31 Sylvester Road Leiston Suffolk IP16 4BH

1. 19 May 2025

   Received by East Suffolk

2. 21 May 2025

   Validated

   Checked as complete and ready for consideration.

3. 24 Jul 2025

   Decision issued: Application Permitted

4. 22 Aug 2026

   Added to PlanIndex

East Suffolk granted permission on 24 July 2025, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

• 29 Grimsey Road Leiston Suffolk IP16 4BW

  DC/21/4584/FUL Submitted 5 Oct 2021 50 yards away

  Construction of a single storey garden studio

  Granted Full applications 9 docs
  Small domestic

• The Limes 24 King Georges Avenue Leiston Suffolk IP16 4JG

  DC/26/2629/FUL Submitted 23 Jul 2026 100 yards away

  93% historically approved · decision due ~17 Sep

  Conversion of 2 storey dwelling and garage to create 10 bed Aparthotel

  Awaiting decision Full applications 9 docs
  Domestic

• Crown House King Georges Avenue Leiston Suffolk IP16 4JX

  DC/26/1068/DRC Submitted 18 Mar 2026 100 yards away

  Discharge of Condition No. 7 of DC/23/3550/FUL - Details of conversion works to the former Crown Hotel public house to form 11 bed HMO following planning appeal for change of use, APP/X3540/W/3308126 The Crown, King Georges Avenue, Leistion IP10 4JX - Electric vehicle charging points

  Granted Conditions 5 docs

• 38 King Georges Avenue Leiston Suffolk IP16 4JG

  DC/26/2279/CLP Submitted 22 Jun 2026 150 yards away

  Certificate of Lawful Use (Proposed) - Change of use from a Class C3 dwellinghouse to a small House in Multiple Occupation (Class C4). The proposal comprises internal layout alterations only, with no significant external alterations. No machinery or plant will be installed, and no commercial or industrial processes will be undertaken. The property will remain in residential use on a normal 24-hour basis. Associated internal alterations and minor external renovation works only, required in connection with the change of use from a Class C3 dwellinghouse to a Class C4 House in Multiple Occupation (for up to three occupants). No alterations are proposed to the existing access, parking arrangements, hardstanding, boundary treatments, drainage, or the external footprint of the building.

  Granted Lawful development 9 docs
  Domestic

• 29 Seaward Avenue Leiston Suffolk IP16 4BL

  DC/26/1514/CLP Submitted 22 Apr 2026 200 yards away

  Certificate of Lawful use (Proposed) - Erection of a single storey rear extension to the existing semi-detached dwellinghouse. The extension will be located to the rear of the property and will project 2.9m from the original rear wall, as shown on the submitted drawings. It will extend across part of the rear elevation and will have a flat roof with a maximum external height of 2.9m measured from ground level. The development will be constructed using materials of a similar appearance to the existing dwellinghouse. No changes to access, parking, or boundary treatments are proposed.

  Granted Lawful development Extension 7 docs
  Small domestic

• 37 King Georges Avenue Leiston Suffolk IP16 4JX

  DC/26/0636/CLP Submitted 17 Feb 2026 200 yards away

  94% historically approved · decision due ~4 May

  Certificate of Lawful Use (Proposed) - a) Non structural works to inside the main property such as adding a ensuite to downstairs bedroom. Converting garage to habitable space. Connecting two new bathrooms to the existing drains. Upgrading fire protection throughout property including fire doors, grade A fire system, emergency lighting, smoke detectors, push button fire alarms. Upgrading thermal values of property where needed. Upgrading electrical board to comply with regulations working alongside building control. b) Converting detached garage into garden habitable space that includes self contained kitchenette. Ensuite and bedroom space. Upgraded thermal properties, electrical and drain supply. Without changing the look of the structure

  Awaiting decision Lawful development 5 docs

• DC/26/3382/CLP Awaiting decision

  1 Dove Road Reydon Southwold Suffolk IP18 6XJ

  Certificate of Lawful Use (Proposed) - Ground floor rear extension, internal alterations, floor plan redesign and all associated works

  Received 25 Sep, published by the council 4 Oct 2026 Lawful development
• DC/26/3331/CLP Awaiting decision

  61 Claydon Drive Lowestoft Suffolk NR32 3DZ

  Certificate of Lawful use (Proposed) - Construction of a single storey rear extension.

  Received 22 Sep, published by the council 27 Sep 2026 Lawful development
• DC/26/3220/CLE Awaiting decision

  Crown House Low Road Great Glemham Saxmundham Suffolk IP17 2DJ

  Continued use as mixed-use residential dwelling and bed and breakfast accommodation.

  Received 14 Sep, published by the council 4 Oct 2026 Lawful development
• DC/26/3221/CLP Awaiting decision

  21 Southfield Drive Leiston Suffolk IP16 4DP

  Certificate of Lawful Use (Proposed) - Installation of three new roof windows to convert existing loft space

  Received 14 Sep, published by the council 23 Sep 2026 Lawful development
• DC/26/2553/CLP Granted

  10 Waveney Road Beccles Suffolk NR34 9NW

  Certificate of Lawful Use (Proposed) - Garden room. This will be to the rear left of the garden as you look from the front of the house. It is 6870mm wide, 3150mm deep and 2465mm high. It will be used as an office/bar. No new access is required. Ground screws will be used for the base.

  Received 17 Jul, published by the council 2 Aug 2026 Lawful development