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Abbey Farm House, Lavendon Grange, Lavendon, Olney, MK46 4HL

PLN/2026/0119Householder planning permissionRefused
Householder

Refused on 24 March 2026

Delegated (officer decision)1 reason for refusal

Approximate site (title boundary)
Boundary © HM Land Registry, © Ordnance Survey · details

This information is subject to Crown copyright and database rights 2026 and is reproduced with the permission of HM Land Registry. The polygons (including the associated geometry, namely x, y co-ordinates) are subject to Crown copyright and database rights 2026 Ordnance Survey AC0000851063. Conditions of use.

Proposal

Single storey front extension and first floor roof extension to form covered first floor balcony, extension and conversion of existing single storey open-sided barn to form new habitable space

Received
21 January 2026
Decision level
Delegated (officer decision)
Ward
Olney
  1. Received21 Jan
  2. Validated27 Jan
  3. Consult.
  4. Target
  5. Decided24 Mar

Decided in 56 days (council typically 56)

About this application

This is a full planning application for a front extension at ABBEY FARM HOUSE, LAVENDON GRANGE, LAVENDON, OLNEY, MK46 4HL. Milton Keynes has handled 1,205 applications of this type. This one was decided in 62 days, 6 days longer than Milton Keynes's typical decision time. The site is in 3 listed buildings nearby. There has been 1 other application at this address. In the past year there have been 90 applications across Olney. We hold 95 applications in total for the MK46 postcode area.

89% of full applications at Milton Keynes City Council were approved. Across all application types, the council typically decides in about 8 weeks (median).

Based on decided applications received in the last 3 years.Planning something similar? See what gets approved on your street

Why it was refused

  1. Insufficient ecological information has been provided to assess the potential impact of the proposed development on protected and priority species, including Great Crested Newts and bats. A Preliminary Ecological Appraisal (PEA), supported by appropriate species surveys (or application for a District Licence in terms of GCN), is required to determine the likely presence or absence of protected species and to identify any necessary mitigation measures should their presence be confirmed. In the absence of this information, the Local Planning Authority cannot conclude that the proposal would avoid harm to protected species, and therefore cannot discharge its statutory duty in considering such matters. The development is therefore contrary to Policies NE2 and NE3 of Plan:MK (2019).

From the council's decision notice.

Application details

Postcode
MK46 4HL
Application type
Householder planning permission
Scale / size
Small
Parish
Lavendon

Planning application dates

Date validated
27 January 2026
Application expires
24 March 2026

Planning decision

Statutory period
56 days

Additional information

Planning Portal ID
PP-14641429
Documents
18

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

Also checked, none recorded (21)

flood storage areas, conservation areas, tree preservation orders, green belt, World Heritage Sites, World Heritage Site buffer zones, registered parks and gardens, registered battlefields, Heritage at Risk entries, nutrient neutrality catchments, national parks, National Landscapes, SSSIs, Special Areas of Conservation, Special Protection Areas, Ramsar sites, ancient woodland, national nature reserves, local nature reserves, heritage coasts and brownfield registers.

A guide only, from official open data; it is not a planning search. Flood zones cover rivers and sea, not surface water.

Data © Crown copyright and others · sources and licences

Contains public sector information from planning.data.gov.uk (MHCLG and local planning authorities), licensed under the Open Government Licence v3.0. © Crown copyright and database right 2026.

© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on 2026-11-03. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.

© Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right 2026.

© Environment Agency copyright and/or database right 2026. All rights reserved. Flood Map for Planning, Open Government Licence v3.0.

Contains Ordnance Survey data © Crown copyright and database right 2026.

Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2026.

Associated applications

  1. 2026
    21 Jan

    Single storey front extension and first floor roof extension to form covered first floor balcony, extension…

    This applicationRefusedFullPLN/2026/0119
  2. 2026
    21 Jan

    Listed building consent for single storey front extension and first floor roof extension to form covered…

    ApprovedListed building consentFiled alongsidePLN/2026/0126

Source: Milton Keynes

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