Five new flats are set to be created on Ruislip High Street after a planning committee approved a change of use application for 54 High Street. The Hillingdon Planning Committee met on Tuesday 14 July 2026 and granted approval for the conversion of part of the ground floor and the entire first floor from financial and professional services to residential use.
The previous use of part of the ground floor at 54 High Street was Financial and Professional Services (Use Class E (c)). The proposal retains 184 square metres of Class E commercial space on the ground floor, which will include enhancements to the shopfronts and the creation of a new central entrance to the upper floors.
The plans also include alterations to the roof, with the rear section being raised and dormer windows added. Seven roof lights will be installed on the front roof slope, creating an additional floor of residential space. This will result in a total of five new flats: two one-bedroom flats with gross internal floor areas of 59 sqm and 51 sqm respectively, and three two-bedroom flats with gross internal floor areas of 77 sqm, 84 sqm, and 82 sqm.
The development will retain the existing first-floor balcony, a feature of the building, and new balconies will be added to the second floor. Associated bin and cycle storage will also be provided.
The application was called to committee due to a petition with 35 signatures raising concerns about the impact on the character and appearance of the building and conservation area, neighbour amenity, and parking. The petition specifically raised concerns about the principle of replacing existing structures with flats, overdevelopment, impact on the character of the area, loss of green space, increased traffic and parking pressure, impact on neighbouring amenity, construction disturbance, and a failure to comply with local policies. The committee addressed these concerns by assessing the scale, layout, density, design, landscaping, highways, parking, and quality of accommodation. The proposal was considered acceptable in principle and in terms of design, character, and amenity, subject to recommended conditions.
The Highways Officer raised no objections, stating that the development would be 'car-free' for the residential component. A legal agreement is recommended to ensure future occupiers are not entitled to join any parking management scheme within an existing or future Controlled Parking Zone in the vicinity of the site. This 'car-free' approach is deemed acceptable due to the physical parking constraints on the local highway network and the site's proximity to public transport.
The committee approved the plans, noting that the commercial space retained was substantial and that the proposed changes to the roof were predominantly to the less-visible rear of the building. The planned enhancements to the shopfronts and the creation of a new central entrance to the upper floors are part of the development, though an expected timeline for these specific improvements was not provided.
Further details on the committee's decisions can be found in the Decisions 14th July 2026 Hillingdon Planning Committee document.
