Single-storey rear extension at 10 Langley Avenue, Hemel Hempstead

What was proposed

The application proposed a single-storey rear extension with a flat roof, matching materials, associated windows and internal alterations.

“Planning permission is sought for a single storey rear extension with flat roof, associated fenestration and internal alterations and shall be constructed in materials to match existing. The extension will have a maximum depth of 6.00 metres, a maximum height of 3.00 metres, and a maximum width of (approximately) 6.50 metres.”

“The application references two single storey rear extensions which were approved under Housing Prior Approval application – reference number: 25/00211/HPA. This application is for those extensions, plus the vacant area between them and the extension as a whole is assessed throughout this report.”

Officer report

The site

The site is a two-storey semi-detached house with existing side extensions and gardens in a residential part of Hemel Hempstead.

“The application site comprises a two storey semi-detached dwellinghouse with hipped roof design, existing single storey side extensions, and garden amenity space to the front, side and rear. The site is positioned on the south-hand side of Langley Avenue at the confluence with Sunrise Close in Hemel Hempstead which is an area characterised by residential development.”

Officer report

Earlier applications

Earlier applications included approved side and rear extension proposals, a prior approval for rear extensions, and other applications involving flats and an HMO.

“25/00211/HPA - Single storey rear extension measuring 6m deep with a maximum height of 3m and a maximum eaves height of 3m. PNR (Prior Approval Not Required) - 24th February 2025”

“25/00352/FHA - Single storey side and rear extensions, and two storey rear extension GRA - 10th March 2025”

Officer report

Consultation responses

The environmental protection team raised no objection on land contamination grounds and required no further information or conditions.

“Comments Environmental And Community Protection (DBC) Having reviewed the application submission and the Environmental and Community Protection Team records I am able to confirm that there is no objection on the grounds of land contamination. Also, there is no requirement for further contaminated land information to be provided, or for contaminated land planning conditions to be recommended in relation to this application.”

Officer report

Neighbour concerns

Two neighbours objected, citing light and privacy loss, noise, visual intrusion, overdevelopment, parking and concerns about repeated applications.

“- Loss of light and privacy - Noise - Visual intrusion - Overdevelopment - Car parking - Number of applications…”

“During the consultation period for the previous application for two single storey rear extensions (25/00211/HPA) no comments were received such that the applied for works did not require prior approval and no additional assessment of residential amenity was required.”

Officer report

Who spoke

The ward councillor and another speaker spoke against the application, while a speaker supported it.

The decision

Planning permission was granted.

“Resolved: That planning permission be GRANTED. RECOMMENDATION That planning permission/listed building consent be GRANTED.”

Minutes

Permission conditions

The permission requires commencement within three years, matching materials, compliance with approved plans and obscured glass in one extension window.

“Condition(s) and Reason(s): The development hereby permitted shall begin before the expiration of three years from the date of this permission. Reason: To comply with the requirements of Section 91 (1) of the Town and Country Planning Act 1990, as amended by Section 51 (1) of the Planning and Compulsory Purchase Act 2004. 2.”

“Obscure Glazing The window at ground floor level in the south-west facing elevation of the extension hereby permitted shall be permanently fitted with obscured glass with a minimum of privacy level three.”

Minutes