Croydon Council's Planning Sub-Committee has approved plans for extensions at 8 Rayleigh Rise, South Croydon. The decision, made on Thursday, 30 April 2026, grants permission for the demolition of a detached garage and the construction of two-storey side and single-storey rear extensions, along with a dormer extension in the rear roof slope. The proposed development includes the addition of two new bedrooms and three new bathrooms, though the property will remain a single-family dwelling.
The committee's decision followed a report by the Director of Planning & Strategic Transport, which concluded that the proposed development would not negatively impact the character and appearance of the property or the surrounding street scene, nor would it adversely affect the amenities of neighbouring properties. The Director's conclusion was based on several factors:
- Subservience to the host property: The two-storey side extension, measuring 5.1m wide, will be set back 1.5m from the front of the property at first-floor level and feature a hipped roof with eaves matching the main roof height. The ridge will be set down marginally from the main roof ridge. The single-storey rear extension will be 4.5m in depth and cover the majority of the property's width, with a height of 3.25m, rising to 3.8m with a central roof lantern. A modest rear dormer extension will be set in from the roof edges and not visible from the street. These extensions are considered capable of being accommodated within the generous setting of the property and appear as subservient additions.
- Materials and fenestration: Proposed materials will harmonise with the existing property, with a condition recommended to ensure they match the existing building. Fenestration will be appropriately sited and proportioned.
- Comparison with previous permissions: The development is identical in appearance to a previously granted permission in 2018 (ref. 18/00142/HSE), with the exception of a slightly lower floor level for the new garage. The proposed two-storey side extension's width is slightly wider than similar extensions at neighbouring properties, but with a similar gap to the boundary, and is considered acceptable.
- Contextual harmony: The two-storey side extension will infill the area between the main property and the boundary with No. 9 Rayleigh Rise, maintaining a gap to the boundary. The single-storey rear extension's siting will not impact properties on Croham Manor Road, and the separation distance to the nearest rear property (38A Croham Manor Road) will remain similar to existing conditions.
Councillor Danielle Denton, the local ward councillor, had initially raised concerns regarding water usage, mechanical ventilation, and potential impacts on parking and traffic. Planning officers addressed these points as follows:
- Water usage: Councillor Denton questioned how the scheme would mitigate overuse of mains water and promote conservation. Officers noted that planning policies do not limit bathrooms and that the property would remain a single dwelling, meaning water usage impacts would be commensurate with its current use. A condition requiring the installation of a water butt was imposed to mitigate the reduction in soft landscaping due to the new patio and extensions built over existing paving and the garage. This water butt is considered adequate flood mitigation for this instance, as per Policy DM25 requiring sustainable drainage measures.
- Mechanical ventilation: While not directly addressed in the provided text, the focus on sustainable drainage and the imposition of a water butt condition suggest a proportionate approach to environmental considerations.
- Parking and traffic: Councillor Denton's concerns about parking and traffic impacts were addressed by stating that the property would retain two parking spaces (provided by the new garage and existing hardstanding). As the property remains a single-family dwelling, it is not considered to impact surrounding street parking to a degree warranting refusal. Furthermore, there would be no material change in vehicle movements, thus no material impact on transport or the highway network.
As part of the approval, conditions have been imposed, including the installation of a water butt and a stipulation that no windows be inserted in the west elevation to prevent overlooking. The meeting agenda and public reports pack can be found at Agenda frontsheet 30th-Apr-2026 19.15 Planning Sub-Committee and Public reports pack 30th-Apr-2026 19.15 Planning Sub-Committee.
