Architectural drawings in Brompton

Brompton sits within Kensington and Chelsea, so applications are decided by RBKC Planning. Most single-storey rear extensions and side-returns on terraced or semi-detached homes in Brompton fall under Permitted Development — up to 3m deep (attached) or 4m (detached), under 4m high. Flats, listed buildings and conservation areas always require full planning. Article 4 status here: Yes. We check eligibility free at the site visit.

Brompton is characterised by Victorian stucco terraces, mansion blocks. The dominant stock is Stucco terraces, Edwardian mansion blocks. We've drawn extensions and lofts for every period represented here — Victorian rear additions, Edwardian side returns, 1930s wrap-arounds, and contemporary infill where the streetscape allows.

RBKC Planning statutory determination is 8 weeks for householder applications. Validation typically adds 1–2 weeks. From your first call to a decision, expect 12–14 weeks total: 1 week measured survey, 2 weeks design, 1–2 weeks validation, 8 weeks determination. We've achieved a 98% first-time approval rate across Kensington and Chelsea.

Loft conversion drawings in Brompton start at £1,225 for planning + building regs combined. Construction cost (separate from drawings) is £45,000–£75,000 for a standard rear dormer on a Victorian or Edwardian terrace, £65,000–£95,000 for a hip-to-gable plus dormer. We quote drawings as a fixed fee — no hourly creep.

Kensington and Chelsea has 38 designated conservation areas. Nearest to Brompton: Kensington. In a conservation area, full planning is required for most external work (including roof additions, rendering, replacement windows). We prepare a Heritage Statement covering the conservation area's character appraisal.