Japandi Family Home, Surrey

A young family relocating to Surrey envisioned transforming a traditional property into their ideal first-family home.

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Project Snapshot

Scope
Rear & side extension, full-house remodel, loft conversion

Property
Detached five-bedroom house in a designated character area

Style
Modern “Japandi” – warm oak, stone and clean steel detailing

Programme
18 months on site

Services
Design development, planning negotiation, engineering management, full build & after-care

The Brief

The clients wanted to turn a traditional Surrey property into a generous, light-filled family home that felt calm, contemporary and energy-efficient—without losing the original street-front character demanded by local planning rules.

Our Challenge

Respect the façade while virtually rebuilding the rest of the house.
Link old and new spaces so they read as one coherent home.
Hit ambitious energy targets with heat-pump technology and full insulation.

What We Delivered

Sensitive structural strategy—we retained and reinforced key exterior walls, allowing the front elevation to stay in harmony with neighbouring houses.
Bold single-storey rear & side extension—creates a semi-open-plan kitchen / dining zone flooded with light via five-metre bifold doors.
Loft conversion & first-floor re-plan—equal-sized bedrooms plus a new principal suite.
Signature staircase—sculptural timber treads and slim-line steel balustrade anchor a double-height atrium.
Bespoke joinery throughout—Japandi-inspired cabinetry, stone-wrapped vanities and clever pull-out storage.
Family-friendly extras—sound-proofed floors and even a climbing wall built into a reinforced partition.
Energy upgrades—air-source heat pump, cooling loop, underfloor heating and envelope-wide insulation for year-round comfort.

Favourite Feature

A spa-like master bathroom lined in natural stone with a sunken bath on a raised plinth—calm, tactile and perfectly in keeping with the Japandi brief.

QUOTE

At a Glance

99 % planning-approval success maintained
6-year structural warranty issued at completion
18 % projected reduction in annual heating demand versus pre-works baseline

Outcome

The project was handed over on programme and within the agreed budget envelope. Planning officers praised the sensitive treatment of the street façade; the family now enjoys a seamless indoor-outdoor lifestyle and a home that runs on low-carbon tech.

“Happy Building balanced design ambition with cost control at every step. The house feels totally new yet still belongs in the neighbourhood.”
— Homeowner

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