Feasibility & Concept Design Pack
Pack 1 of 4 · RIBA Stages 0–2
Before you invest in a project, you need to know what is possible, what it will cost and how long it will take. Our Feasibility & Concept Design Pack gives you exactly that: a clear understanding of the potential of your property or site, the planning constraints, a choice of design options and a realistic budget, before you commit to the next stage.
It is the right starting point for house extensions, loft conversions, refurbishments, conversions and new builds, whether you are a homeowner, a landlord or a developer.
- Explore the potential of your home, property or site
- Confirm feasibility against planning history, constraints and policy
- Understand the full budget from day one: construction costs and fees
Book your free initial consultation
What the Feasibility & Concept Design Pack includes
- Brief and design meeting: we listen to your goals, needs and budget
- Measured survey and site photographs, arranged by us
- Planning history of the property and neighbouring sites
- Site constraints: conservation area, listed building, Article 4 directions, flood risk, trees
- Planning policy review and planning strategy: permitted development, Lawful Development Certificate or full planning application
- Concept design: three design options, or as many as you prefer
- Indicative budget: construction costs plus professional and statutory fees
- Timeline and checklist of the next steps
How it works
- Free initial consultation: a 30-minute call to understand your project and send you a tailored fee proposal.
- Survey and research: we arrange the measured survey and research the planning history, constraints and policy that apply to your property.
- Design options: we present the concept options, with the pros, cons and indicative costs of each one, and refine the option you choose.
- Your feasibility pack: you receive the drawings, the planning strategy, the budget and the timeline, ready to move on to the Design & Planning Pack.
Full budget visibility from the first stage
From the Feasibility & Concept Design Pack onwards, you receive an indicative budget that covers not only the construction costs but also the professional and statutory fees your project will need. As the design develops, the estimate becomes progressively more detailed and accurate, so you stay in control of your budget at every stage and can make decisions with the full picture in front of you.
Frequently Asked Questions
What is a feasibility study for a house extension?
A feasibility study tells you what you can build on your property, whether it is likely to need planning permission, what the main constraints are and what it may cost, before you spend money on detailed design.
Which RIBA stages does this pack cover?
RIBA Stage 0 (Strategic Definition), Stage 1 (Preparation and Briefing) and Stage 2 (Concept Design) of the RIBA Plan of Work.
How many design options will I receive?
We normally prepare three concept options, but we can prepare more or fewer depending on your project and preferences.
Will I know the cost of my project at this stage?
Yes. You receive an indicative budget covering construction costs and professional and statutory fees. It becomes more detailed and accurate at each following stage.
Do I need planning permission for my project?
It depends on the property and the works. Some extensions and loft conversions are permitted development, while properties in conservation areas or listed buildings usually need permission or consent. The feasibility pack sets out the right route for your project.
