A planning application was submitted for a two-storey rear extension at 15 Tudor Way, Windsor, together with a new front entrance canopy and alterations to fenestration, to facilitate the subdivision of the existing dwelling into two separate residential units. The property was a mid-terrace house in a uniform row. Planning Voice prepared a detailed objection on behalf of the next-door neighbours, raising loss of light and outlook, loss of privacy, harm to the terrace’s uniform character, loss of a family-sized dwelling, and highway safety concerns on a pronounced bend. The application was withdrawn before determination.
The clients lived at the adjoining property on Tudor Way and had four principal concerns. First, the two-storey rear extension would cause a significant loss of light to their property, particularly during afternoon hours, affecting both internal rooms and their rear garden. Second, the increased traffic generated by two households on a site located on a bend in the road posed highway safety risks. Third, the extension would break the established building line of the terrace, changing its character in a way that was out of keeping with the uniform row. Fourth, the overall scale of the proposed development was far too large for a mid-terrace plot, amounting to an over-intensive use that would compromise the established residential environment.
Our review identified that the proposed two-storey rear extension would project significantly beyond the established rear building line, introducing a substantial increase in built form close to the side boundary with No. 17. This enlarged footprint, particularly at first-floor level, would be visually overbearing due to the minimal separation distance between terrace properties. The height and depth of the extension would result in an unacceptable sense of enclosure for occupants of No. 17, affecting both the rear garden and internal rooms including a rear-facing ground-floor window and door and an adjacent first-floor window. The introduction of new first-floor windows closer to the side boundary would provide direct views into neighbouring gardens, reducing the privacy enjoyed by residents. The subdivision would result in the loss of a modestly sized family home in a cul-de-sac valued for its proximity to schools and community facilities, with no evidence of local need for smaller subdivided units. The parking layout on a pronounced bend was tightly configured, with unclear provision for safe manoeuvring in forward gear.
The objection engaged four key policy areas. On residential amenity, Policy QP3 of the Royal Borough of Windsor and Maidenhead Local Plan 2022 requires proposals to have no unacceptable effect on the amenities of adjoining occupiers in terms of visual intrusion, loss of privacy or overshadowing. The cumulative impact of proximity, height and projection rendered the development oppressive and disproportionate. Paragraph 135 of the NPPF requires a high standard of amenity for existing users.
On character, Policy QP1 expects development to respond positively to its wider context and contribute positively to the townscape. The extension disrupted the rhythm and symmetry of the terrace by projecting beyond the established rear building line and altering the traditional proportions of the host dwelling. On loss of a family home, Policy HO2 seeks to ensure housing development delivers an appropriate range of dwelling types and sizes including family homes. The subdivision was an unjustified intensification that would erode the family-oriented character of the cul-de-sac. On highway safety, Policy IF2 requires adequate, well-designed parking that does not adversely impact the highway network. The bend in the road, combined with the tightly configured parking for two households, introduced unacceptable risk.
The Royal Borough of Windsor and Maidenhead confirmed that the application was withdrawn on 8 July 2025. The withdrawal followed the submission of Planning Voice’s detailed objection, which had set out clear and substantive conflicts with four key policies of the adopted Local Plan and the NPPF. The objection demonstrated that the proposal would cause unacceptable harm to the amenity of adjoining occupiers, erode the uniform character of the terrace, result in the unjustified loss of a family-sized dwelling, and introduce highway safety risks on a constrained bend. The applicant chose not to proceed to determination.
Subdivision proposals on mid-terrace properties face strong resistance where they break the established building line, introduce overlooking, and result in the loss of a family home without demonstrated local need. A well-evidenced objection addressing amenity, character, housing mix and highway safety can prompt withdrawal before the application reaches a formal decision, saving both sides the cost and uncertainty of an appeal.
Related guidance: Extension Objections · Loss of Light · Loss of Privacy · Traffic & Parking
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