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Planning agent

SEP Design

A design practice registered in York. 16 planning applications on PlanIndex across 5 councils . On the register from 2019 to 2026.

13 granted and 1 refused of 14 decided applications in our index. A record of decisions already made, not a forecast of the next one.

Where they work

What they file

  1. Full applications50%
  2. Prior approval36%
  3. Householder14%

Company record

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

Registered name
SEP DESIGN LTD
Company number
14485702
Status
Active
Incorporated
15 November 2022
Registered in
York

Track record

The 10 most recent applications naming this firm

  • P/20866/003 Granted

    172, St Georges Crescent, Slough, SL1 5PD

    Lawful Development Certificate for a proposed hip to gable loft conversion to cr

    Decided 1 Sep 2026
  • 262367PALHE Awaiting decision

    36 Princes Avenue Greenford UB6 9BT

    Single storey rear extension (max 6m deep and max 3.1m high) (42 Days Prior Approval Notification Process)

    Submitted 12 Jun 2026
  • 262367PALHE Granted

    36 Princes Avenue Greenford UB6 9BT

    Single storey rear extension (max 6m deep and max 3.1m high) (42 Days Prior Approval Notification Process)

    Decided 27 Jul 2026 Prior approval
  • P/20866/002 Granted

    172, St Georges Crescent, Slough, SL1 5PD

    Construction of a single storey rear extension

    Decided 10 Jun 2026 Full applications
  • 260992PALHE Granted

    122 Kings Avenue Greenford UB6 9DD

    Single storey (max 6.00m deep and max 2.79 high) rear extension (42 Days Prior Approval Notification Process)

    Decided 15 Apr 2026 Prior approval
  • 260992PALHE Granted

    122 Kings Avenue Greenford UB6 9DD

    Single storey (max 6.00m deep and max 2.79 high) rear extension (42 Days Prior Approval Notification Process)

    Decided 15 Apr 2026 Prior approval
  • 24/01632/HOU Granted

    107 Crowborough Lane, Kents Hill, Milton Keynes, MK7 6JN

    Erection of single storey rear extension

    Decided 14 Nov 2024 Householder
  • 23/00105/HOU Withdrawn

    4 Kensal Green Monkston Park Milton Keynes MK10 9QE

    Raise the ridge height of main roof at the rear elevation gable section, new side facing gable-style dormers and new roof lights. The erection of a single storey rear extension with balcony over. New first floor double doors to replace window. Removal of side entrance door.

    Decided 7 Jun 2023 Householder
  • 23/00044/FULHH Refused

    7 Plantation Road Luton LU3 3DJ

    Erection of two storey rear and single storey side extension and alterations to fenestrations after demolition of outbuilding (Resubmission).

    Decided 21 Mar 2023 Full applications
  • 20/01802/FUL Granted

    1 Kinross Drive Bletchley Milton Keynes MK3 7UE

    Part two part single storey front and single storey rear extension

    Decided 18 Sep 2020 Full applications

6 more applications on record

Trade members see everything this firm has filed, filter it by council and outcome, and get an email the day it files again.

See the full track record

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