Question 1

Can I build a large rear extension on my detached house in Bromley without planning?

Accepted Answer

Permitted development allows single-storey rear extensions up to 4 m deep on detached houses (3 m on attached) without planning permission, subject to neighbour notification under the Neighbour Consultation Scheme for extensions between 4–8 m deep. The larger plots common across the borough — particularly in Chislehurst (BR7) and Orpington (BR5/BR6) — often accommodate extensions toward the upper end of these limits. TB&D Construction confirms the position on the first site visit.

Question 2

What planning restrictions apply in the Bromley Green Belt areas?

Accepted Answer

Properties at the borough's southern edge — around Biggin Hill in BR6 — that adjoin designated Green Belt land face stricter controls on extensions and outbuildings. The Green Belt designation limits new buildings and major extensions that would have a significant visual impact on the open character of the land. TB&D Construction checks Green Belt status and any relevant Article 4 directions before quoting on properties in the southern borough.

Question 3

How much does a hip-to-gable loft conversion cost in Bromley?

Accepted Answer

Hip-to-gable loft conversions on the Victorian and Edwardian semi-detached stock common in the northern half of the borough (BR1–BR3) typically cost £55,000–£80,000 including the gable rebuild, rear dormer, Velux windows, staircase, insulation and structural engineer sign-off. Adding a full en-suite bathroom to the new loft room adds £8,000–£15,000. TB&D provides a fully itemised quote within 48 hours.

Question 4

What party-wall considerations arise on the semi-detached and detached houses across Bromley?

Accepted Answer

Semi-detached houses in BR1, BR2 and BR3 share a single party wall, so a loft conversion, rear extension or lateral alteration that loads onto or builds along that wall requires a Party Wall Act notice served on the adjoining owner before work starts. Detached houses in BR5, BR6 and BR7 typically avoid the Act for main extensions, though excavation close to the boundary for foundations can still trigger it. TB&D Construction assesses the party-wall position during the site visit and prepares notices as a standard part of the project.

Question 5

What is TB&D Construction's track record working on Bromley's varied housing types?

Accepted Answer

Bromley's housing ranges from Victorian and Edwardian semis in BR1 and BR3, through substantial 1930s detached houses in Chislehurst (BR7) and the rural plots in Green Belt-adjacent BR6, to modern apartment blocks in the town-centre regeneration zone. TB&D Construction covers all of these — loft conversions and full house renovations on period semis, kitchen and bathroom refits in modern apartments, full gut renovations on 1930s detached properties — all managed under one named project manager from site visit to Building Regulations sign-off.

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