Internal alterations and change of use of ground floor of Unit 4 to a residential flat class C3, and internal alterations to allow formation of a self-contained first floor flat Unit 4, internal alterations to Unit 6 to allow formation of a separate ground floor office and part ground and first floor flat and to Unit 5 to allow formation of a separate ground floor office and first floor flat rather than the "live-work" units granted under reference 20/02372/RECON, RECON1 & AMD (granted for re-development of site comprising extensions and elevational alterations to rear building, demolition and replacement/extension of middle building and extensions and elevational alterations to front building, with resultant buildings converted to provide 6 residential flats, 3 live-work units and 3 self-contained offices (Class B1(a)) together with the creation of private amenity areas for each unit, balconies to front building, refuse and cycle storage, widening of crossover, provision of parking turntable and 5 off-street car parking spaces) together with elevational changes

Construction of third storey to existing residential building to create 1 no. one bedroom flat with terrace area and privacy screen. Extension of existing enclosed staircase to third floor (56 day application under Class A, Part 20, Schedule 2 to the General Permitted Development Order, 2015 (as amended) with regards to transport and highways impacts, flooding risk, air traffic and defence assets impacts, contamination risks, external appearance of the building, provision of adequate natural light to habitable rooms, impact on existing and neighbouring residential amenities and impact on protected views).

Conversion and extension of 2x two storey maisonettes at No.20A and no.24A Letchworth Drive to form 4 x 2 Bed (4 Person) self-contained residential units with private amenity space/terrace area and solar panels

Removal of Condition Nos. 15 and 16 of planning permission 22/03337/FULL1 dated 11 January 2023 (for conversion of existing buildings to form a new detached residential dwelling with associated amenity space) to allow permitted development rights under Class A, AA, B, C, or E of Part 1 of Schedule 2 of The Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended) and the erection of upward extension(s) within the curtilage of the dwelling.

Change of use from House of Multiple Occupation (HMO) (Use Class C4) to residential (Use Class C3), together with internal alterations, single storey rear extension and front, rear and side roof dormers to form 4no self-contained residential flats.

Demolition of existing outrigger and erection of two storey rear extension and rear dormer window to create 2 x 2 bed flats and provide new extension to existing shop at ground floor. Change of use class from convenience shop at ground floor E(a) to small offices E(g)(i) with replacement shop front. Rear change use class from residential garage C3 to a small office E(g)(i).

Erection of a two storey roof extension to provide 8 no. flats and associated works including new cycle store and lift shaft. (56 day application under Class A, Part 20, Schedule 2 to the General Permitted Development Order 2015 (as amended) with regards to transport and highways impacts, flooding risk, air traffic and defence assets impacts, contamination risks, external appearance of the building, provision of adequate natural light to habitable rooms and nationally described space standards, impact on residential amenities and protected views)

Construction of roof extension/alteration to No. 121 Elmers End Road to provide enlarged roof space in conjunction with existing flat, construction of part one/part three storey infill extension to No. 123 (with dormer projections to front and rear) to provide ground floor commercial space and three upper storeys of residential accommodation (3 no. flats), partial demolition of No. 125 Elmers End Road and construction of part one/part three storey side/rear extension with accommodation in roof space and front, side and rear dormers to provide enlarged ground floor commercial space and 3 no. flats above. Parking spaces at front and rear and cycle and refuse storage. (OUTLINE APPLICATION - IN RESPECT OF ACCESS, APPEARANCE, LAYOUT AND SCALE OF PROPOSED DEVELOPMENT)

Change of use of the ground floor to a dental practice (Use Class E(e)) and alteration of upper floor layout to a self-contained two bedroom flat (Use Class C3) together with demolition of an existing 2 storey side/rear extension and outbuildings and the construction of a new 2 storey side rear extension, to form a new entrance to the residential accommodation on the upper floors. Erection of single storey storage building to the rear for refuse, plant equipment and cycles. Alterations to front garden in order to provide a new parking space for patients with new vehicular crossover. Boundary alterations, including new gates for vehicular and pedestrian access.

Two storey side extension and conversion of garage to provide additional residential accommodation, removal of chimney and new rooflights with new glazed front porch.