PL/0226/26

- The proposal by reason of the excessive number and size of the front and rear rooflights on the main roof and the bulk, design and massing of the single storey rear extension, would give rise to a visually obtrusive and unsympathetic development which would have a detrimental impact on the character and appearance of the existing dwelling and streetscene, as well as the setting of the Harrow on the Hill Village Conservation Area. There are no public benefits identified that would overcome the less than substantial harm to the designated heritage assets. The proposal would therefore be contrary to the relevant provisions of the National Planning Policy Framework (2024), Policies D3 (D1, D11, D12) and HC1 of the London Plan (2021), Policies GR1 and HE1 of the Harrow Local Plan (2021-2041), the adopted Supplementary Planning Document: Residential Design Guide (2010) and the Harrow on the Hill Village Conservation Area Appraisal and Management Strategy (2008).

- The proposed single storey rear extension, by reason of its siting, depth, height and massing, would result in a form of development that is unduly dominant and visually intrusive and would give rise to an adverse overbearing impact, sense of enclosure and loss of light and outlook for the neighbouring occupiers at 7 Trafalgar Terrace, to the detriment of their residential amenities, contrary to the National Planning Policy Framework (2024), policies D3 (D7) of the London Plan (2021) and GR1C of the Harrow Local Plan (2021- 2041).

- Insufficient information has been provided to enable an assessment of the potential impacts of the proposed loft conversion and associated rooflights on protected bat species. In the absence of an appropriate bat survey and supporting ecological assessment, it has not been demonstrated that the development would avoid disturbance to, or harm to, bats or their roosting, foraging, or commuting habitats. The proposal therefore fails to adequately demonstrate that protected species would not be adversely affected, contrary to the National Planning Policy Framework (2024), Policy G6 of the London Plan (2021), and Policy GI3 of the Harrow Local Plan (2021–2041),