Lindum 36 Albion Road Chalfont St Giles Buckinghamshire HP8 4EW

1. 1.The proposed two-storey rear extension, by reason of its excessive depth, scale, height, proximity to the northern boundary and overall massing, would result in an unduly overbearing and visually intrusive form of development when viewed from the neighbouring property at No. 34 Albion Road. The extension would project significantly beyond the rear elevation of that neighbouring property and would present an extended flank wall which, when viewed from the rear habitable room windows and private rear garden area of No. 34, would appear unduly dominant, visually intrusive and overbearing. The depth and siting of the proposed two-storey rear extension would materially increase the sense of enclosure experienced by the occupiers of No. 34 Albion Road, resulting in demonstrable harm to neighbouring residential amenity. Accordingly, the proposal would be detrimental to the amenities of the occupiers of No. 34 and is therefore contrary to Policies GC3, H13 and H14 of the Chiltern District Local Plan 1997, including alterations adopted 29 May 2001, consolidated September 2007 and November 2011, and the amenity and design principles set out within the Residential Extensions and Householder Development Supplementary Planning Document, September 2013.
2. 2.The proposed works would involve substantial alterations to the existing dwelling, including extensions and works affecting the roof structure and roof slopes. Given the extent of works to the roof fabric, there is a reasonable possibility that the development could impact potential bat roosting habitat. The applicant has failed to submit a preliminary ecological survey or any bat survey. Without adequate survey information it is not possible to assess the impacts of the development on any potential protected species and thus meet the requirements of the National Planning Policy Framework. This information needs to be assessed as part of a planning application, otherwise it is not possible to ascertain what mitigation may be required or whether the proposal would have an unacceptable impact on protected species. As such, there is insufficient information to demonstrate that the proposal would conserve and enhance biodiversity and the proposal is therefore contrary to: Policy CS24 of the Core Strategy for Chiltern District (Adopted November 2011); Policy NC1 of the Chiltern Local Plan Adopted 1 September 1997 (including alterations adopted 29 May 2001, Consolidated September 2007 & November 2011); Section 15 (Conserving and enhancing the natural environment) of the National Planning Policy Framework 2024; The Conservation of Habitats and Species Regulations 2017 (as amended); and Sections 40 and 41 of the Natural Environment and Rural Communities Act 2006.

From the council's decision notice.

Postcode

HP8 4EW

Application type

Full Application

Scale / size

Medium

Parish

Chalfont St Giles

Date validated

7 November 2025

Consultation expiry

2 January 2026

Consultation start

14 December 2025

Consultation end

2 January 2026

Neighbour consultation start

14 December 2025

Neighbour consultation end

2 January 2026

Last date for comments

2 January 2026

Target decision date

27 February 2026

Agent

Dusek Design Associates Ltd

Agent address

Moor House Farm Estate Lower Road Higher Denham Uxbridge Middlesex UB9 5EN

Statutory period

112 days

Documents

7