Large-Scale Tree Removal

Multi-Tree Removal for Commercial and Development Projects

Removing a single garden tree is straightforward. Removing dozens — or hundreds — of trees from a development site, estate, or infrastructure corridor is a different discipline entirely. It demands detailed planning, the right equipment, regulatory compliance, and a team large enough to maintain momentum without compromising safety.

Gem Tree Management has delivered large-scale tree removal projects across Hertfordshire and North London for over 20 years. Our clients include developers, main contractors, local authorities, housing associations, schools, and private estates. Whether the project involves 10 trees on a residential infill site in Mill Hill or 500 across a new-build housing estate in Hoddesdon, we have the capacity, equipment, and experience to deliver on programme and within budget.

Planning Compliance and Pre-Commencement Requirements

Tree removal on development sites is governed by planning conditions, and getting this wrong can result in enforcement action, stop notices, or prosecution. Before a single tree is cut, we ensure that:

• Approved plans are cross-referenced — every tree scheduled for removal is verified against the approved BS5837 survey and arboricultural impact assessment
• TPO and conservation area trees are checked — any protected trees requiring separate consent have the correct permissions in place
• Tree protection fencing is installed — retained trees are fenced off at the root protection area boundary before removal works begin nearby, in compliance with the arboricultural method statement
• Pre-commencement conditions are discharged — including any requirements for ecological surveys, arboricultural supervision, or tree protection plan approval

We coordinate directly with your planning consultant and the local authority's tree officer to ensure full compliance before mobilising. Cross-referencing the approved tree survey and arboricultural impact assessment is a non-negotiable first step on every project.

Protected Species and Ecological Considerations

Trees are habitats. Before removing mature trees, particularly those with cavities, loose bark, dense ivy, or proximity to water, the potential for protected species must be assessed:

• Bats — all bat species and their roosts are protected under UK law. Trees with bat roost potential require a preliminary roost assessment and, in many cases, emergence surveys conducted between May and September. A licence from Natural England is needed before any tree with an active roost can be felled
• Nesting birds — all wild birds are protected during nesting. Wherever possible, we programme large-scale removal works outside the nesting season (March–August). Where this is not possible, every tree receives a nesting bird check by a qualified ecologist within 48 hours of felling
• Other species — depending on the site, dormice, great crested newts, and other protected species may need consideration

We work with a network of licensed ecologists and can incorporate survey costs and timelines into your project programme from the outset.

Equipment and Methodology

Large-scale tree removal requires more than chainsaws and a chipper. Depending on the site and the trees involved, we deploy:

Crane-Assisted Removal

For mature trees adjacent to buildings, boundary walls, or retained trees where conventional felling or climbing is impractical. Our crane operations are planned by an appointed person, with detailed lift plans for each tree. This method is faster and often safer than rope-and-rig dismantling for very large specimens. We used this approach to lift a failing cedar clear of a synagogue roof in Hendon and to remove three mature limes between period properties in Stanmore.

Mechanised Felling

On open sites with adequate access, excavator-mounted shears and processors can fell and process trees rapidly. This is the most efficient method for clearing large numbers of small to medium trees and is standard practice on infrastructure and housing development sites.

Climber Teams

Where access constraints, overhead services, or proximity to retained features prevent mechanised approaches, our climbing arborists dismantle trees section by section using rope and rigging techniques. We run multiple climbing teams simultaneously on large projects to maintain programme.

On-Site Processing

All branchwood is chipped on site using commercial drum chippers. Trunk timber is cross-cut with harvester heads or chainsaws and either removed for milling, processed into firewood, or chipped for biomass. We bring the processing capacity to match the felling rate, so material does not accumulate on site.

Traffic Management and Access

Tree removal alongside public highways, footpaths, and cycle routes requires traffic management in accordance with the New Roads and Street Works Act. We arrange:

• Road closures and diversions — applied for through the relevant highway authority with the required notice period (typically 12 weeks for planned closures)
• Temporary traffic signals and stop-go boards — for works on single carriageways where full closure is not justified
• Pedestrian diversions — signed and barriered routes around the work area
• Banksmen and traffic marshals — for vehicle movements on and off site

Our site managers hold NRSWA Supervisor qualifications and coordinate traffic management plans with the highway authority and your principal contractor.

Working Near Utilities

Trees growing near or over underground and overhead services present specific risks during removal:

• Overhead power lines — our ENA-certificated operatives follow GS6 safe working distances. Where isolation is required, we arrange shutdowns with the DNO
• Underground services — we conduct CAT and Genny surveys before any stump removal or root excavation, and request utility plans from the asset owners
• Telecoms and fibre — where root systems have grown around buried cables, we hand-excavate to expose the service before mechanical removal continues

Every project receives a services risk assessment, and our method statement details the precautions for each utility encountered.

Waste Management and Duty of Care

All timber and green waste from large-scale tree removal is processed and disposed of in compliance with Environmental Agency regulations:

• Waste transfer notes are issued for every load leaving site
• Branchwood is chipped and sent to licensed biomass facilities or offered for landscaping reuse
• Trunk timber of quality is supplied to sawmills for conversion; the remainder is processed into firewood or chipped
• Stumps and rootwood are ground on site with material either removed or reused, depending on the specification — our commercial stump grinding teams typically follow directly behind the felling crews

We operate as a registered waste carrier and can provide full waste audit documentation for your project files. On a recent private estate project near Beaconsfield, we produced a full chain-of-custody pack covering over 80 removed trees for the client's solicitors.

Programme Management

Large removal projects are driven by the construction programme. Trees often need to be cleared before groundworks can begin, and delays to tree removal cascade into every subsequent trade. We manage our works to programme by:

• Providing a detailed programme of works at tender stage, broken down by zone or phase
• Mobilising sufficient teams and equipment to meet the agreed dates
• Maintaining daily progress records and issuing weekly updates to the project manager
• Building in contingency for weather delays and ecological constraints

We are accustomed to working within CDM-managed site environments and integrating our operations with those of the principal contractor and other subcontractors.

Areas We Cover

We carry out large-scale tree removal projects across our full 30-mile service area from our base in Watford, covering Rickmansworth, Harrow, St Albans, Hemel Hempstead, Barnet, and all surrounding areas in Hertfordshire, Buckinghamshire, and North London.