Tree Surveys for Planning (BS 5837) in London
Is a Tree Survey stalling your planning application in London?
We step in with clear, technically sound BS 5837 evidence that London planners can rely on to validate layouts, test feasibility and keep applications moving without redesign or delay.
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Working in partnership with clients to ensure planning approval first time
Typical 10-day turnaround
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Do you need a Tree Survey for Planning in London?
If trees sit on or near your site in London, your planning application is highly likely to require a BS 5837 Tree Survey. Root protection areas, crown spread, access positioning and tree quality all influence whether a layout is acceptable. Without early arboricultural evidence, even small schemes can trigger validation delays, redesign requests or restrictive conditions.
We confirm what’s required quickly and proportionately so your application stays on track.
Across London, tree constraints most often affect planning where development occurs within dense urban settings and established neighbourhoods.
This commonly includes:
Residential streets with mature street trees, where extensions and basements are constrained
Infill and redevelopment sites, where retained trees shape layout and public realm
Transport-led schemes, where tree belts influence access and alignment
Tight urban plots, where root protection areas significantly affect buildable footprint
London boroughs expect tree constraints to be fully addressed at design stage.
We deliver Tree Surveys for Planning across all London boroughs, supporting residential and commercial development throughout Greater London.
Why Planning Authorities Require a Tree Survey in London
London planning authorities rely on clear arboricultural evidence to assess whether development layouts properly respond to existing trees. Trees are a material planning consideration under the Town and Country Planning Act 1990, with national policy reinforced through the NPPF and technical requirements set out in BS 5837 (Trees in relation to design, demolition and construction). Where proposals affect root protection areas, canopy spread or retained tree quality, planners must be satisfied that designs are feasible, proportionate and deliverable.
When arboricultural evidence is unclear or incomplete, applications are commonly delayed, conditioned or returned for revision.
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The Process - Tree Surveys for Planning
Our Tree Surveys for Planning are commercially aware, proportionate and planning-led, designed to support real-world construction sequencing, access logistics and foundation strategy without unnecessary escalation.
Key Deliverables for Tree Surveys in London
A planning-focused output that London planners can rely on:
BS 5837 tree survey and constraint data
Root protection area calculations and crown spread mapping
Retention categorisation with management commentary
Clear, decision-ready planning summary
This evidence supports confident layout design and predictable validation outcomes.
Step 1
Site Review
Scope and LPA requirements confirmed from site boundary and draft layout.
Step 2
On-site Survey
All relevant trees measured and assessed to BS 5837 standards.
Step 3
Interpretation
&
Mapping
Constraints, RPAs and canopy spread mapped for direct design use.
Step 4
Integrated
Planning
Support
Any integration with AIAs, Tree Protection Plans, drainage layouts or foundation strategies
Next Steps
Send your site details today and we’ll confirm exactly what your London project requires.
FAQ - Tree Surveys for Planning in London
Why might a BS 5837 tree survey be needed for planning in London?
A BS 5837 tree survey may be needed where trees are present on or close to a proposed development site in London. This can include extensions, basement developments, infill housing, apartment schemes, commercial projects, and redevelopment sites. The survey identifies tree related constraints early so they can be incorporated into the design before a planning application is submitted.
What information does a BS 5837 tree survey provide?
A BS 5837 tree survey records the species, height, stem diameter, canopy spread, age class, condition, and retention category of relevant trees. It also calculates Root Protection Areas (RPAs) and identifies constraints that may affect site layout, building positions, drainage design, utility installations, access arrangements, and construction activities.
Can street trees affect a planning application in London?
Yes. Street trees are often a significant consideration on London development sites. Even when located outside the application boundary, their canopies and Root Protection Areas may extend into the proposed development area. This can influence foundations, basements, access arrangements, drainage infrastructure, and construction methodology.
Why are tree surveys particularly important on constrained London sites?
Many London developments take place on compact urban plots where space is limited. A BS 5837 tree survey helps identify how retained trees may affect building footprints, scaffolding, service routes, access requirements, and construction activities. This information can help reduce planning issues and costly design changes later.
What is a Root Protection Area and why does it matter?
A Root Protection Area is the minimum area around a tree that should remain protected to maintain its health and stability. Development within an RPA can damage roots and affect the long term viability of retained trees. BS 5837 surveys calculate RPAs and display them on plans so designers can account for them during the planning process.
Do neighbouring trees need to be included in a BS 5837 survey?
Yes. Trees on neighbouring land may need to be assessed where they could influence the proposed development. Their canopies or Root Protection Areas may extend into the site, making them relevant to excavation works, basement construction, foundation design, access arrangements, and construction activities.
Are Tree Preservation Orders important for developments in London?
Yes. Trees protected by a Tree Preservation Order (TPO) or located within a Conservation Area can significantly influence development proposals. A BS 5837 survey helps identify protected trees and assess how a proposed development may affect them, enabling suitable mitigation and protection measures to be considered.
Which planning authority may request a BS 5837 tree survey in London?
Requirements vary between London boroughs, but authorities such as the Greater London Authority and individual borough councils may require arboricultural information where trees could be affected by development. Planning guidance can be found here: https://www.london.gov.uk/programmes-strategies/planning. Applicants should also review the validation requirements of the relevant London borough.
Can a BS 5837 tree survey help avoid planning delays?
Yes. Providing arboricultural information early allows planning officers to assess tree impacts alongside the wider development proposal. This can reduce requests for additional information, support smoother validation, and minimise delays during the planning determination process.
What documents may be required after a BS 5837 tree survey?
Depending on the proposal, additional documents may include a Tree Constraints Plan, Arboricultural Impact Assessment (AIA), Tree Protection Plan (TPP), and Arboricultural Method Statement (AMS). These documents explain how trees influence the development and set out the measures required to protect retained trees before, during, and after construction.