Postcode district
Planning applications in MK3
PlanIndex holds 398 planning applications with MK3 postcodes, the earliest from 2019, the newest from October 2026. 86% of clear-cut decisions were approvals.
Applications in MK3
Newest first · page 1 of 8
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PL/26/08620/NMA Awaiting decision
Dagnall House Buckingham Road Bletchley Milton Keynes MK3 5LA
Non material amendment to planning permission 22/03770/AOP (Demolition of the existing Dagnall House and associated outbuildings and erection of up to 34no. dwellings with all matters apart from access reserved) to allow revised access for Conditions 4 & 14
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PLN/2026/2069 Awaiting decision
Employment Land 2 & 3, Newton Leys, Milton Keynes, MK3 5SD
Approval of details required by conditions 4 (Surface Water Drainage Scheme), 5 (Surface Water Run-Off), 21 (External Materials), 22 (Secure Compound) of permission ref. PLN/2025/1868
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PLN/2026/2038 Awaiting decision
ROMANS FIELD SCHOOL, 202-208 SHENLEY ROAD, BLETCHLEY, MILTON KEYNES, MK3 7AW
The construction of a single storey standalone specialist education building, together with associated parking, access and circulation works, hard and soft landscaping, drainage and other ancillary works (Regulation 3 application under the Town and Country Planning General Regulations 1992)
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PLN/2026/1948 Awaiting decision
101 COTTINGHAM GROVE, BLETCHLEY, MILTON KEYNES, MK3 5AG
Proposed erection of single storey rear extension
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PLN/2026/1906 Awaiting decision
68 WHITELEY CRESCENT, BLETCHLEY, MILTON KEYNES, MK3 5DG
Approval of details required by condition 3 (surface water drainage) of permission ref. PLN/2024/2728
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PLN/2026/1918 Awaiting decision
74 Church Green Road, Bletchley, MK3 6BY
Prior approval for the change of use from day nursery ((Class E)(f)) to a dwelling house (Class C3).
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PLN/2026/1863 Awaiting decision
THE OLD RECTORY, CHURCH GREEN ROAD, BLETCHLEY, MILTON KEYNES, MK3 6BJ
Removal of Horse Chestnut (T16) and Sycamore (T24), and removal of dead section of subdominant limb to east over public footpath of Horse Chestnut (T17)
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PLN/2026/1854 Granted
6 ST CATHERINES AVENUE, BLETCHLEY, MILTON KEYNES, MK3 5EE
Certificate of lawfulness for the proposed loft conversion including the installation of 2no. rooflights to the front roof slope and 2no. rooflights to the rear roof slope
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PLN/2026/1843 Awaiting decision
42 CHURCH GREEN ROAD, BLETCHLEY, MILTON KEYNES, MK3 6BL
Erection of a pitched-roof dormer with associated windows, replacement front porch, and installation of additional first-floor windows
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PLN/2026/1811 Awaiting decision
BLETCHLEY HOUSE, BEAVERBROOK COURT, BLETCHLEY, MILTON KEYNES, MK3 7JS
Approval of details required by condition 6 (Surface water drainage) and condition BNG1 (Biodiversity net gain) of permission ref. PLN/2024/2175
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PLN/2026/1790 Awaiting decision
24 SAN ANDRES DRIVE, NEWTON LEYS, MILTON KEYNES, MK3 5GG
Certificate of lawfulness for proposed loft conversion with rooflights to front and rear elevations
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PLN/2026/1776 Awaiting decision
18 LUNDY WALK, NEWTON LEYS, MILTON KEYNES, MK3 5FH
Installation of 2no. air conditioning units and 1no. Air Source Heat Pump unit to existing property
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PLN/2026/1783 Awaiting decision
8 LUDLOW CLOSE, BLETCHLEY, MILTON KEYNES, MK3 6BB
Prior Approval of single storey rear extension, with eaves of 3m metres and maximum height of 3m metres, extending 4.5 metres from the original rear wall
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PLN/2026/1719 Awaiting decision
76 MELROSE AVENUE, BLETCHLEY, MILTON KEYNES, MK3 6PS
Change of Use of existing dwellinghouse (Class C3) to a specialised residential children's care home (Class C2)
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PLN/2026/1706 Awaiting decision
68 SUTHERLAND GROVE, BLETCHLEY, MILTON KEYNES, MK3 7NX
Proposed single storey front and rear extensions with garage conversion
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PLN/2026/1682 Awaiting decision
21 BUTE BRAE, BLETCHLEY, MILTON KEYNES, MK3 7TA
Proposed single story extension at rear, two story extension side, front porch
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PLN/2026/1704 Awaiting decision
14 CRAIGMORE AVENUE, BLETCHLEY, MILTON KEYNES, MK3 6HD
Certificate of lawfulness for proposed erection of a single-storey detached outbuilding in the rear garden to be used as a gym, sauna, and jacuzzi (incidental to the enjoyment of the main dwellinghouse) and front garden alterations to install a new aggregate concrete hardstanding and new brick and steel railing to the front and side fences
