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Planning application

APP/26/00389

Langthorne House, 57 Langstone Road, Havant, PO9 1RB

Awaiting decision Havant Lawful development: Proposed use

Proposal

Lawful Development Certificate for proposed single storey flat roof rear extension with roof light and rear French doors.

As published by the council, reference APP/26/00389

Timeline

Dates from the published record

  1. 1 Jun 2026

    Received by Havant

  2. 16 Jun 2026

    Validated

    Checked as complete and ready for consideration.

  3. 26 Jul 2026

    Added to PlanIndex

  4. Decision

    Awaiting decision

    The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.

What happens while it is decided

The process from here

This application is with Havant for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

About lawful development applications

How this application type works

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

Nearby applications

Within 500 metres

  • APP/25/00914 Granted

    Mill House, 8A Langstone Road, Havant, PO9 1RE

    1No Copper Beech (T19). Reduce overall crown height by 2 metres, trim to previous pruning points. Reduce north lateral spread by 3 metres back to original pruning points, east lateral spread by 2 metres to original pruning points, south lateral spread by 3 metres to original pruning points and north west lateral spread by 2.5 metres to original pruning points. Subject to TPO 1060.

    4 Nov 2025 157m away Trees
  • APP/25/01048 Granted

    3 Southbrook Close, Havant, PO9 1RW

    Part single and part two storey rear extension following demolition of conservatory, alterations to fenestration and materials, new front dormer and alterations to existing dormers

    24 Dec 2025 281m away Householder
  • APP/26/00156 Granted

    25 Langbrook Close, Havant, PO9 1RS

    Single storey rear extension, two storey side extension, rear dormer extension, removal of existing chimney stack, and conversion of garage to living accommodation.

    6 Mar 2026 328m away Householder
  • APP/25/00997 Granted

    Mulberry, 3B Mill Lane, Langstone, Havant, PO9 1RX

    1 No. Ash (T2) - fell to ground level as it is suffering from ash die back. 1 No. Cypress (Macrocarpa) (T3) - remove lowest limb in order to crown lift to 5m over highway. Trees within the Mill Lane Conservation Area.

    3 Dec 2025 354m away Trees
  • APP/25/00993 Granted

    Mulberry, 3B Mill Lane, Langstone, Havant, PO9 1RX

    Mulberry Tree (T1) - reduce two lowest western pointing lateral limbs by around 2.5m leaving an overall spread of 7m, subject to TPO 0981.

    3 Dec 2025 354m away Trees
  • APP/25/00671 Granted

    Tulip Tree House, Mill Lane, Langstone, Havant, PO9 1RX

    Crown reduce 6No. Pyrus (T1, T2, T3, T9, T10 and T11) by 0.5metres all over; crown reduce 1No. White beam (T4) by 0.5m all over; trim top and sides by 0.5m 1No. Yew hedge (T5); crown reduce 1No. Prunus (T6) by 0.5m all over; crown lift 2No. Silver birch (T7 & T8) to 3 metres; crown reduce 1No. Cherry Plum (T12) by 1m; crown reduce 1No. Willow (T13) by 0.5m all over and crown reduce 1 No. Robinia (T14) by 0.5 meters all over. All reductions are to previous pruning points. Within Mill Lane Conservation Area.

    26 Aug 2025 354m away Trees

In Havant

  • APP/26/00534 Awaiting decision

    17 Yew Tree Avenue, Cowplain, Waterlooville, PO8 8AH

    Application for Lawful Development Certificate for proposed alterations to existing conservatory to provide a flat roof.

    21 Jul 2026 Lawful development
  • APP/26/00509 Awaiting decision

    1A St Hermans Road, Hayling Island, PO11 9NA

    Application for lawful development certificate for proposed conversion of roof space into habitable room including rear roof dormer and 2no. rooflights.

    13 Jul 2026 Lawful development
  • APP/26/00498 Awaiting decision

    15 London Road, Waterlooville, PO7 7AL

    Lawful Development Certificate for the proposed removal of a rear conservatory extension with timber framed windows and door. Alterations to doors and windows including the installation of rear bi-folding doors.

    9 Jul 2026 Lawful development
  • APP/26/00502 Awaiting decision

    11 Markway Close, Emsworth, PO10 7NX

    Lawful development certificate for proposed loft conversion and side extension

    9 Jul 2026 Lawful development
  • APP/26/00514 Awaiting decision

    140A Parkhouse Farm Way, Havant, PO9 4DP

    Lawful Development Certificate for proposed siting of caravan for ancillary use to dwellinghouse.

    9 Jul 2026 Lawful development