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Planning agent

Mailen Design

A design practice registered in London. 13 planning applications on PlanIndex across 8 councils . On the register from 2016 to 2026.

10 granted and 1 refused of 11 decided applications in our index. A record of decisions already made, not a forecast of the next one.

Where they work

  1. West Oxfordshire3
  2. Northumberland National Park3
  3. Dacorum2
  4. Northumberland1
  5. Manchester1
  6. Swale1
  7. South Oxfordshire1
  8. Vale of White Horse1

What they file

  1. Full applications38%
  2. Conditions23%
  3. Advertising8%
  4. Heritage and listed buildings8%
  5. Householder8%

Company record

From Companies House. Company information only; we never show personal contact details.

Registered name
MAILEN DESIGN LIMITED
Company number
07603503
Status
Active
Incorporated
13 April 2011
Registered in
London

Track record

The 10 most recent applications naming this firm

  • 26/01560/LBC Granted

    Kielder Castle Castle Drive Kielder Northumberland NE48 1EQ

    Listed Building Consent for installation of a lightning protection system including - stainless steel rod and ESE device to the highest point of the building, two 8mm PVC sheathed conductors to match the colour of the building's stone and associated earth mats to ground the system.

    Decided 5 Jun 2026 Heritage and listed buildings
  • 26/00603/DISCON Awaiting decision

    Kielder Castle Castle Drive Kielder Northumberland NE48 1EQ

    Discharge of Condition 3 (Materials) on approved application 23/00882/LBC

    Submitted 19 Feb 2026 Conditions
  • 25/02179/CLASSR Granted

    Land And Buildings South West Of University Farm House Lew Bampton Oxfordshire

    Change of use of an existing agricultural building to commercial use (Class E).

    Decided 6 Nov 2025 Other
  • 25/02178/PN56 Refused

    Land And Buildings South West Of University Farm House Lew Bampton Oxfordshire

    Demolition of barns in poor condition and conversion of 3 agricultural buildings to create eight dwelling houses with associated building operations.

    Decided 3 Nov 2025 Prior approval
  • 24/01382/FUL Granted

    Fulwell Farm House Fulwell Chipping Norton Oxfordshire OX7 4EN

    Refurbishment works to two existing dwellings to include reconfiguration and extension to provide a single detached dwelling.

    Decided 9 Aug 2024 Full applications
  • P23/V0308/HH Granted

    Thistledome, Grove Road, Harwell, Didcot, OX11 0EG

    Single storey extension with pitched roof to rear of existing house.

    Decided 4 Apr 2023 Householder
  • P22/S4604/FUL Granted

    The Studio Lodge, Manor Farm, Main Street, West Hagbourne, OX11 0ND

    Erection of self build dwellinghouse (to replace the existing lawful mobile home) (amended plans received 6 February 2023 with amended red line plan, alteration to screen the north wall by lowering the building and raising the ground, and revised biodiversity metric assessment).

    Decided 7 Mar 2023 Full applications
  • 19/02860/DRC Granted

    Cherry Dell Alderton Drive Little Gaddesden Berkhamsted Hertfordshire HP4 1NA

    Details required by Condition 3 (hard and soft landscaping) attached to Planning Permisson 4/00574/18/FUL - demolition of exisiting dwelling, garage and outbuildings. construction of replacement dwelling.

    Decided 3 Jan 2020 Conditions
  • 19/04459/FUL Granted

    Kielder Castle Castle Drive Kielder NE48 1EQ

    Refurbishment of Kielder Castle - including demolition and rebuilding of the existing east wing courtyard extension.

    Decided 10 Mar 2020 Full applications
  • 19/02750/DRC Granted

    Cherry Dell Alderton Drive Little Gaddesden Berkhamsted Hertfordshire HP4 1NA

    Details as requested by Condition 5 (materials) attached to planning permission 4/00574/18/FUL (Demolition of existing dwelling, garage and outbuildings. Construction of replacement dwelling.)

    Decided 20 Nov 2019 Conditions

3 more applications on record

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From council registers and Companies House. Counts describe the records we hold, not a firm's complete history. Request a correction or removal.