Case Study: Cutting Back a Large Oak Tree on a Residential Street in Sussex

Client: Private homeowner, East Sussex
Service: Crown reduction & deadwood removal
Tree Type: Mature English Oak (Quercus robur)
Date Completed: March 2025
Duration: 1.5 days
Team: 2 qualified tree surgeons (NPTC certified)

Overview

We were contacted by a homeowner in East Sussex, who had concerns about a large mature oak tree growing close to the boundary of their property and overhanging the public pavement and road. The tree had grown significantly over the past 10 years, causing:

  • Blocked light to upstairs windows
  • Safety concerns about overhanging limbs above a public walkway
  • Deadwood falling during high winds

The client wanted to retain the tree but ensure it was safe, well-maintained, and no longer causing disruption.

Initial Assessment

Our team conducted a full site visit to:

  • Assess the health and structural integrity of the oak
  • Identify dead, crossing or hazardous limbs
  • Ensure the tree was not subject to a Tree Preservation Order (TPO)
  • Carry out a risk assessment for public access and street proximity

The tree was not protected under a TPO, and we proceeded with a plan for selective crown reduction and targeted deadwood removal.

Large roadside tree with dense, overgrown crown before professional crown reduction in Sussex

Work Undertaken

Traffic & Public Safety Measures

  • Temporary pedestrian and traffic management was put in place using cones and signage
  • Work was scheduled during low-traffic hours to minimise disruption
  • Our team maintained constant ground-level monitoring for public safety

Crown Reduction (Approx. 20%)

We carried out a sympathetic reduction of the crown by approximately 20% to:

  • Reduce end weight and canopy spread
  • Improve natural light to the property
  • Maintain the natural shape and form of the tree

All cuts were made to growth points, following BS3998 (Tree Work – Recommendations)

Deadwood Removal

  • Several minor dead limbs and stubs were removed from the mid and upper canopy
  • Cavity-prone areas were cleared to reduce the risk of decay and limb failure

Waste Management

  • All cuttings were removed from site and 100% recycled as mulch and biomass
  • The work area was left tidy, clear and safe
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Outcome

The client was extremely satisfied with the outcome:

  • The tree retained its natural shape and character
  • Light levels in the property improved significantly
  • The tree now poses less risk to passers-by or vehicles
  • Feedback from neighbours and passers-by was very positive

The homeowner also booked us in to carry out annual inspections and light maintenance going forward.

Client Testimonial

“I was really impressed with the professionalism and knowledge of the team. They respected the tree, the neighbours, and the street – and worked quickly, safely, and with great care. The results speak for themselves.”

— Mrs. J. Bennett

Project Highlights

  • Mature oak retained & reshaped for long-term health
  • Safe, professional work carried out on a public-facing site
  • Fully compliant with BS3998 standards
  • Handled by qualified, insured tree surgeons
Same roadside tree after crown reduction, with lighter, safer canopy carried out by Garnham Tree Surgery