Fixed fee from £1,575. MCIAT chartered. Tower Hamlets planning experienced. 1 postcode covered: E14.
Limehouse is Georgian and Victorian terraces, dockside. The dominant stock — georgian and victorian terraces, warehouse conversions — has specific constraints and opportunities for mansard roof extensions. 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 mansard roof extensions projects in Limehouse fall under Permitted Development if the property is a house (not a flat), not listed, and not in a conservation area. Tower Hamlets has an Article 4 Direction — Article 4 for HMOs borough-wide; additional Article 4 covering office-to-residential in Canary Wharf and City Fringe. We confirm eligibility free at the site survey.
Drawings: fixed fee from £1,575 (Mansard Roof Extensions). Construction cost is separate and depends on size, finish and structural complexity. For georgian and victorian terraces, warehouse conversions (typical of Limehouse), 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 Tower Hamlets Council planning decision. Site survey week 1, design weeks 2–3, validation 1–2 weeks, statutory 8-week determination.
Limehouse is characterised by georgian and victorian terraces, warehouse conversions. We've delivered mansard roof extensions for every period represented here — the design choices vary significantly by stock.
Our first-time approval rate in Tower Hamlets is 98%. Pre-application advice from Tower Hamlets Council is built into our process when the case is borderline (conservation area, Article 4, listed).