12 Suffolk Avenue Leigh-on-sea Essex SS9 3HD

1. 29 Dec 2025

   Received by Southend-on-Sea

2. 9 Apr 2026

   Validated

   Checked as complete and ready for consideration.

3. 4 Jun 2026

   Decision issued: Grant Lawful Dev Certificate (Proposed)

4. 19 Aug 2026

   Added to PlanIndex

Southend-on-Sea granted permission on 4 June 2026, 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.

• Westcliff High School For Girls Kenilworth Gardens Westcliff-On-Sea Essex SS0 0BS

  21/00724/FUL Submitted 9 Apr 2021 150 yards away

  Erect extensions to side and rear of existing Sports Hall and alter elevations

  Granted Full applications Extension 12 docs

• 70 Manchester Drive Leigh-on-sea Essex SS9 3HR

  26/01318/FULH 250 yards away

  86% historically approved

  Erect single storey and part two storey rear extension, alteration to front elevation

  Awaiting decision Extension
  Small domestic

• 90 Manchester Drive Leigh-on-sea Essex SS9 3HR

  26/01019/FULH Submitted 31 Jul 2026 250 yards away

  Erect single storey front extension, erect detached outbuilding to rear, demolish side garage and alter elevations

  Granted New dwelling Extension +1
  Small domestic

• TELECOMMUNICATIONS MAST Footpath Opposite 228 Blenheim Chase Leigh-on-sea Essex

  24/01859/TEL Submitted 22 Nov 2024 250 yards away

  Install 15.8m monopole supporting 6no. antennas and 2no. 300mm dishes, 2no. ground based cabinets and associated ancillary works

  Refused Telecoms

• 47 Manchester Drive Leigh-on-sea Essex SS9 3HP

  24/01249/FULH Submitted 6 Aug 2024 250 yards away

  Erect single storey rear extension and front porch

  Granted Householder Extension
  Small domestic

• 96 Cricketfield Grove Leigh-on-sea Leigh-On-Sea Essex SS9 3EL

  21/01260/FULH Submitted 16 Jun 2021 400 yards away

  Erect two storey side extension and single storey rear extension (Amended Proposal)

  Granted Householder Extension 8 docs
  Small domestic

• 26/01070/CLP Granted

  58 Ronald Park Avenue Westcliff-on-sea Essex SS0 9QN

  Dormer to rear to form habitable accommodation in the loft space and rooflights to front (certificate of lawful development - proposed)

  Received 11 Aug, published by the council 14 Aug 2026 Lawful development
• 26/01065/CLP Granted

  1132 London Road Leigh-on-sea Essex SS9 2AJ

  Dormer to rear and rooflights to front to form habitable accommodation in the loftspace and single storey side/rear extension (certificate of lawful development - proposed)

  Received 10 Aug, published by the council 14 Aug 2026 Lawful development
• 26/01018/CLP Refused

  92 Vardon Drive Leigh-on-sea Essex SS9 3SQ

  Hip to gable roof extension with dormer to rear and rooflights to front to form habitable accommodation in the loftspace (certificate of lawful development - proposed)

  Received 30 Jul, published by the council 8 Aug 2026 Lawful development
• 26/01008/CLP Granted

  61 Flemming Avenue Leigh-on-sea Essex SS9 3AN

  Hip to gable loft conversion, rooflights to front, and dormer to rear with Juliet balcony to create habitable accommodation in roof space (Lawful Development Certificate - Proposed).

  Received 29 Jul, published by the council 8 Aug 2026 Lawful development
• 26/01020/CLP Granted

  66 Marlborough Road Southend-on-sea Essex SS1 2UD

  Single storey side extension (Lawful Development Certificate - Proposed)

  Received 31 Jul, published by the council 8 Aug 2026 Lawful development