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PLN/2026/1676 Awaiting decision
BLETCHLEY PARK, SHERWOOD DRIVE, BLETCHLEY, MILTON KEYNES, MK3 6EB
Listed building consent for extensions, alterations & revised access to Block B
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PLN/2026/1654 Awaiting decision
103 NEWTON ROAD, BLETCHLEY, MILTON KEYNES, MK3 5DH
Subdivision of existing plot and erection of 2-bedroom class C3 dwellinghouse
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PLN/2026/1626 Granted
264 WHADDON WAY, BLETCHLEY, MILTON KEYNES, MK3 7JP
Certificate of lawfulness for the proposed single storey front porch
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PLN/2026/1592 Awaiting decision
BLOCK H THE NATIONAL MUSEUM OF COMPUTING, BLETCHLEY PARK, SHERWOOD DRIVE, BLETCHLEY, MILTON KEYNES, MK3 6EB
Advertisement consent for the display of non-illuminated bronze plaque
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PLN/2026/1560 Granted
25 WHITELEY CRESCENT, BLETCHLEY, MILTON KEYNES, MK3 5DQ
Erection of a two storey side and rear extension, single storey rear extension, and single storey front and side extension
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PLN/2026/1533 Awaiting decision
42 COTTINGHAM GROVE, BLETCHLEY, MILTON KEYNES, MK3 5AX
Proposed single storey rear extensions with roof light & part garage conversion
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PLN/2026/1493 Granted
34 WORDSWORTH DRIVE, BLETCHLEY, MILTON KEYNES, MK3 5HR
Removal of existing rear sun room and erection of a single storey rear/side extension, removal of chimney stack and extension of existing rear dormer, alterations to front and rear windows and doors, and other internal alterations.
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PLN/2026/1447 Granted
14 GRANGE ROAD, BLETCHLEY, MILTON KEYNES, MK3 5HS
Prior Approval of single storey rear extension, with eaves of 2.95 metres and maximum height of 3.20 metres, extending 4.00 metres from the existing rear wall and 4.00 metres from the original rear wall
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PLN/2026/1436 Awaiting decision
54 CHURCH GREEN ROAD, BLETCHLEY, MILTON KEYNES, MK3 6BL
Erection of two single storey side extensions, two single storey rear extensions, rear roof canopy, installation of external fire place and chimney and a single storey front and side extension, front canopy and alterations to existing roof height
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PLN/2026/1442 Withdrawn
101 COTTINGHAM GROVE, BLETCHLEY, MILTON KEYNES, MK3 5AG
Prior Approval of single storey rear extension, with eaves of 3.0 metres and maximum height of 3.0 metres, extending 4.0 metres from the existing rear wall and 4.0 metres from the original rear wall
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PLN/2026/1435 Refused
139 BUCKINGHAM ROAD, BLETCHLEY, MILTON KEYNES, MK3 5JD
Approval of details required by condition 3 (door details) of permission ref. PLN/2025/2035
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PLN/2026/1354 Granted
Employment Land 2 & 3, Newton Leys, Milton Keynes , MK3 5SD
Approval of details required by condition 6 (Surface water drainage) of permission ref. PLN/2024/2749
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PLN/2026/1323 Awaiting decision
ROYAL OAK CLUB, PORCHESTER CLOSE, BLETCHLEY, MILTON KEYNES, MK3 7DF
Erection of a conservatory within the rear garden (retrospective)
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PLN/2026/1307 Awaiting decision
BLETCHLEY PARK, SHERWOOD DRIVE, BLETCHLEY, MILTON KEYNES, MK3 6EB
Installation of ASHP and associated equipment across two locations (The Mansion/Hut 4 and Block E) and the removal of the existing oil boilers and oil storage tanks
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PLN/2026/1302 Granted
18 BYRON CLOSE, BLETCHLEY, MILTON KEYNES, MK3 5BD
Erection of single-storey side and rear extension
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PLN/2026/1368 Granted
BLETCHLEY PARK, SHERWOOD DRIVE, BLETCHLEY, MILTON KEYNES, MK3 6EB
Listed building consent for installation of ASHP and associated equipment across two locations (The Mansion/Hut 4 and Block E) and the removal of the existing oil boilers and oil storage tanks
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PLN/2026/1309 Granted
BLETCHLEY PARK, WILTON AVENUE, BLETCHLEY, MILTON KEYNES, MK3 6EB
The crown lift of secondary branches up to 25mm diameter to 2.5m above ground of Oak Tree (T29) protected by Milton Keynes Council Tree Preservation Order no. PS/540/15/139
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PLN/2026/1306 Granted
THE MANSION, BLETCHLEY PARK, SHERWOOD DRIVE, BLETCHLEY, MILTON KEYNES, MK3 6EB
The crown lift to 2m above ground over footpath of Cedar (T102) protected by Milton Keynes Council Tree Preservation Order no. PS/540/15/139 and the crown lift to 4m above ground along boundary by parking bays/kerbs and prune back by 2m from street lights of mixed trees in Group E protected by Milton Keynes Council Tree Preservation Order no. PS/540/15/136
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PLN/2026/1278 Awaiting decision
