Fixed fee from £1,225. MCIAT chartered. Richmond upon Thames planning experienced. 1 postcode covered: SW14.
Mortlake is Victorian and Edwardian terraces. The dominant stock — victorian and edwardian terraces — 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 Mortlake fall under Permitted Development if the property is a house (not a flat), not listed, and not in a conservation area. Richmond upon Thames has no borough-wide Article 4 Direction. 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 victorian and edwardian terraces (typical of Mortlake), 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 Richmond Council planning decision. Site survey week 1, design weeks 2–3, validation 1–2 weeks, statutory 8-week determination.
Mortlake is characterised by victorian and edwardian terraces. We've delivered house extension drawings for every period represented here — the design choices vary significantly by stock.
Our first-time approval rate in Richmond upon Thames is 98%. Pre-application advice from Richmond Council is built into our process when the case is borderline (conservation area, Article 4, listed).