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Planning application

PL/26/0645

146 THIRLMERE AVENUE, TILEHURST, READING, RG30 6XJ

Granted Reading Certificate of Lawfulness - Proposed Use or Development

Proposal

Proposed single storey rear extension.

As published by the council, reference PL/26/0645

Timeline

Dates from the published record

  1. 15 May 2026

    Received by Reading

  2. 17 Jul 2026

    Decision issued: Approve

  3. 27 Jul 2026

    Added to PlanIndex

What a grant of permission means

The process from here

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.

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

  • PL/26/0975 Awaiting decision

    44 POTTERY ROAD, TILEHURST, READING, RG30 6BQ

    Loft conversion to create one bedroom and ensuite bathroom, along, consisting of two rooflights to front elevation and a new flat roof dormer to rear elevation.

    22 Jul 2026 342m away Lawful development
  • PL/25/1644 Awaiting decision

    THE RESTORATION PH, 928 OXFORD ROAD, TILEHURST, READING, RG30 6TJ

    Application to retain and extend the temporary permission to use available land as a hand carwash facility up to 18months

    17 Nov 2025 381m away Full applications
  • PL/24/1185 Granted

    220 NORCOT ROAD, TILEHURST, READING, RG30 6AE

    Construction of a two storey side extension and a front porch. (amended)

    10 Sep 2024 393m away Householder
  • 220745 Granted

    206 Norcot Road Tilehurst Reading RG30 6AE

    Two storey side extension and single detached garage, extension to existing dropped kerb (amended description)

    20 May 2022 393m away Householder
  • 230871 Withdrawn

    184 Norcot Road Tilehurst Reading RG30 6BN

    Bungalow hip to gable with front and rear dormers

    21 Jun 2023 393m away Householder
  • 210843 Granted

    15 Birch Avenue Tilehurst Reading RG30 6BL

    Proposed single storey side extension and internal alterations.

    24 May 2021 407m away Householder

In Reading

  • PL/26/0726 Withdrawn

    5 PANTILE CLOSE, TILEHURST, READING, RG30 4HX

    Single-storey side extension

    2 Jun 2026 Lawful development
  • PL/26/1006 Awaiting decision

    27 NEWBERY CLOSE, TILEHURST, READING, RG31 6JN

    Replace existing rear ground floor conservatory with a new ground floor flat roof rear extension.

    27 Jul 2026 Lawful development
  • PL/26/0737 Granted

    18 MONCK COURT, SOUTHCOTE ROAD, READING, RG30 2AF

    Proposed use as supported accommodation for 1 to 2 young people aged 16 to 17 with floating/visiting support (Class C2) (amended description)

    4 Jun 2026 Lawful development
  • PL/26/0992 Awaiting decision

    11 KNOWLE CLOSE, CAVERSHAM, READING, RG4 7LH

    Proposed single storey extension

    24 Jul 2026 Lawful development
  • PL/26/0991 Awaiting decision

    8 BARRINGTON WAY, READING, RG1 6EG

    Conversion of garage to domestic use

    24 Jul 2026 Lawful development