LAND TO REAR OF 131 CHURCH GREEN ROAD, BLETCHLEY, MILTON KEYNES, MK3 6DE
Proposed erection of a new dwelling with associated access and parking
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PL/26/04747/NMA Awaiting decision
New Leys Buckingham Road Bletchley Milton Keynes MK3 5LA
Non-material amendment to planning permission 24/02481/ADP (Submission of reserved matters (access, landscaping, appearance, scale and layout) for Parcel 1B pursuant to Outline Planning Permission 15/00314/AOP comprising the construction of 234 dwellings with associated parking, garaging, open space and balancing ponds for surface water attenuation and infrastructure) to allow for amendment to parking layout to incorporate extra parking spaces for plots 317 and 320; moving tree at front of plot 321 to front of plot 315 with change to plant species; and reduction of height of brick piers and railings beside plot 321
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PLN/2026/1196 Granted
BLETCHLEY PARK, SHERWOOD DRIVE, BLETCHLEY, MILTON KEYNES, MK3 6EB
To crown lift lower branches/limbs overhanging road to 3.5m above ground of 1x Copper Beech tree (T83) protected by Milton Keynes Council Tree Preservation Order PS/540/15/139
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PLN/2026/1126 Split decision
BLETCHLEY HOUSE, BEAVERBROOK COURT, BLETCHLEY, MILTON KEYNES, MK3 7JS
Approval of details required by conditions 4 (external lighting strategy), 6 (surface water drainage scheme), 7 (faunal enhancement plan) and 8 (Bee Orchid translocation strategy) of permission ref. PLN/2024/2175
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PLN/2026/1075 Awaiting decision
REDHOUSE, TATTENHOE LANE, BLETCHLEY, MILTON KEYNES, MK3 7RB
Outline application (matters of layout and scale to be considered, with matters of access, appearance and landscaping reserved) for erection of two storey extensions, single storey extension and balcony, pergola and garage/ancillary block
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PLN/2026/1191 Granted
THE MANSION, BLETCHLEY PARK, SHERWOOD DRIVE, BLETCHLEY, MILTON KEYNES, MK3 6EB
The crown lifting to 2m above ground level of Crab Apple (E) and Cherry trees (B, C & D), the crown reduction by 2m back from building of Willow (A), and the coppicing to ground level of self set trees and regrowth from old stump of Sycamores (G27)
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PLN/2026/1042 Granted
SITE TO REAR OF 75 FORFAR DRIVE, BLETCHLEY, MILTON KEYNES, MK3 7LX
Certificate of lawfulness for the confirmation that permission ref. 18/02557/FUL has been commenced by reason of the physical excavation of trenches and the installation of a sub-surface foul water drainage run
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PLN/2026/1035 Granted
102 NEWTON ROAD, BLETCHLEY, MILTON KEYNES, MK3 5BY
Proposed alterations to external materials
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PLN/2026/1003 Granted
BUCKINGHAM HOUSE, BUCKINGHAM ROAD, BLETCHLEY, MILTON KEYNES, MK3 5LD
Approval of details required by condition 27 (Gas assessment) of permission ref. PLN/2025/0702
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PLN/2026/1005 Granted
Dagnall House, Buckingham Road, Newton Longville, MK3 5LA
Construction of access from Buckingham Road to a 34-dwelling housing site approved by Buckinghamshire County Council under ref. 22/03770/AOP (access previously approved by MKCC ref. 22/02682/OUT)
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PLN/2026/0974 Granted
11 HIGHFIELD CLOSE, BLETCHLEY, MILTON KEYNES, MK3 6JH
Removal of existing conservatory and erection of a single storey rear extension and replacement garage
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PLN/2026/0955 Granted
14 CRAIGMORE AVENUE, BLETCHLEY, MILTON KEYNES, MK3 6HD
Certificate of lawfulness for the proposed single storey rear extension with roof lights. New ground floor side elevation window. Front porch extension with new front door. Conversion of the garage into living space with window to replace the shutter
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PLN/2026/0948 Refused
Employment Land 2 & 3, Newton Leys, Milton Keynes , MK3 5SD
Approval of details required by the Statutory Biodiversity Net Gain Condition relating to permission ref. PLN/2025/1868 (Variation of condition 1 (Approved plans) seeking to amend the levels of affordable housing provision from 31% to 100% (an all affordable home scheme) (relating to permission ref. PLN/2024/2749 for the Erection of 113 Residential Dwellings With Access, Parking, Landscaping and Associated Works and the Construction of a Store Ancillary to Taylor Wimpey Offices)
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PLN/2026/0947 Refused
Employment Land 2 & 3, Newton Leys, Milton Keynes , MK3 5SD
Approval of details required by condition 6 (maintenance of surface water drainage system) of permission ref. PLN/2025/1868
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PLN/2026/0937 Granted
264 WHADDON WAY, BLETCHLEY, MILTON KEYNES, MK3 7JP
Erection of single storey front, side and rear extensions
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