John Lyon School's new teaching facility gains planning approval
Harrow Council's Planning Committee has granted planning permission for John Lyon School to convert an office building into a teaching facility, allowing for an increase in student numbers.
The decision, made on Tuesday, October 6, 2026, permits the change of use of Le Beau House at 76 West Street, Harrow on the Hill, from office use to a teaching facility for up to 67 sixth form students. This change will accommodate an increase in the school's total student numbers from 600 to 667.
Transport and Amenity Considerations
The application faced scrutiny regarding its potential impact on traffic congestion and highway safety. Previous planning applications to increase student numbers at John Lyon School were refused due to unacceptable level of noise, disturbance and traffic movements, to the detriment of the residential amenities in Middle Road, Lower Road, Byron Hill Road, Crown Street, Chartwell Place, Clonmel Close and surrounding areas.
One refusal also cited concerns regarding adverse impact on highways safety.
Objectors raised concerns about increased vehicle drop-offs and pick-ups, parking issues, and noise pollution. However, council officers concluded that the proposed increase in student numbers, reduced from previous proposals, would generate an additional 15 vehicle trips during peak hours, which they deemed manageable within the existing transport infrastructure without adverse effects on road safety or congestion.
A legal agreement will be put in place to cap the number of students at Le Beau House at 67 and to ensure students only access the site via Middle Road, not West Street. The agreement will also replace the existing cap of 600 students for the entire John Lyon School site with a new cap of 667, with no more than 67 accommodated at Le Beau House. This agreement clarifies that the Student Cap: applies to Students only and does not include staff, contractors, visitors, or external professionals, and applies to any simultaneous presence, including timetabled lessons, study periods, examinations, enrichment, and pastoral sessions conducted within the property.
Concerns about noise were addressed through a Noise Impact Assessment (NIA) and a Noise Technical Note. The NIA, after amendments, assessed noise breakout from classrooms and concluded that in a worst-case scenario, classroom noise would not be audibly adverse. The report also states that there would be sufficient mitigation measures to be provided to mitigate any adverse noise impact for the neighbouring occupiers.
Additionally, a condition will restrict the hours of use for the site to between 7 am and 5:30 pm on weekdays to mitigate any adverse noise impact for the neighbours outside of school hours.
Before its conversion to a teaching facility, Le Beau House was used as an office building (Use Class E(g)(i)) by the staff of John Lyon School for administrative purposes. The existing office space used by the school's administration would be relocated to the main campus. Le Beau House is to be used as a teaching facility for up to 67 sixth form students, with no external alterations proposed to the building.
The existing car park to the rear of Le Beau House, which can accommodate up to 26 vehicles, would be retained and used by staff only. Students would not be allowed to drive to school or use the parking facilities on site. The proposal would not result in any increase in the number of students and staff, and therefore the traffic along West Street would not increase. The existing access arrangements for students and staff would remain the same.
Heritage and Design
The proposal involves no external alterations to the locally listed Le Beau House, thus preserving the character and appearance of the Harrow on the Hill Conservation Area and nearby heritage assets. The site is also within an Archaeological Priority Area, but no excavation works are proposed, meaning no adverse impact on archaeological interests is anticipated.
Conclusion
Overall, the committee found the proposed development acceptable, citing its provision of social infrastructure, accessibility, and lack of adverse impacts on heritage, amenity, and highway safety, subject to the agreed legal agreement and conditions. The change of use is seen as a benefit, improving teaching facilities for the school.
More details on the planning application can be found in the Public reports pack for the Planning Committee meeting on Tuesday 6 October 2026.