what we do

Tree Surveys

About our services

What is a BS5837:2012 Tree Survey?

A BS5837:2012 tree survey records and assesses trees on or adjacent to a development site in line with British Standard 5837:2012 “Trees in relation to design, demolition and construction.” It identifies which trees should be retained, their condition and quality, and the constraints they place on a proposed design.

Most local planning authorities require a BS 5837 survey where trees are present on or near a site being considered for development — from a single-plot extension to a multi-unit scheme.

01 — Tell us about your project

Send the site address, plans and details of the proposed work

02 — Receive a quotation

We confirm the required service, scope, fee and timescale

03 — Site Survey

The site is inspected and relevant tree data recorded

04 — Report & Plans

Your schedule, constraints plan and report are issued

BS5837:2012 Tree Survey

Professional tree surveys and constraints plans to identify arboricultural constraints and inform the design and planning process.

When you might need one?

– Your site contains trees, or trees on neighbouring land overhang or are close to the boundary
– You’re submitting a planning application and the local authority requires arboricultural information
– You want to understand tree constraints before committing to a design
– A previous application was refused or delayed due to insufficient tree information

What LEAF Consultancy does

– Survey and record all relevant trees, including species, dimensions and condition
– Categorise each tree in line with BS 5837 (A, B, C or U quality)
– Calculate Root Protection Areas (RPAs)
– Prepare a Tree Constraints Plan showing RPAs and canopy spreads
– Provide a written schedule and constraints report

What you’ll receive

A tree survey schedule, a Tree Constraints Plan (PDF and CAD-compatible drawing), and a written report suitable for submission with a planning application — including recommendations for how the design can work around retained trees.

Frequently asked questions

How long does a BS 5837 survey take?

Site inspections are typically completed within a day for most residential sites; report turnaround depends on site complexity and current workload — this will be confirmed in your quotation.

Do I need a survey if there’s only one tree on site?

Often yes — many planning authorities require arboricultural information whenever a tree could be affected by proposed works, regardless of how many trees are present.

How long is a BS 5837 survey valid for?

Surveys are generally considered valid for around two years, though this can vary depending on tree condition and site changes — we can advise on your specific case.

Contact us today to discuss your project