Rosenau Designs Ltd

Rosenau Designs Ltd is an experienced residential construction company delivering carefully managed refurbishments, extensions, conversions and new-build homes across London and surrounding areas. We bring together practical construction knowledge, design awareness and disciplined project management, with experience covering a broad range of residential work, from complete renovation of period properties to technically demanding basements, structural alterations, loft conversions, rear extensions, multi-unit conversions and individually designed new-build homes. Our completed work demonstrates the ability to manage both the visible finishes and the complex construction behind them, including basement construction, piling, waterproofing, major steelwork, structural remodelling, rear extensions and loft conversions.

We have also delivered full renovations across London, including period and heritage properties, with internal remodelling, upgraded services, bespoke finishes and careful integration of new work into existing buildings, as well as new-build houses, new apartments and conversions of existing buildings into multiple flats. We provide clients with a structured route through a process that can otherwise feel complicated and uncertain, focusing on clear project planning, practical problem-solving, strong coordination of architects, engineers, subcontractors and statutory inspections, quality control through staged checks, and respect for the property through protection, cleanliness and considerate working practices. Communication and accountability are key, with clear recording of scope, decisions, changes and next steps.