Choose an arboricultural consultant on accreditation, not price: an Arboricultural Association Registered Consultant or an Institute of Chartered Foresters chartered arboriculturist, carrying professional indemnity insurance and genuine BS5837 development experience, produces the report least likely to be challenged. There is no legal licence to be an arboriculturist, so the credentials — and how well the author knows your council's requirements — are the whole game.
Whether you are preparing a BS5837 tree survey for planning, a mortgage report or a subsidence investigation, the value of the document depends entirely on who wrote it. A thin report from an unaccredited author is the most common false economy in this field, and the delay it triggers dwarfs any saving. This is the vetting checklist.
First: there is no statutory licence
It surprises people, but there is no legal licence to practise as an arboriculturist and no statutory register you must appear on. Anyone can call themselves an "arborist" or "tree consultant" tomorrow with no qualification whatsoever.
What BS5837:2012 asks is that the work be done by someone "suitably qualified and experienced." Crucially, BS5837 is itself only a British Standard — a set of recommendations, not law. It becomes effectively mandatory because local planning authorities (LPAs) adopt it in their validation lists and impose it through planning conditions. That means the LPA, and specifically its tree officer, is your real audience: they decide how much weight a report carries based on the author's credentials. The burden is on you to vet, because the title alone guarantees nothing.
The baseline: "suitably qualified and experienced"
The widely-accepted working definition of a suitably qualified arboriculturist is someone who meets both of these:
- Holds a degree or equivalent — for example an N/SVQ Level 5, Technician's Certificate or Professional Diploma in Arboriculture or a related subject; and
- Is a practising arboriculturist with at least three years of relevant experience in the last five, demonstrating practical understanding of trees in relation to construction.
Treat that as the floor, not the target. For anything going in front of a tree officer, an insurer or a lender, you want more than the minimum.
The credentials that add weight
These are the accreditations that make a report robust, in rough order of standing for consultancy work:
| Credential | What it signals | Best suited to |
|---|---|---|
| AA Registered Consultant (AARC) | Top UK consultancy accreditation: NVQ Level 5+, professional/fellow AA membership, passing an expert-panel assessment of real work | Planning-critical BS5837 work; least likely to be queried |
| ICF Chartered Arboriculturist (MICFor) | Chartered status via the Institute of Chartered Foresters; professional standing and CPD discipline | Full development and expert-witness work |
| Professional Tree Inspection (LANTRA) | A recognised tree-inspection certificate | Condition and risk surveys more than BS5837 design work — useful for a tree risk assessment |
| Professional Indemnity (PI) insurance | Not a qualification, but a non-negotiable — it protects you if the report is negligent | Every credible consultant should carry it; ask the cover level |
The bottom line: an LPA does not legally require a specific badge, but a report from an AA Registered Consultant or ICF Chartered Arboriculturist carries the most weight and is least likely to be rejected. Anyone can be an "arborist"; these accreditations are the differentiator. You can verify membership through each body's own public directory — do not take a claimed accreditation on trust.
Requirements are set locally — pick someone who knows your council
This is the point most homeowners miss, and it is why local knowledge matters as much as letters after a name. There is no single national rule that says "a BS5837 survey is required." The requirement comes from your LPA's local validation list, and those lists — plus the tree officer's expectations in practice — genuinely vary from council to council:
- Some councils demand a full Arboricultural Impact Assessment, Tree Protection Plan and preliminary method statement at validation; others accept a survey and constraints plan up front and condition the rest.
- The exact trigger wording and distance thresholds differ — many lists explicitly include driveways, drains and utilities, and neighbouring trees whose root protection areas cross your boundary.
- Local TPO density, conservation-area coverage and the presence of veteran or ancient trees all raise the bar in some areas and not others.
A consultant who has worked with your authority knows its checklist, its tree officer and its habits. PlanWatch tracks live tree-related planning activity per council, so you can see how active your authority is and search comparable applications in your area before you instruct anyone. Browse the tree survey hub and example authority pages such as Leeds, Manchester and Bristol to get a feel for local expectations, then ask every candidate: which documents does my specific council require, and have you dealt with its tree officer?
Note the national dimension too: this guidance and the validation framework are England-centric. BS5837:2012 and the professional accreditations apply UK-wide, but Wales, Scotland and Northern Ireland run parallel-but-distinct planning and tree-protection regimes — confirm the framework if your site is in a devolved nation.
The vetting checklist
Before you instruct anyone, confirm:
- Accreditation — Are they an AA Registered Consultant or ICF chartered? Ask them to name it, then verify it in the body's directory. Be wary of anyone who lists no accreditation at all.
- PI insurance — Do they carry current professional indemnity cover, and at what level?
- Relevant, recent BS5837 experience — Not tree work in general, but development-related work: surveys that shaped layouts, impact assessments, method statements. Ask for comparable examples.
- The right deliverable for your council — Do they map the documents to your LPA's validation list? A planning job may need a survey, Tree Constraints Plan, AIA, Tree Protection Plan and AMS.
- Local knowledge — Familiarity with your specific tree officer and validation requirements is a genuine advantage, because the specifics vary council to council.
- A clear, itemised quote — Vague pricing is a red flag. See our tree survey cost guide for the ranges to expect.
Red flags to avoid
- No named accreditation, and evasiveness when you ask.
- Quoting only on price with no reference to the documents your council actually requires.
- A "survey" with no BS5837 category grading — every tree should be graded U, A, B or C, never the outdated "Category R", which does not exist in BS5837:2012.
- Willingness to skip the survey stage, or to produce a report that fits a design already fixed rather than one that informs the layout — BS5837 is meant to shape the design, not rubber-stamp it.
- No PI insurance.
Why the cheapest option costs more
The recurring lesson across planning refusals is that a thin, unaccredited report is a false economy. Missing arboricultural documents at validation is the single most common reason tree-related applications are returned before they are even registered. If the tree officer rejects the report, you face redesign, resubmission and months of delay — costs that dwarf the few hundred pounds saved. A properly credentialed consultant who knows your council produces a report accepted first time. That is the whole point.
Next steps
Use our find a tree surveyor directory to start, then run this checklist against every candidate. To understand what you are commissioning, read what a BS5837 tree survey includes and how to read your arboricultural report. If you already have a post-permission condition, see how to discharge an arboricultural planning condition. And check live tree-related planning activity for your area via the tree survey hub — including local pages like Nottingham and Lambeth — before you commit.
Scope note: this guidance reflects England; Wales, Scotland and Northern Ireland have parallel but distinct planning and tree-protection regimes. BS5837:2012 and the professional accreditations above apply UK-wide.