16 Headley Way, Ash, Guildford, GU12 6GR

1. 5 Jan 2026

   Received by Guildford

2. 16 Jan 2026

   Validated

   Checked as complete and ready for consideration.

3. 3 Feb 2026

   Decision issued: Approve

4. 10 Aug 2026

   Added to PlanIndex

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.

More on lawful development applications in our guide

• 34 Loddon Way, Ash, Guildford, GU12 6NT

  26/P/00130 Submitted 30 Jan 2026 142m away

  81% historically approved · decision due ~27 Mar

  Conversion of garage 13.8m² area to play room.

  Awaiting decision Lawful development

• 1 George Myers Close, Ash, Guildford, GU12 6FW

  26/N/00021 Submitted 6 Mar 2026 205m away

  Non-material amendment to planning permission 23/P/01875 approved 17/01/2024 to increase the depth of the rear dormer and increase the width of all dormers.

  Granted Amendments Loft or dormer 19 docs

• 6 The Oaks, Ash, Guildford, GU12 6FF

  26/T/00105 Submitted 28 Apr 2026 209m away

  Oak (T1) - reduce all round by approximately 2-3 metres to previous reduction points, leaving a retained height of approximately 17-18 metres and radial spread of approximately 6-7 metres; Oak (T2) - reduce all round by approximately 2-2.5 metres to previous reduction points, leaving a retained height of approximately 14-15 metres and radial spread of approximately 4-5 metres; Oak (T3 in decline) - reduce in height by approximately 3 metres leaving a retained height of approximately 14-15 metres and reduce remaining lateral growth by approximately 2-3 metres leaving a retained branch length of 4-6 metres (Tree Preservation Order P1/201/317).

  Granted Trees 6 docs

• 88 Ash Lodge Drive, Ash, Guildford, GU12 6NW

  26/P/00761 Submitted 5 Jun 2026 232m away

  87% historically approved · decision due ~31 Jul

  Proposed single storey rear extension.

  Awaiting decision Extension
  Small domestic

• 78 Ash Lodge Drive, Ash, Guildford, GU12 6NW

  23/P/00186 Submitted 3 Feb 2023 234m away

  Retrospective planning application for the retention of a previously constructed driveway

  Granted Full applications 9 docs

• 65 Ash Lodge Drive, Ash, Guildford, GU12 6NW

  21/P/00979 Submitted 3 May 2021 234m away

  Single storey rear extension with one Lantern light following demolition of conservatory. New SW elevation obscured window.

  Granted Full applications Extension Demolition +1 6 docs
  Small domestic

• 26/P/00423 Granted

  Misty Hill, Catteshall Lane, Unsted, Godalming, GU7 1UP

  Certificate of Lawfulness for existing use to establish whether the use began more than 10 years before the date of this application.The building works (for instance, building or engineering works) were substantially completed more than four years before the date of this application and the change of use to use as a single dwelling house began more than four years before the date of this application is lawful.

  31 Mar 2026 Lawful development
• 26/P/00441 Refused

  26 Harvey Road, Guildford, GU1 3SE

  Certificate of lawfulness for a proposed development to establish whether the formation of a permeable hardstanding within the front curtilage, minor regrading of existing ground levels to accommodate the natural slope of the site and improve visibility, installation of a permeable sub-base and surface treatment to allow for the infiltration of surface water within the site, alteration to the existing boundary treatment (limited to the formation of an opening to facilitate access) and associated edge treatments would be lawful.

  7 Apr 2026 Lawful development
• 26/P/00453 Refused

  Appletons, Greta Bank, West Horsley, Leatherhead, KT24 6HH

  Certificate of lawfulness for existing development to establish whether the erection of a single storey rear extension is now lawful.

  8 Apr 2026 Lawful development
• 26/P/00389 Refused

  1 Hops End, Puttenham, Guildford, GU3 1AE

  Certificate of Lawfulness for a proposed development to establish whether the extension of garden area including demolition of existing boundary wall, erection of new boundary wall, replacement of existing garage style door with bi-fold doors and use of parking area for garden use would be lawful.

  25 Mar 2026 Lawful development
• 26/P/00608 Granted

  Glebe House, Church Lane, Worplesdon, Guildford, GU3 3RU

  Certificate of lawfulness for existing building work to confirm that planning permission 99/P/01819 (Appendix 1) was implemented within the statutory three-year time frame and is therefore extant, allowing the construction of the garage to continue lawfully.

  5 May 2026 Lawful development