Local Specialist · every figure on this page is a count of real approved planning applications, drawn from public planning records.
Happy Building describes itself as fixed-price residential design & build projects across South London & Surrey. The site mentions services or topics including planning applications, planning application, building regulations, loft conversion, loft conversions and coverage references including London, South London, Croydon, Sutton. Published pricing or fees found: yes.
Drawn from the practice's own public website, last checked 4 July 2026. Logos and descriptions are drawn from practices' own public websites, and any practice can have theirs corrected or removed on request via the form on our homepage.
| Council | Approvals |
|---|---|
| Sutton Council | 40 |
| Royal Borough of Kingston upon Thames Council | 6 |
| Croydon Council | 3 |
| Merton Council | 3 |
| Wandsworth Council | 2 |
| Date | Council | Type | Address | Proposal |
|---|---|---|---|---|
| 2026-06-18 | Sutton Council | Extension | 8 Lumley Gardens Cheam SM3 8NW | Erection of a single storey detached outbuilding to rear garden land. |
| 2026-06-04 | Sutton Council | Extension | 32 Beresford Road Cheam SM2 6ER | Erection of single storey rear extension including removal of a chimney stack. Alterations to the fenestrations. Conversion of garage to a habitable room with associated external works. |
| 2026-04-30 | Sutton Council | Extension | 48 Mount Park Carshalton SM5 4PS | Erection of a single storey side extension, formation of a front entrance porch, steps to rear and alteration to fenestrations. |
| 2026-04-30 | Sutton Council | Loft Conversion | 48 Mount Park Carshalton SM5 4PS | Conversion of loft space involving alterations to existing roofline, a dormer extension at rear, rooflights to front roofslope and alterations to fenestrations. |
| 2026-04-02 | Sutton Council | Extension | 11 Glebe Road Cheam SM2 7NS | Erection of a single storey side extension with a partial conversion of the garage to a habitable room with associated exteernal works. Provision of a new roof to the existing porch. |