Phase 1 of a phased development. This phase of development will include,the removal of existing single storey side extension, provision of new side and rear 2-storey extension, partial conversion of the attic to provide a study, and external alterations at 32 Castilla Park. No. 32, which will remain a 3-bed semi-detached house, will extend to c. 135sqm (an increase in floorspace of c. 47 sqm). A new vehicular and pedestrian access from Castilla Park. This phase of the development will also include for all associated site development works, including internal access roads, drainage and hard & soft landscaping (including boundary treatments), off-street car parking, bin storage, and all other ancillary works. The next phase of the development will include. Construction of 3 no. dwellings comprising, 1 no. three storey (comprising 2 storey plus dormer) 5-bed semi-detached house (c. 237 sqm) and 1 no. three storey (comprising 2 storey plus dormer) 4-bed semi-detached house (c. 198 sqm) to the rear of the existing house at 32 Castilla Park and 1 no. 2 storey 2-bed detached dwelling (c. 130sqm) to the rear of the existing house at 81 Blackheath Park.