Alpha House 100 Borough High Street London Southwark SE1

This site has had 2 applications since 2023: 2 approved, 0 refused.

• 23/AP/2641 Granted

  Alpha House 100 Borough High Street London Southwark SE1

  Redevelopment of existing office building to provide a new office development (Class E) between 4-8 storeys with roof terraces, retention of existing basement with lowered depth, new ground floor commercial uses (Class E), servicing yard, cycle parking and refuse storage and associated works.

  Decided 1 Oct 2025 Full applications

1. 19 Dec 2025

   Received by Southwark

2. 22 Dec 2025

   Validated

   Checked as complete and ready for consideration.

3. 21 Jan 2026

   Decision issued: Certificate of Lawfulness Prop- GRANTED

4. 10 Aug 2026

   Added to PlanIndex

• 23/AP/2641 Granted

  Alpha House 100 Borough High Street London Southwark SE1

  Redevelopment of existing office building to provide a new office development (Class E) between 4-8 storeys with roof terraces, retention of existing basement with lowered depth, new ground floor commercial uses (Class E), servicing yard, cycle parking and refuse storage and associated works.

  Decided 1 Oct 2025 Full applications

Southwark granted permission on 21 January 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.

• Alpha House 100 Borough High Street London Southwark SE1

  23/AP/2641 Submitted 6 Sep 2023 50 yards away

  Redevelopment of existing office building to provide a new office development (Class E) between 4-8 storeys with roof terraces, retention of existing basement with lowered depth, new ground floor commercial uses (Class E), servicing yard, cycle parking and refuse storage and associated works.

  Granted Full applications 117 docs
  Major scheme

• 106-114 Borough High Street London Southwark SE1 1LB

  22/AP/3613 Submitted 18 Oct 2022 50 yards away

  Alterations to the brickwork/limestone cladding to east elevation, new louvered door to bin store, re-handing of existing fire exit door, alterations to existing facade.

  Granted Full applications 13 docs

• 8 Union Street London Southwark SE1 1SZ

  25/AP/3734 Submitted 18 Dec 2025 50 yards away

  Replacement windows and doors throughout, and a side entrance door to provide level access via portable lifting platform.

  Granted Full applications Windows or glazing 27 docs

• 116-118 Borough High Street London Southwark SE1 1LB

  23/AP/2991 Submitted 25 Oct 2023 50 yards away

  Alterations to building entrance by reducing the recessed entry space and replacing the door, fanlight, post boxes and dry riser outlet.

  Granted Full applications 16 docs

• 10 - 18 Union Street London Southwark SE1 1SZ

  26/AP/1894 Submitted 30 Jun 2026 50 yards away

  Replacement windows and doors to Union Street (South elevation).

  Granted Full applications Windows or glazing 20 docs

• Marlborough Sports Garden 11 - 25 Union Street London Southwark SE1 1SD

  25/AP/3462 Submitted 27 Nov 2025 50 yards away

  Discharge of Condition 3 (Operational Management Plan) pursuant to 22/AP/2071 [Redevelopment of site for the construction of two storey Cafe (Use Class E.b) with ancillary facilities, erection of roof apparatus (PV panels and plant), renewal of existing game areas, provision of cycle parking and associated landscaping for outdoor games, viewing terraces and planting and associated highway works with pedestrian ramp access].

  Granted Conditions 5 docs

• 26/AP/2574 Awaiting decision

  23 Alberta Street London Southwark SE17 3SF

  Certificate of lawfulness (proposed) for construction of a rear dormer and the installation of 1x rooflight to the front roofslope.

  Received 1 Sep, published by the council 8 Sep 2026 Lawful development
• 26/AP/2509 Awaiting decision

  Newington Gardens Harper Road London Southwark SE1

  Certificate of Lawfulness (proposed) for improvement works to the playground at Newington Gardens to include the removal of current playground equipment and installation of new accessible equipment.

  Received 21 Aug, published by the council 7 Sep 2026 Lawful development
• 26/AP/1673 Granted

  Flat 67 Benbow House 24 New Globe Walk London Southwark SE1 9DS

  Certificate of Lawful Development to replace existing external doors with new thermally improved doors

  Received 11 Jun, published by the council 25 Jul 2026 Lawful development
• 26/AP/1909 Granted

  6 Ethnard Road London Southwark SE15 1RU

  Certificate of lawfulness (proposed) for a loft conversion with rear dormer

  Received 30 Jun, published by the council 25 Jul 2026 Lawful development
• 26/AP/2486 Awaiting decision

  84 Croxted Road London Southwark SE21 8NP

  Certificate of lawfulness (proposed) for the formation of a moveable structure (as defined under the Caravan Site Act) that can be separated into 2 sections and removed from the rear garden by crane. Refer to the following drawings: 318 SP 00 (PD) 318 SP 01 (PD) 318 SP 101 (PD) 318 GS 01 (PD) 318 GS 02 (PD)

  Received 19 Aug, published by the council 20 Aug 2026 Lawful development