Demolition of existing detached garage to rear of property. Demolition of existing two storey bay window at the rear of the property and installation of new bi-folding windows at first floor level. Construction of a single storey side and rear extension. New dormer extension to rear roof pitch and loft conversion at second floor level. New conservation roof lights to side roof pitches over main body of house. External refurbishment and landscaping works to the front and rear gardens and side passage.

Variation of Conditions 1 (Approved Plans) and Condition 16 (Permitted Uses) of planning permission 21/AP/2001 dated 02/03/2023 for 'Demolition of rear infill and atrium roof and construction of new 6-storey rear extension connecting to a 2-storey roof extension on the western section of the building; a new atrium roof on the eastern section; roof terraces, landscaping and public realm works and general works of enhancement to the listed building in connection with the continued use of the building within Class E. (LBC reference 21/AP/2002).' for the following amendments: - Conversion of the 5th floor restaurant into office use - Creation of one restaurant at ground floor (rather than two separate restaurants) - Removal of restaurant lift core - Enclosure of the west stair core - Enlargement of central core - Installation of rear window railing protection - Changes to the atrium roof structure - Amendments to the courtyard including substation and switchroom - Delivery of affordable workspace given the increase in office floorspace - Re-wording of Condition 16 to reflect the amended amount of office floorspace

Variation of Condition 2 'Approved Plans' of planning permission ref. no. 17/AP/4124: Change of use from Class D1 with an ancillary Class B1 office function to Class C3 for residential use, including conversion and part demolition of existing main house to enable the creation of x5 new residential units and the construction of x4 new residential units in the rear garden with x9 off street parking spaces, associated communal and private landscaped areas. Variation sought: This application seeks to vary the approved plans condition to add a phasing plan for CIL phasing purposes, in accordance with the CIL Regulations 2010 (As Amended) to ensure the site is deliverable.

Details of Condition 3 - Archaeological building record Level 3 (part 2) as required by LBS application 17/AP/4124 granted 30/07/2021 (Change of use from Class D1 with an ancillary Class B1 office function to Class C3 for residential use, including conversion and part demolition of existing main house to enable the creation of 5x new residential units and the construction of 4x new residential units in the rear garden with 9x off street parking spaces, associated communal and private landscaped areas.)

Non-material amendment pursuant to 16/AP/4018 [Redevelopment of the site to provide four buildings to deliver 168 residential dwellings (Class C3) and flexible retail floor space (247m2) of flexible A1/A3/A4; The works include the conversion and extension of Sumner House (Block A) from office use (Class B1-c to provide 44 no flats and 4 no townhouses and partial demolition of boundary wall; the erection of a part 4, part 6 storey block to provide 39 no flats on Sumner Avenue (Block B); part 4(Block B); a part four, part 6 storey building to provide 72 no flats on Jocelyn Street (Block C); and a four storey block providing 9 flats on Melon Road (Block D), with 247m2 of flexible A1/A3/A4 use at ground floor level together with car parking, hard and soft landscaping, and other associated works incidental to the development] for the construction of a fire safety maintainance enclosure.

Certificate of Lawfulness (existing) to verify implementation of works pursuant to 17/AP/4124 [Change of use from Class D1 with an ancillary Class B1 office function to Class C3 for residential use, including conversion and part demolition of existing main house to enable the creation of x5 new residential units and the construction of x4 new residential units in the rear garden with x9 off street parking spaces, associated communal and private landscaped areas].

Non material amendment of planning permission ref. no. 17/AP/4124: Change of use from Class D1 with an ancillary Class B1 office function to Class C3 for residential use, including conversion and part demolition of existing main house to enable the creation of x5 new residential units and the construction of x4 new residential units in the rear garden with x9 off street parking spaces, associated communal and private landscaped areas. NMA sought: to enable the development to be undertaken in phases.

Erection of a front pitched dormer and rear dormer, demolition of existing conservatory and construction of ground floor rear extension with external alterations including new windows and door casements and conversion of existing outbuilding into residential annex.

Non material amendment of planning permission ref. no. 17/AP/4124: Change of use from Class D1 with an ancillary Class B1 office function to Class C3 for residential use, including conversion and part demolition of existing main house to enable the creation of x5 new residential units and the construction of x4 new residential units in the rear garden with x9 off street parking spaces, associated communal and private landscaped areas. NMA sought: This non-material amendment seeks to vary Condition 2 to include for the 5no. demolition drawings.

Details of Condition 4 'Landscaping Scheme' pursuant to planning permission ref. no. 22/AP/3819: Demolition of existing garage and construction of a two storey side extension with a pitched roof, single storey rear extension with storage space beneath, the conversion of the rear hipped roof form into a gable roof, the installation of one conservation style rooflight on the front roof slope and two on the south-western roof slope, and a front porch cover above the existing front door, and the reconfiguration of the existing rear garden decking and steps.