Fast Plans

Founded by builders turned designers, Fast Plans transforms London homes through expert architectural drawings and planning services. Our unique construction background means we deliver what others can't: builder-ready drawings that combine practical feasibility with design excellence. Our proven process delivers- Survey completed within 7 days of booking - Initial design drafts within 14 days of survey - Complete structural and engineering packages - Unlimited design revisions at no extra cost - Full planning application management - 98% first-time planning approval rate across London boroughs Why London's top developers and homeowners choose us- True fixed-price packages - zero hidden fees, no exceptions - 15+ years of hands-on construction and design expertise - Practical solutions that maximise space and light in period properties - Single expert contact from survey to approval - 4.9/5 average rating from 330+ verified customers We specialise in loft conversions, house extensions, and building regulation drawings, delivering comprehensive packages that include everything from initial survey through planning approval and structural calculations. Trusted by homeowners for individual projects, builders as their design partner, and developers for multi-property portfolios across London.