help deliver so your dreams come true."
Architectural & Structural Design for Two Storey Side Extension in Epsom - Mariangela, April 2023
Contact us for a free consultation with one of our designers
