Business Details
20 Years
experience
Your Trusted Architectural Design Partner in Berkshire
Established in 2006, Orange Key is a hybrid architectural design and structural engineering practice based in Berkshire. Our team combines over 30 years of industry experience across architectural design, technical delivery, and engineering excellence. We specialise in creating bespoke residential and commercial projects nationwide, from contemporary new builds to sensitive renovations within conservation areas. Our integrated approach ensures every design balances aesthetic appeal, cost efficiency, and functional living requirements.With expertise in navigating planning regulations and building control processes, we deliver tailored solutions that enhance clients' lifestyles while maintaining rigorous technical standards. Our portfolio demonstrates a commitment to sustainable design principles and innovative spatial solutions, supported by a collaborative team of chartered engineers, architectural designers, and technical specialists.
Services
Architectural Design
Building Regulations
Loft Conversions
Extensions
Residential Projects
Details
- Year established: 2006
Highlights and features
- We combine 30+ years of architectural and engineering expertise
- Our integrated design approach optimises structural and aesthetic outcomes
- Specialists in navigating complex planning and building regulations
- Proven track record with heritage and conservation area projects
- Dedicated team of chartered engineers and architectural professionals
What people say
Absolute pleasure to work with
Impeccable drawings
Highly recommend
Seamlessly integrated contemporary space
Excellent conversion expertise
Services
Architectural Design
Our architectural design service creates bespoke solutions balancing aesthetics, functionality, and technical requirements. We specialise in new builds, renovations, and heritage-sensitive projects. Our integrated approach combines creative vision with engineering precision to deliver spaces that enhance living experiences while meeting planning and building regulations.
Building Regulations
We prepare comprehensive building regulation packages ensuring compliance with current standards. Our in-house engineering expertise streamlines approvals through coordinated documentation. This integrated approach reduces errors, accelerates timelines, and guarantees structural integrity while maintaining design intent across residential and commercial developments.
Loft Conversions
Transform unused roof space into functional living areas with our specialist loft conversion service. We maximise natural light and spatial efficiency while ensuring regulatory compliance. Our designs incorporate structural considerations and energy efficiency measures, creating valuable additional space without compromising existing property integrity.
House Extensions
We design and deliver tailored house extensions enhancing property functionality and value. Our solutions integrate seamlessly with existing structures while meeting modern living requirements. From contemporary glazed extensions to traditional brickwork additions, each project combines aesthetic appeal with technical precision and planning regulation compliance.
Residential Projects
Our residential projects span new builds, renovations, and adaptive reuse schemes. We create bespoke living spaces responding to site context and client needs. Services include space planning, material selection, and technical detailing, with specialist expertise in conservation area developments and energy-efficient home transformations.
People
Graham Leftwich
Director
Graham leads architectural design initiatives with 20+ years' experience in residential and commercial developments. His expertise spans concept design through to project completion, ensuring creative vision aligns with technical requirements and client objectives.
Matt Neal
Director
Matt oversees project delivery with specialist knowledge in complex renovations and heritage projects. He manages multidisciplinary teams to achieve design excellence while maintaining strict budget and timeline controls across diverse architectural schemes.
Tim Avient
Chartered Engineer
Tim provides structural engineering expertise, ensuring technical integrity across all projects. With Chartered Engineer status and M.I.Struct.E membership, he integrates engineering solutions with architectural vision to optimise building performance and regulatory compliance.
Julie Swain
Marketing & Admin
Julie manages client communications and studio operations. Her organisational expertise ensures smooth project coordination, while her marketing insights help showcase the practice's portfolio and maintain professional industry engagement.
Wendy Aldridge
Accounts Manager
Wendy oversees financial operations with meticulous attention to project budgeting and resource allocation. Her financial expertise supports transparent client billing processes and ensures the practice's operational sustainability across multiple concurrent projects.
Questions
What architectural services do you specialise in?
We specialise in residential and commercial architectural design, building regulations, loft conversions, extensions, and heritage-sensitive renovations across Berkshire and surrounding areas.
How do you approach planning applications?
We handle planning submissions with expertise in permitted development rights and full applications, ensuring compliance with local authority requirements while maximising design potential.
What building regulation services do you offer?
We prepare complete building regulation packages with integrated engineering calculations, ensuring compliance through coordinated documentation and site-specific technical solutions.
Can you work with listed buildings or conservation areas?
Yes, we have extensive experience delivering sensitive renovations and extensions within conservation areas while maintaining historical integrity and meeting modern living standards.
What project sizes do you handle?
We work on projects ranging from small residential extensions to large commercial developments, tailoring our approach to each scheme's specific requirements and budget.
Reviews (2)
Penelope Brudenell-Bruce
Nov 06, 2022
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I used Orange Key for a conversion from commercial to residential project and they were excellent. Would not hesitate to recommend them
Jo Hutchings
Nov 02, 2022
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We approached Orange Key to design a 4 bedroom new-build house for us. From start to finish the team were friendly, straightforward and professional, listening to our ideas and translating them into the perfect house design for us (and the plot). Planning has now been approved, our house is yet to be built. We wouldn't hesitate in recommending Orange Key for any building design project
