Flat A, 178 Knollys Road, London, SW16 2JS

Replacement of the existing uPVC curtain-wall windows and doors with aluminium-framed windows and doors within the existing openings to the Leigham Vale south-elevation communal stairwell.

Erection of a hip to gable and rear dormer extension including three roof lights to the front and a Juliet balcony to the rear.

T1 - London plane - crown lift (council tree) 12m in height. No reduction to height. Crown lift to give 3.5m clearance over the car park. A semi-mature London plane growing at the front of the building beside the low boundary wall, in good structural and physiological condition. Its lower branches extend out over the residents' car park, where they obstruct vehicles and are susceptible to damage from high-sided vehicles. Lifting the crown to give 3.5m clearance removes only the lowest secondary growth. T2 - Ash - cut back from lamp column 14m in height. No reduction to height. Cut back lateral growth to give 1.5m clearance from the lamp column. A mature ash standing in the front car park, in fair structural and physiological condition. Lateral growth on the side facing the lamp column has grown into and around the column, where it obscures the light and risks damage to the column and its fittings. Pruning is confined to the branches encroaching on the column, cut back to suitable growth points to give 1.5m clearance, and is the minimum work needed to keep the lighting clear.. T3 - Acer - crown lift (council tree) 8m in height. No reduction to height. Crown lift to give 3m clearance over the car park. A semi-mature acer growing beside the low wall at the front of the site, in good structural and physiological condition. Its lower branches hang over the parking bays, where they obstruct vehicles and pedestrians and are prone to damage. Lifting the crown to give 3m clearance removes only the lowest growth. T4 - Catalpa - cut back laterals 8m in height. No reduction to height. Cut back laterals by 2m from 7m to 5m. A semi-mature catalpa growing in the rear courtyard close to the boundary wall, in fair structural and physiological condition. Its lateral growth extends across the boundary, where it overhangs the neighbouring property and the shared access. Cutting back the laterals by 2m, from 7m to 5m, to suitable growth points resolves the encroachment.