

Meet Our Director & Principal Planner
Tom Cheffers founded Rubix Planning to bring together expert town planning and fully integrated architectural services. An RTPI-accredited consultant, he leads a multi-disciplinary team delivering effective, high-quality planning solutions throughout London and the South East. Under his direction, Rubix navigates even the most complex planning challenges with precision—combining deep policy expertise with in-house design capabilities to give clients clear, practical advice and creative, well-crafted proposals from initial concept through to final consent.

Integrated Architectural Services
We offer a fully in-house architectural design capability, from detailed CAD drawings to high-quality CGI visualisations. This enables us to deliver planning submissions that are visually compelling and technically precise, ensuring your application stands out from the outset.
Chartered Planning Expertise
Our RTPI-accredited planners have a deep and current understanding of local and national policy. We excel at unlocking complex sites, resolving policy challenges, and navigating the regulatory landscape to achieve successful outcomes for our clients.


Expert Planning
Architectural Excellence
Intelligent Analysis
We set ourselves apart by bringing together proven planning expertise, integrated architectural services, and the considered use of advanced analytical tools, including AI. Our reputation is built on nearly two decades of success across London and the South East - guiding clients through the most challenging planning scenarios with confidence, creativity, and clarity.
Chartered Town Planners
England's planning landscape is ever-evolving, and its complexity can be a major hurdle for those unfamiliar with the system.
Whether you're a homeowner planning an extension, a business looking to expand, or a developer initiating a residential project, understanding the ins and outs of the planning system is essential.
We make it our mission to simplify the planning process.
Rubix Planning specialise in turning the intricate web of UK planning into a straightforward, manageable process.
Our team of experts is well-versed in the nuances of local and national planning legislation and guidance. We have a proven track record of guiding projects to successful outcomes.
We combine our expertise with our in-house design team. This enables us to integrate the previously separate practices of planning and architecture.
Our experts are available to discuss your project with you today.
Expert Guidance: Our consultants, led by our Principal Chartered Planner, have a detailed understanding of the UK planning system and a forensic approach to achieving compliance. They know what works and what doesn't, saving you time and resources.
Strategic Planning: We don't just help you submit an application; we help you build a robust strategy that maximizes your chances of success.
End-to-End Support & Partnership: We're with you. Every step of the way. Where your project requires it, we also partner with other professionals such as engineers, ecologists, arboricultural consultants, solicitors, estate agents and many more. We work together to ensure you have the necessary expertise for your project.
Contact us today, and let's plan your next project.


Why Choose Rubix Planning
Experience
Our Chartered Town Planners and Architectural Team expertly manage every stage of the planning process. With a proven track record across London and the South East, we ensure your project meets all statutory criteria, guiding you through complex planning submissions with precision and professionalism.
Integration
Rubix Planning offers a comprehensive range of planning and architectural services, preparing all necessary drawings and supporting statements to accompany your application. Our streamlined approach saves you time and effort, delivering tailored solutions that meet your unique project requirements.
Trust
Trust is central to everything we do. With clear, step-by-step guidance from initial engagement, we keep you informed and involved throughout the process. Our transparent approach and consistent results give you confidence, even with the most challenging planning applications.
Partnership
We partner with trusted professionals, including engineers, ecologists, and arboricultural consultants, to meet all technical and statutory requirements. These collaborations ensure your project benefits from expert input, with a unified strategy tailored to its specific needs for guaranteed success.

Full Planning Applications
Rubix delivers a comprehensive planning application service for residential, commercial, and mixed-use developments. We assess your site’s potential, manage pre-application engagement with planning officers, coordinate technical reports, and prepare all necessary documentation in-house. Our planners and architects work together to present your proposal in the best possible light – identifying risks early, responding proactively to feedback, and navigating complex policy to achieve swift, commercially-sound approvals across London and the South East.
Planning Appeals & Enforcement Appeals
Don’t let a planning refusal stop your project. Rubix specialises in overturning refusals and addressing enforcement action through persuasive, well-argued appeals. We analyse every detail of your case, research policy and precedent, and prepare robust appeal statements tailored to your circumstances. Whether you’re appealing a householder application or a major development, our experience and strategic insight maximise your chance of success – restoring momentum to your project when it matters most.
Heritage & Conservation Services
When your project involves a listed building or conservation area, specialist knowledge is essential. Rubix delivers expert advice for alterations, extensions, and new developments affecting heritage assets. We prepare detailed heritage statements, liaise with conservation officers, and balance historic character with modern needs. Our integrated planning and design service ensures your proposal meets all legal and policy requirements - protecting what’s special, while delivering practical solutions for your property’s future.
Change of Use
Changing the use of a property can unlock new value – but also brings unique planning challenges. Rubix has extensive experience with HMO conversions, commercial-to-residential schemes, and agricultural-to-residential projects. We assess policy compliance, manage technical submissions, and address issues such as transport, amenity, and local character. Our team guides you from feasibility through to approval, using clear strategy and strong evidence to secure permissions for even the most sensitive change of use applications.
Householder Applications & Consents
Planning a home extension, loft conversion, or new outbuilding? Rubix expertly guides homeowners through every stage – from early design concepts and pre-application strategy, right through to full submission and decision. We prepare robust, policy-compliant drawings and advise on permitted development, anticipating any issues with local authorities. Our integrated planning and design approach means you can realise your vision with fewer delays, less stress, and the highest chance of first-time approval. Every successful application starts with clear, persuasive visuals.
Drawings & CGI Visualisation
Rubix provides in-house architectural drawings, technical plans, and high-impact CGI to showcase your proposal. Our design-led approach ensures compliance with planning policy and helps local authorities – and neighbours – understand your vision. From initial sketches to detailed construction drawings, we give your project the professional edge needed for a smooth approval process and strong support from decision-makers.
Intelligent, Data-Led Strategy
We complement our professional judgement and experience with a suite of advanced analytical tools, including AI. These technologies help us identify opportunities, anticipate risks, and support our strategic recommendations - but always as an aid to our expert input, not a substitute for it.


Homeowner Services
Our services for homeowners include extensions and alterations, outbuildings, garages, and more.
Where required this includes applications in Conservation Areas, and Listed Building Consent.
All services include our expert review of your property and project, and relevant planning policies to best ensure your project is well-designed and planning-compliant