DESIGN.
PLAN.
MANAGE.
Practical, considered residential design and project management for extensions, renovations and new builds across Cambridge and Cambridgeshire.
Design that works. From concept to completion.
At OneOFF Design, we combine residential design expertise with more than 25 years of construction experience.
We help homeowners turn ideas into well-designed, practical and buildable projects — from the initial concept and planning process through to technical drawings and project management.
Based in Cambridge, working across Cambridgeshire and the wider UK.
Whether you are planning a house extension, renovation or new build, we provide a straightforward service designed around your project.
Designing and managing residential projects across Cambridge and the surrounding areas.
Residential Design
Thoughtful residential design for extensions, renovations, alterations and new homes. We develop your ideas into practical designs that make the most of your property, space and budget.
Planning Applications
We prepare and coordinate the information required for your planning application. From initial design through to submission, we help make the planning process as straightforward as possible.
Technical & CAD Drawings
Detailed CAD drawings provide the information required to take your project from design into construction. Our drawings are developed with buildability and practical construction in mind.
3D Visualisation
See how your proposed project could look before construction begins. 3D visualisation helps you understand the space, finishes and overall design before making important decisions.
Building Regulations
We help coordinate the technical information required for Building Regulations and work with the relevant professionals where required.
Project Management
For clients who want greater control and less stress, we manage the project through the construction stage. Our practical construction experience helps keep the project moving towards completion.
25+ years of design and construction experience.
25+ Years of Design & Construction Experience
We don't just design buildings. With more than 25 years of construction experience, we understand how projects are actually built. Our designs are developed with practical construction, materials, costs and buildability in mind.
One point of contact
From the initial idea through to planning, technical design and project management, OneOFF can coordinate the key stages of your project.
Practical design
Good design needs to work in the real world. We focus on creating spaces that look good, function well and can actually be built.
Personal service
OneOFF is an independent design and project management company, giving you direct access to the person responsible for your project.
A straightforward process from first conversation to completion.
Discover
We start by understanding your property, your ideas, your requirements and your budget.
Design
We develop the concept into a practical residential design that works for you and your property.
Plan
Where required, we prepare and coordinate planning and technical information.
Manage
If you choose our project management service, we help coordinate the construction process through to completion.
Built to last. Designed to impress.
Rear Extension
Cambridge
New Build Residence
Cambridgeshire
Contemporary Interior
CambridgeResidential design in Cambridge & Cambridgeshire.
OneOFF Design works with homeowners in Cambridge and the surrounding areas. We understand that every property is different, from traditional Cambridge homes and period properties to modern houses and new developments. Our local focus allows us to provide a personal service while working closely with homeowners, builders and other professionals involved in the project.
House Extensions
Rear, side and other residential alterations tailored to your property.
Home Renovations
Transform an existing property with a considered redesign of layout and space.
New Builds
From initial concept through to detailed design for your new home project.
Garden Buildings
Design and planning for garden offices, studios and additional spaces.
Thinking about your next project?
Whether you're planning an extension, renovation or new build, we'd be happy to discuss your ideas. Let's talk about your project and see how OneOFF Design can help.