Fixed fee from £1,225. MCIAT chartered. Camden planning experienced. 1 postcode covered: NW3.
Hampstead is affluent, listed Georgian and Victorian villas. The dominant stock — georgian and victorian villas, listed buildings — has specific constraints and opportunities for house extension drawings. Side returns sit better on bay-fronted Victorian terraces than on detached 1930s semis. Mansards work where the existing roofscape supports them. We design to the block, not the brochure.
Local context summary — Architectural Drawings London, MCIAT charteredMost house extension drawings projects in Hampstead fall under Permitted Development if the property is a house (not a flat), not listed, and not in a conservation area. Camden has an Article 4 Direction — Article 4 removes permitted development for HMO conversions (C3 to C4) across the borough, plus restrictions on basement extensions in 12 conservation areas. We confirm eligibility free at the site survey.
Drawings: fixed fee from £1,225 (House Extensions). Construction cost is separate and depends on size, finish and structural complexity. For georgian and victorian villas, listed buildings (typical of Hampstead), expect £45,000–£85,000 build cost for a standard rear extension or loft, more for mansards or basements.
12–14 weeks from first call to Camden Council planning decision. Site survey week 1, design weeks 2–3, validation 1–2 weeks, statutory 8-week determination.
Hampstead is characterised by georgian and victorian villas, listed buildings. We've delivered house extension drawings for every period represented here — the design choices vary significantly by stock.
Our first-time approval rate in Camden is 98%. Pre-application advice from Camden Council is built into our process when the case is borderline (conservation area, Article 4, listed).