Designing into evidence, not a blank sheet
Concept design done without site evidence is concept design done twice. Flood zone 3, an Article 4 direction, a tree preservation order, a listed neighbour, a Green Belt boundary cutting the rear garden. Any one of these can force a redesign after the client has already seen sketches. The appraisal front-loads the constraints map: planning designations, heritage context, flood and ground risk, access, policy position and recent decisions on comparable sites nearby.
You walk into the first design workshop knowing where the developable envelope sits, which constraints are absolute and which are negotiable through design response, and what the local planning authority has approved and refused in the last three years. The NPPF (December 2024) sets the national policy backdrop, and your appraisal translates it into site-specific signals.
Why architects use this pack
- Protect design time. Spot the dealbreakers before you scope the fee.
- Qualify client sites. Tell a hopeful client honestly whether the site has a route to consent.
- Support fee proposals. Anchor your scope and risk allowance in documented constraints.
- Brief consultants. Hand the planner, the arboriculturist and the flood consultant a shared evidence base.
- Avoid avoidable planning dead ends. Pick up the Article 4, the conservation area, the protected view, before they pick you up.
What the appraisal delivers for Stage 0 / Stage 1 briefing
Mapped against the RIBA Plan of Work:
- Stage 0 (Strategic Definition). Site context, planning designations, headline constraints, comparable consents, a clear go/no-go signal for the client conversation.
- Stage 1 (Preparation and Briefing). Detailed constraints register, policy context including local plan position and emerging policy, heritage and environmental risk, indicative development potential, recommended next-step studies and the consultants you will need.
The pack is a desktop appraisal. It briefs your design and your fee. It does not replace a full arboricultural survey, ground investigation or heritage statement, and we say so on the cover. For the full pack scope and constraint coverage, see what is included in our 48-hour desktop pack.
Four packs, four architect decision moments
- Early client enquiry. Lightweight screening to qualify the site before you spend an hour on it.
- Pre-fee feasibility. Constraints, policy and precedent in enough depth to scope a credible fee proposal.
- Pre-application strategy. Evidence to shape the design narrative and the pre-app submission.
- Design-team briefing. A shared baseline so every consultant starts from the same site facts.
See a sample report to judge the depth before you commission.
How architects commission the pack
- Send the address or a site boundary.
- Choose the pack that matches your decision moment.
- Receive the report inside 48 hours.
- Use it in your client meeting, your fee proposal, your pre-app, or your consultant briefing.
More detail on scope and turnaround sits on the site screening page, and you can browse sample outputs to see the format.
Brief your design from evidence
Stop designing into uncertainty. Brief Stage 0 and Stage 1 from a documented constraints picture, protect your fee, and give your client a straight answer about the site in front of them. Reports start at £199 and arrive within 48 hours.