Which Trusted Trader

Personal And Professional Architectural Design

Based in Sevenoaks, Kent, we offer a personal and professional architectural design service, specialising in home development, such as loft conversions, house extensions, garage conversions and remodelling internal spaces.

We’re one of only three architectural design practices in Kent and the only one in Sevenoaks to be awarded Which? Trusted Trader status following a rigorous assessment. 

We work throughout Sevenoaks, Tonbridge, Tunbridge Wells and the surrounding areas and know the area and the planning officers.  This means we understand the local environment, conservation issues and building regulations well, ensuring a smooth planning process for you.  This is reflected in our high success rate (over 90%) in gaining planning permission for our designs.

With over 20 years in the industry, we have a wealth of experience in design, construction and project management and can recommend a trusted group of talented people to help you bring your dream home to life from builders, engineers to party wall surveyor.

Our team is happy to answer any questions you have about improving your home or even visit potential homes with you to assess how they can be changed, and can be with you every step of the way from initial ideas through planning to your finished home.

Sevenoaks Plans provides a full architectural design service and our Planning Package offers an extremely competitive, fixed fee, VAT free package, which allows you to see the full cost of the entire planning process with no hidden extras

Meet the team

Our talented team at Sevenoaks Plans have a wide range of experience to support the creation of your dream home.

  • David Dennis

David Dennis


David Graduated from Bournemouth University after studying Engineering and Project Management. David worked in Bournemouth for twelve months and then moved to Australia where he spent his time working for an architects in Melbourne.

David then moved back to London where he freelanced as project manager for MACE where he ran a large project for a refurbishment for Barclays and ran a team of technicians, site managers and design managers as well as meeting with Barclays to ensure the projects ran extremely well. He then moved to an architects in London where he ran a nationwide rollout of a highly respected retail company, who were redesigning and refurbishing the stores.

Following completion of the rollout, David freelanced in London and the south east for various architects, construction companies and engineers, before eventually deciding to set up a practice within Sevenoaks, a town and community he holds closely to his heart and knows extremely well.

  • Helga Visalli

Helga Visalli


Helga graduated in Architecture from the University of Reggio Calabria (Italy) in 2007. She immediately started her career collaborating, with an office of architecture and urban planning in Italy – a collaboration that lasted seven years.

During this period, she worked on the preservation, restoration and rehabilitation of historical buildings; as well as drafting and planning regulations for the development of a number of municipal structural plans.

At the same time, she worked for private clients on projects including the renovation of houses, interior design and the concept layout of shops.

Her creativity, passion for design and a continuing search to develop her skills, have brought her to the UK.  She now works with Sevenoaks Plans, sharing her extensive experience and knowledge to develop ideas that reflect the needs of our different clients.

  • Isabella Coletti

Isabella Coletti


Isabella moved to the UK after graduating with honours, achieving a master’s degree in Architectural Conservation at the Faculty of Architecture, IUAV in Venice 2012.

She started her career working for some of the most recognised world leaders in Interior design. Through her different employments she gained extensive workplace and residential experience. Isabella has had the opportunity to work on high end projects in the UK and Ireland acquiring technical understanding of bespoke products and creative space planning.

With a keen eye for beautiful pieces of furniture, she developed a professional approach consulting clients to determine requirements, preferences and best use of space. 

  • Ana Moset

Ana Moset

Architectural Technician

Ana is an Architectural Technician, who began her studies in Spain.  As a follower of fashion and design, her curiosity and desire to continue to expand her knowledge and experience led her to London.

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