282 London Road St Albans Hertfordshire AL1 1HY

1. 1.The prior approval of the Local Planning Authority is required and refused because the proposed single storey rear extension would not comply with the conditions and limitations of Class A, Part 1, Schedule 2 of the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended). The property has previously been enlarged by way of a two storey rear extension approved under planning permission reference 5/1989/1375. As the proposed extension would be physically attached to that extension, the resulting enlarged part would exceed 4 metres in height, contrary to paragraph A.1(g)(ii). Furthermore, the enlarged part would comprise more than a single storey and extend beyond the rear wall of the original dwellinghouse by more than 3 metres, contrary to paragraph A.1(h)(i). In addition, the enlarged part would be within 2 metres of the boundary of the curtilage of the dwellinghouse and would have eaves exceeding 3 metres in height, contrary to paragraph A.1(i). The enlarged part would also extend beyond a wall forming a side elevation of the original dwellinghouse, exceed 4 metres in height, comprise more than one storey and have a width greater than half the width of the original dwellinghouse, contrary to paragraphs A.1(j)(i), A.1(j)(ii) and A.1(j)(iii). Consequently, the total enlargement, being the proposed extension together with the existing enlargements to which it would be joined, would exceed the limitations set out within paragraphs A.1(g), A.1(h), A.1(i) and A.1(j), contrary to paragraph A.1(ja) of this Class. Formal planning permission would therefore be required.

From the council's decision notice.

Postcode

AL1 1HY

Date validated

30 July 2026

Consultation end

24 August 2026

Target decision date

24 August 2026

Applicant

Private applicant

Agent

Curio Architects

Architect profile

CURIO ARCHITECTS LIMITED

Case officer

Ola Ope