Planning Guide
What does a planning site appraisal actually tell you?
A planning site appraisal assesses whether a development idea is worth pursuing, which constraints matter and what to investigate before committing further money.
Professional insight
A useful appraisal converts evidence into a recommendation.
The review should identify the planning principle, material opportunities and risks, likely evidence requirements and the most proportionate next step. It should also be explicit about uncertainty and where specialist investigation is still needed.
Scope
A strong appraisal should clarify
Whether the development principle appears realistic
The constraints most likely to affect layout, value or timing
Which assumptions need testing before further commitment
What specialist surveys or technical work may be justified
The recommended planning route and sequence
Whether to proceed, renegotiate, investigate further or step away
Reading the report
What should a planning appraisal report contain?
Begin with the decision: are you buying land, testing an infill plot, considering a replacement dwelling or preparing an application? The report should state the site and proposal assessed, the information reviewed and any assumptions. A conclusion without those boundaries is difficult to use.
The planning assessment should connect the relevant development plan, planning history and site context to your proposal. It should distinguish an identified constraint from a matter that still needs investigation. For each significant issue, ask what it could change: the principle of development, layout, amount of development, evidence needed or sequence of work.
The conclusion should explain the recommendation and its limits. A list of constraints is useful background, but the commercial question is which findings should change your next decision.
Before an application
How does a site appraisal inform a planning application?
An appraisal can help decide whether to develop the design, seek pre-application advice or commission a targeted survey. It can also identify a concern that should be resolved before spending on a full application. The appropriate sequence depends on the site and the proposal.
It is not the application itself. The drawings, statements and specialist reports needed for an eventual submission must be scoped separately. Nor should an initial appraisal be treated as the council’s agreement that permission will be granted.
Using the findings
Turn each constraint into a practical next step.
For example, an apparent access constraint may call for a highways assessment before fixing a layout. A flood-risk issue may require specialist advice before assuming that residential development is acceptable. An uncertain settlement-policy position may change the planning strategy before design work proceeds.
These are illustrative situations, not accounts of completed Tenon projects. The useful question is whether resolving the uncertainty could change your decision to proceed, renegotiate, redesign or stop. An initial review should identify those questions without claiming that the specialist work has already been completed.
Scope and limitations
Is this a structural survey or a financial development appraisal?
No. A planning appraisal concerns the planning and development position. It does not establish a building’s structural condition, certify legal access or ownership, provide a formal valuation, or replace a detailed financial feasibility assessment. Those disciplines may be needed alongside it.
Before commissioning a review, confirm whether it is desk-based, whether a site visit is included, what information will be used and what output you will receive. An initial planning conclusion should not be treated as confirmation that every technical or ownership issue has been resolved.
Commissioning a review
What should you send, and how much does it cost?
Start with the site address or location, your relationship to it, what you hope to develop and any planning references. Explain the decision you need to make and any timing constraint. Send a short summary first; supporting plans and documents can follow once the scope is understood.
Tenon’s Development Potential Review starts from £474 including VAT (£395 + VAT). We confirm the appropriate scope and fee before work begins. Use the service page to review the offer, or send an enquiry about your site.
Further reading
Source guidance
Chelmsford City Council: site appraisal and planning context
Local requirements and the scope of an appraisal depend on the site and proposed development.
Recommended next step