Sam Gillies Designs

Featured Projects

Burnham Rear Extension
Burnham, Bucks
Planning application and building control full plans applications consented to provide a rear extension with new kitchen, utility and downstairs WC spaces.
Marlow Loft Conversion
Marlow, Bucks
Planning permission, building control full plans and build-over agreements secured to provide both rear single storey and loft extensions. 3D modelling was key in configuring the loft access stair whilst maximising floorspace.
Maidenhead Side Extension
Maidenhead, Berks
Side extension and structural alterations to provide extra ground floor area. Feasibility and costing including CGI imagery and animation work to communicate design intent.
Maidenhead Side-Infill Extension
Maidenhead, Berks
Planning application to secure consent for a side-infill extension (of 7m2) with rooflight to unlock valuable space to result in a large open-plan kitchen-dining room.
Cox Green Roof Conversion
Cox Green, Berks
Roof conversion and structural alterations to an existing extension, creating a large, open plan kitchen-dining area with glass roof lanterns. Planning consent secured.
Marlow Rear Extension
Marlow, Bucks
Planning permission, building control full plans and build-over agreements secured to provide both rear single storey and loft extensions. 3D modelling was key in configuring the loft access stair whilst maximising floorspace.

About the Studio

Sam Gillies has over 10 years' experience as an ARB registered, chartered architect. With a wide and varied range of experience, Sam has designed and delivered a large number of schemes of varying sizes, scales and sector disciplines – including residential, commercial fit out, life sciences, education, healthcare, catering, motorsport, conferencing (and others).

As an experienced architect based in Maidenhead, Sam has operated within several sectors and established track record of securing successful planning applications in the Southeast, and particularly within Berkshire and Buckinghamshire.

His mission is to build an enduring reputation built on trust, execution, and exceptional design, and focuses on three key principles:

01 / Briefing & Collaboration

We listen: understanding the client’s priorities is at the forefront of our approach. We aim to be proactive and responsive to ensure clients are kept in the loop with active communication throughout the process.

02 / Budget Integration

A beautiful design is only successful if it can be built within your budget parameters. To eliminate financial guesswork, we can work with professional cost estimators at an early stage to ensure designs align with realistic projected construction costs from day one.

03 / Spatial & Daylight Optimization

Exceptional residential architecture isn't about adding square footage for the sake of it; it is about maximizing the spatial potential and natural light within your home's footprint. We focus on the quality rather than quantity of space.

Sam Gillies - Chartered Architect

Core Architectural Services

Our services extend (but are not limited) to:

Residential and commercial sector work
Surveying existing conditions and conversion to CAD environment
Planning drawings, design and access statements, flood risk statements and lodging planning applications
Building control drawings and applications
CDM and BSA Principal Designer roles
Interior design
Project management
Feasibility studies and collaboration with QS for early outline costing
Tender review and recommendations
Sun studies
Computer generated imagery and animations
3D modelling and (for larger schemes) BIM execution and implementation
Party Wall Agreements
Thames Water build-over agreements
Planning Application Drawing Packs
from £1,200*
Building Control Drawing Packs
from £1,800*
*Starting prices are indicative of a standard, single-storey, single-aspect ground floor extension. Final quotations are bespoke and project-specific to account for scale, structural complexity, and site constraints. Fees cover architectural design packs only and strictly exclude local authority application fees, structural engineering calculations, measured site surveys, and third-party consultant costs.

Get In Touch

Have an upcoming residential renovation or commercial project in mind? Contact the studio directly to schedule an initial feasibility consultation or discuss your layout parameters.

Telephone
07902 031689
Get in touch
sam@samgilliesdesigns.co.uk