Architects in Cornwall

House Extensions & Residential Architects in Cornwall

Notion Architects is a Plymouth-based architectural practice specialising in residential extensions and alterations. We work with homeowners across Cornwall, providing a complete service from initial design and planning through to technical drawings and construction.

Planning • Design • Building Regulations • Construction

Based in Plymouth | Serving Cornwall & the South West

Google review 5 star rating!

Start your project

Book A Free Call

To play, press and hold the enter key. To stop, release the enter key.

Traditional Cottage with Modern Extension (1)

Golden Hour Extension amidst Lush Garden

Looking for an architect in Cornwall?

Whether you're planning a rear extension in Truro, renovating a property in St Ives or altering a family home in Padstow, we can help take your project from initial ideas through to construction.

Our service can include:

Initial feasibility and design
Planning applications
Permitted development advice
Building Regulations
Detailed construction drawings
Structural engineer coordination
Contractor procurement
Construction support

Designing homes across North Devon

Traditional Cottage with Modern Extension (1).png

A single-storey side extension to a Georgian farmhouse in North Cornwall, designed to sensitively balance traditional and contemporary elements. Large sliding glass doors open the space to expansive views over surrounding farmland. The design respects the historic character of the farmhouse while introducing clean, modern detailing.

Project: Farmhouse extension
Location: Holsworthy, North Cornwall

98% planning approval success rate – See How We Achieve It

Click here

Why Choose Notion Architects for Your Cornwall Project?

Although we're based in Plymouth, we work across the wider South West and regularly undertake residential projects outside Plymouth. Our location allows us to provide a personal, responsive service while working with clients across Devon and Cornwall.

ARCHITECTS SPECIALISING IN HOUSE EXTENSIONS, AND RESIDENTIAL DESIGN

Collaborative Approach: At Notion Architects, we firmly believe that successful projects emerge from a strong partnership between clients and architects. We work closely with you, listening to your aspirations and understanding your unique requirements.

Comprehensive Services: From initial concept to the final stages of construction, we provide end-to-end architectural services. With our extensive knowledge and experience, we deliver projects of exceptional quality, on time and within budget.

NOTION - "A CONCEPTION OF OR BELIEF ABOUT SOMETHING".

To play, press and hold the enter key. To stop, release the enter key.

RESIDENTIAL

Listed buildings
Conservation projects
One off houses
Contemporary extensions
Apartments

COMMERCIAL

Offices

Retail parks
Masterplanning
Drive-thru restaurants

TESTIMONIALS

Highly recommended for all size of projects.

Chris Hocking

Unitbuild received a great service from Simon at Notion Architects. The quality of the work was excellent and it was delivered efficiently. We will return to Simon for future projects.

James Lock

Notion Architects are great to work with. Simon is extremely professional, responsive, and deliver high-quality work in a timely manner. I was impressed with the attention to detail and how quick they respond to any changes needed.