Checking a surveyor's competence for a structural report

Before you pay anyone for a structural report to support a planning application, check three things: that the title they use is a protected one you can verify on a public register, that their experience covers the specific thing you are asking about, and that they carry professional indemnity insurance at a level that means something. Structural engineer qualifications planning reports rely on are not decorative. If the report has to support a basement, a chimney removal or an underpinned party wall, the author's competence is what the council and your insurer will look at.

Anyone can call themselves a structural consultant. The protected titles are narrower than the marketing.

Chartered engineer titles and what each covers

The Engineering Council keeps the register of Chartered Engineers, Incorporated Engineers and Engineering Technicians, and the titles are protected. The professional institutions assess and nominate, and the register is where you check the result.

Membership of the Institution of Structural Engineers at chartered grade involves a long written examination in structural design, which is why councils and warranty providers treat it as the reference point for anything structurally ambitious. The Institution of Civil Engineers route covers structures too, and plenty of excellent structural engineers hold it.

What matters more than the choice between those two is whether the individual signing the report holds the registration, rather than the practice having someone who does.

Building surveyor against structural engineer

These are different jobs and people buy the wrong one regularly.

A chartered building surveyor inspects the condition of a building, identifies defects, assesses damp, movement and decay, and reports on repairs. A chartered structural engineer calculates loads and designs or verifies structure.

For a planning submission, the distinction matters in a predictable way. If the question is "is this building sound enough to justify retaining rather than demolishing it", a building surveyor's condition report may be the right document, and a Structural Survey in that sense supports a conversion or a heritage case. If the question is "can this wall carry the new opening" or "will the neighbouring house move when we dig", you need an engineer with calculations.

Councils asking for structural evidence in support of demolition in a conservation area, or in support of a barn conversion under Class Q, usually want both: a condition assessment and a structural appraisal of whether the existing frame can take the conversion.

Competence for basements, retention and underpinning

Basement work is where competence stops being a formality. A Basement Impact Assessment in a London borough is read by a technical reviewer who checks the hydrogeology, the ground movement prediction and the temporary works philosophy, and an author without demonstrable basement experience gets found out.

Ask directly for the following, and ask for it in writing:

• Three comparable projects with the ground conditions, the retention system and the depth, in the same sort of setting as yours.
• Who will produce the ground movement assessment and what method they use.
• Whether the practice will also design the temporary works, or whether that sits with the contractor.
• Whether they have worked under the specific borough's basement policy before, where one applies.

Underpinning and party wall retention bring in a second regime. The Party Wall etc. Act 1996 is separate from planning and runs on its own notices and timescales, and the party wall surveyor is a distinct appointment. Do not assume your engineer is acting as party wall surveyor unless the appointment says so.

Where a Geotechnical Assessment is needed, the ground investigation design and interpretation is a specialism in its own right, usually held by a geotechnical engineer or an engineering geologist rather than a general structural practice.

What a report should state about inspection limits

A short limitations section is the mark of a careful author, not a cautious one. Read it first. It should say what was inspected, what was not, and what the conclusions depend on.

Specifically it should state the date and weather at the time of inspection, which rooms and roof spaces were accessible, whether floors were lifted or finishes removed, whether the inspection was visual only, whether any testing was carried out, and what assumptions have been made about foundations and concealed structure.

A report that concludes a building is structurally sound without saying that no opening up took place is not giving you what you paid for. Nor is one that relies on an assumed foundation depth without saying so.

Where opening up or trial pits are needed to reach a conclusion, expect the engineer to say that and to price it separately. The cost of two trial pits is small against the cost of a refusal or a redesign.

Who liaises with building control and when

Planning and the Building Regulations are separate consents. The structural detail is approved by building control under the Building Regulations 2010, not by the planning department, and a planning report does not discharge any building regulations duty.

Sequence it in that order: the structural appraisal informs the planning submission as far as feasibility and retention are concerned, then the detailed design and calculations go to building control. On higher-risk buildings the Building Safety Act 2022 gateways add their own steps, and the competence requirements there are formal rather than advisory.

Ask who will issue the calculations and under whose registration they are checked. On small domestic jobs, the answer is often that the structural calculations will be produced later by someone else, which is fine as long as everyone knows.

Verifying membership and insurance before instruction

Do this before you sign anything, and it takes about fifteen minutes.

1. Search the Engineering Council register for the individual's name and check the registration category and status.
2. Search the relevant institution's own member search for the grade and the practice.
3. Ask for a copy of the professional indemnity certificate, and check the limit, the expiry date and whether it is on an each-claim or aggregate basis.
4. Check that the cover continues after the appointment ends, because professional indemnity is written on a claims-made basis.
5. Ask who signs the report and confirm that person holds the registration.
6. Read the appointment for any limitation on liability, and understand what a cap means in practice.

Registers and insurance are the easy part. The harder judgement is whether the person has done your kind of job, and the way to test that is to ask for the three comparable projects and then read one of those reports. The approach to reading a consultant's background is set out in reading a consultant CV for real competence, and the register checks themselves in checking a professional institute register.

If you have an AI-drafted structural document and need a qualified author to review and sign it, the professional directory is the route to a reviewer.

This is general guidance, not legal advice; check the position with your local planning authority or a qualified professional before relying on it. A structural report is a report type where councils usually expect a suitably qualified author, and professional review is strongly advised. PlanScope provides AI-assisted draft reports for planning applications. Reports should be reviewed before submission. We do not guarantee planning approval.