Residential services built around private clients

Whether you’re extending, modernising, or building from the ground up, we focus on clean delivery, transparent scope, and a finished result that feels considered.

All services

Home Extensions

Side returns, rear extensions and full reconfigurations — built for light, flow and long-term value.

Full Refurbishments

Whole-house modernisation including kitchens, bathrooms, finishes, electrics, plumbing and insulation upgrades.

New-Build Houses

From foundations to handover — private residential new-build delivery with programme control and quality checks.

Structural alterations & steelwork Loft conversions Project management Building Control coordination

Why clients choose Rosenau

Private residential work succeeds on planning, communication and disciplined site delivery. We run clear scope, a structured programme, and practical on-site standards that respect your home.

Transparent scope
Clear inclusions/exclusions and change control.
Clean working practices
Protection, dust management and tidy sites.
Predictable delivery
Programme checkpoints and regular updates.

Communication was clear throughout and the site was kept exceptionally tidy. The finish quality exceeded expectations.

Private Client • London

Planning a refurbishment, extension or new-build?

Book a consultation and we’ll confirm feasibility, outline likely scope, and propose practical next steps.