N5 2HG.

The eucalyptus tree is causing ongoing and progressive structural damage to the property. A structural engineer’s report (attached) confirms that the tree’s proximity to the building (approximately 2.44 metres from the rear extension) and its high water demand are resulting in significant soil moisture extraction from shrinkable London Clay beneath shallow foundations. This has led to repeated cycles of clay shrinkage and rehydration, causing differential ground movement that is manifesting as cracking to the rear extension, internal walls, external masonry and associated retaining walls. The cracking is structural in nature, has reappeared following previous repairs, and is actively worsening following seasonal weather changes, demonstrating that the underlying cause remains unresolved. The report further identifies deformation and cracking of the adjacent retaining wall, which is being exacerbated by ground movement and fluctuating soil moisture conditions associated with the tree. It concludes that remedial works to the building and retaining structures will not be effective unless the influence of the tree is removed, and that continued retention of the eucalyptus will result in ongoing and potentially increasing damage. On this basis, the structural engineer considers the tree to be a material and significant contributing factor to the damage currently occurring and recommends its removal as a necessary prerequisite to stabilising the property and preventing further deterioration. Species: Eucalyptus (gum tree) Quantity: One (1) Location: Rear garden of the property, positioned approximately 2.44m from the rear extension retaining wall and shallow foundations. Description: Mature eucalyptus tree with a substantial canopy and trunk diameter consistent with maturity (as shown and described in the attached structural engineer’s report). Proposed works: Removal of one mature eucalyptus tree. Method: Controlled and staged removal, commencing with crown reduction followed by phased removal of the main stem, in accordance with the recommendations set out in the attached structural engineer’s report. Stump treatment: The stump to be cut down to near ground level and treated to prevent regrowth. Full stump grubbing is not proposed at this stage to avoid sudden soil disturbance and rapid rehydration of shrinkable clay soils. Reasoning: The staged approach is intended to manage the risk of post-removal ground heave and to allow gradual rebalancing of soil moisture conditions.

123 Highbury New Park, London · premises record

Rear garden (T1) Eucalyptus - FELL (remove) to ground level. Plant suitable replacement tree.

Flat A, 117 Highbury New Park, London, N5 2HG · premises record

Rear garden Ash (T1) - Whole crown reduction by 3-4m (pruning cuts are not extend below the last, most recent crown reduction points). Front garden Fatsia Japonica (T2)* - Fell due to Structural Engineer advice and replace with the same. *Council consent is not required for the removal of a shrub such as this one. .

119 Highbury New Park, London, N5 2HG · premises record

Installation of Air Source Heat Pump in rear garden. Remove windows to front bays and replace with timber framed double glazed windows. Remove windows and amend 3 existing openings and replace with timber framed double glazed windows and doors. Replace rear door to match existing. Removal of unstable retaining walls and steps to front and rear gardens. Construction of new retaining walls and steps to front and rear gardens.

Ground Floor Flat, 119 Highbury New Park, London, N5 2HG · premises record

Certificate of Lawfulness (Existing) Rear Extension

111 Highbury New Park, London, N5 2HG · premises record