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HCDB Group Home Comfort Design & Build
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Architectural Kitchen & Side-Return Extensions London

Side-return, wraparound, and rear extensions creating bright, open-plan architectural family hubs with frameless glazing.

Rear glass box kitchen extension on a London terrace house showing seamless indoor outdoor transition
Prime London Execution • 10-Yr Structural Guarantee

Key Service Features & Standards

check_circle Flush threshold floor-to-garden transitions
check_circle Structural steel framework calculations
check_circle Smart zonal underfloor heating systems
check_circle Slimline Crittall black steel architectural glazing

Bright Open-Plan Family Architecture

Modern London living revolves around the kitchen hub. Our architectural extensions unlock underutilised side-return alleys and rear yards, creating expansive open-plan kitchen, dining, and living zones. We integrate frameless roof lanterns, structural glass beams, and ultra-slim sliding or Crittall doors that erase the barrier between interior and garden.

Flush Thresholds & Underfloor Heating Integrations

Achieving a smooth, step-free transition from interior oak or polished concrete flooring to your garden patio requires meticulous drainage design. We install wet underfloor heating systems connected to high-efficiency heat pumps or modern boilers for ultimate energy performance.

Frequently Asked Questions

Frequently Asked Questions

What is the average build time for a side-return kitchen extension? expand_more

A typical side-return or wraparound extension takes between 12 to 16 weeks from ground excavation to final kitchen fitting.

Can you install Crittall style black steel doors in my extension? expand_more

Yes, we specialize in authentic Crittall black steel doors and thermally-broken aluminum slimline profile doors with flush threshold drainage.

Direct Consultation

Book Site Feasibility Survey

Arrange a visit with an architectural project manager to review your property details.

Request Free Estimate

Request Estimate for Kitchen & Ground Floor Extensions

Fill out the quick form below to receive a guaranteed fixed-price proposal.