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Business Details
16 Years
experience
Your Trusted Architectural Partner in Northampton
Established in 2010, Sketchproposal is a dynamic architectural practice dedicated to delivering tailored design solutions for residential, commercial, and heritage projects. Our approach combines creativity with technical expertise, ensuring designs are both aesthetically pleasing and functionally efficient. With a focus on collaboration, we work closely with clients to understand their unique needs, aspirations, and budgetary constraints. Our director, Jonathon Williams, brings over two decades of experience from London-based practices, specializing in projects ranging from new builds to historic building conservation. We prioritize precision in planning submissions, detailed technical drawings, and seamless project coordination.

Our commitment to sustainability is evident in our use of modern construction methods and eco-friendly materials. Operating across Northamptonshire, Buckinghamshire, and surrounding areas, we serve diverse sectors including healthcare, education, and listed buildings. Our proven track record includes approvals for complex change-of-use projects and innovative extensions in conservation areas. Backed by professional indemnity insurance and memberships in leading industry bodies, we ensure reliability and adherence to the highest standards. Contact us to transform your architectural vision into reality with personalized, expert guidance.
Services
Architectural Design Planning Submissions Technical Drawings Project Coordination Heritage Buildings Healthcare Projects Educational Schemes Listed Building Consent Extensions Commercial Projects
Details
  • Year established: 2010
Highlights and features
  • We offer 15+ years of experience in architectural design and planning.
  • Our team specializes in heritage building conservation and modern construction methods.
  • We provide tailored design solutions aligned with client budgets and aspirations.
  • Our project coordination ensures seamless execution from concept to completion.
  • We hold professional accreditations and insurance for reliability and standards.
Associations and certifications
  • Architects Registration Board
  • Royal Institute of British Architects
  • Association of Consultant Architects
Services
Architectural Design
We create bespoke architectural designs tailored to client needs, blending creativity with technical precision. Our process includes initial concept development, 3D modeling, and material selection to ensure functional and aesthetically pleasing outcomes. Specializing in residential and commercial projects, we deliver innovative solutions that maximize space and sustainability.
Planning Submissions
Our team prepares and submits detailed planning applications to secure approvals for new builds, extensions, and change-of-use projects. We navigate local authority requirements, ensuring compliance with regulations while addressing potential objections. This service includes site analysis, feasibility studies, and liaison with planning officers to streamline the approval process.
Technical Drawings
We produce accurate technical drawings essential for construction, including floor plans, elevations, and section details. These drawings ensure clarity for contractors and adherence to building regulations. Our focus on precision minimizes errors during construction, facilitating smooth project execution for residential and commercial developments.
Heritage Buildings
Specializing in historic buildings, we provide conservation and restoration services that respect original architecture while meeting modern standards. Our expertise includes listed building consent applications, traditional material sourcing, and repair techniques. We balance preservation with functional upgrades for properties in conservation areas and heritage sites.
Project Coordination
We oversee all project phases, coordinating between clients, contractors, and consultants to ensure timely delivery. This includes budget management, scheduling, and quality control. Our proactive approach addresses challenges early, ensuring projects stay on track while maintaining compliance with regulatory and design standards.
People
Jonathon Williams
Architect & Director
Jonathon Williams, a Chartered Member of RIBA, brings 25 years of experience in architectural design and project management. He specializes in heritage conservation and sustainable construction, having worked on diverse projects from residential extensions to healthcare facilities. His expertise ensures client visions are realized with precision and innovation.
Questions
What architectural services do you specialize in?
We specialize in residential, commercial, and heritage projects, including planning submissions, technical drawings, and project coordination. Our expertise extends to listed building consent and sustainable design solutions.
How do you handle planning permission applications?
We prepare detailed planning applications, liaise with local authorities, and address potential objections to secure approvals. Our experience ensures compliance with regulations while optimizing project viability.
Can you work on historic buildings?
Yes, we specialize in heritage conservation, including repairs, extensions, and change-of-use projects for listed buildings. We use traditional techniques and materials to preserve architectural integrity.
What areas do you serve?
We operate across Northamptonshire, Buckinghamshire, Milton Keynes, Bedford, and surrounding regions, delivering tailored architectural solutions for local and regional clients.
Are you accredited by professional bodies?
We are registered with the Architects Registration Board, Chartered Members of RIBA, and members of the Association of Consultant Architects, ensuring adherence to industry standards.
How do you ensure project timelines are met?
Through proactive project coordination, we manage schedules, budgets, and contractor collaboration to maintain progress and address challenges promptly, ensuring timely completion.