Waltham Forest Council's Planning Committee has approved a single-storey wraparound rear extension at 43 Pretoria Avenue, London, E17 7DR. The decision was made during a meeting on Tuesday, 8 September 2026.
The approved extension will have an overall depth of approximately 8.59m on the side return and a depth of 2.08m from the rear wall of the dwellinghouse. The height along the shared boundary with No. 41 Pretoria Avenue will be set at 2.4m at the eaves.
Concerns raised by objectors included potential increased noise from bi-fold doors and windows, the extension appearing out of keeping with neighbouring properties, reduced outdoor space, and potential loss of daylight and sunlight. However, council officers stated that noise from general use is considered non-material, and the extension's design was assessed as being in keeping with the area. The reduction in outdoor space was not deemed significant.
Council officers deemed the extension 'in keeping with the area' due to several factors. These included the extension's design, scale, and height being considered appropriate for the context, and the use of suitable materials that would integrate with the surroundings. The established pattern of similar rear and side extensions within the terrace and general area was also a consideration. Furthermore, the extension's depth aligns with the existing building line of the neighbouring property at No. 41 Pretoria Avenue.
The height restriction of 2.4m along the shared boundary is in line with the council's Supplementary Planning Document (SPD) on Residential Alterations and Retrofit (2026). This SPD provides guidance for residential extensions, stating that for single-storey rear extensions where adjacent terrace or semi-detached properties are without an existing extension adjacent to the boundary, extensions exceeding 3m in depth should not exceed a height of 2.4m at eaves level on the shared boundary, measured from the adjoining property's ground level. The document also emphasizes that rear extensions are expected to demonstrate a high standard of design quality.
Regarding concerns about daylight and sunlight, the assessment concluded that the proposal would not result in an unacceptable level of enclosure, poor outlook, or privacy concerns that would cause unreasonable harm to the neighbouring occupants. This conclusion was based on the low eaves height along the shared boundary, the extension's relationship to the neighbouring flank wall, and the absence of new side openings. The report also noted that existing two-storey outrigger projections on terrace properties already create a significant impact, and the single-storey extension would not exacerbate this situation beyond what is considered acceptable.
The committee granted planning permission subject to conditions and informatives. Condition 1 states that the development must begin within three years, and Condition 2 requires the development to be carried out in accordance with approved plans. Informative 1 reminds the applicant that planning permission does not constitute approval under Building Regulations. Further details on the decisions made can be found in the Decisions 08th Sep 2026 Planning Committee document.