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Published by nick.gillam, 2019-12-10 07:39:22

Build It January issue excerpt


24 readers’ homes

of their sun-soaked new zone. “It’s amazing to sit here in the flooring to create an ambient source of warmth underfoot. A new
evenings and watch all the birds and animals in the garden,” says boiler was installed in the main barn to power the property’s entire
Debbie. On the cold winter evenings, however, the couple still have central heating setup. “ e solar gain in the room is staggering,” says
their original lounge on the first floor of the barn to retreat to. “It’s Debbie. “Even during winter, all it takes is a weak bit of sunshine,
so cosy to shut the curtains up there and light the woodburner.” and the space will be warmed considerably. We installed plenty of
insulation, too, so the extension retains the heat.”
e couple’s son and architect, Adam, is also pleased with the
outcome of the scheme. “We definitely achieved what my parents While the experience of doing this project certainly hasn’t put the
wanted,” he says. “ e space is so light and airy, it’s a great family couple off doing another build, they agree this is their forever home.
room where everyone can sit around the table together.” “ is is our house for life and we’ve already made the decision that
we never want to move from here,” says Debbie. “What we’ve created
Another bonus is that the extension scores high in terms of its is perfect. If I was to do it all again, I wouldn’t change a thing.”
energy-efficiency. Underfloor heating has been paired with slate


Ground floor Elements Cost m2 Cost % Total cost

Garden room extension Preliminaries £80 3% £4,404
Architect £18 <1% £1,000
Entrance Lobby Structural engineer £26 1% £1,400
Steel frame & structural panels £342 13% £18,834
Master Ensuite Study Kitchen Mono pitch & flat roof
bedroom Hall structure (incl. covering) £361 14% £19,830
Glazing (incl. doors) £349 13% £19,200
Lobby Cladding & downpipes £139 5% £7,626
Alterations to pipework £22 1% £1,218
First floor Moving radon vent &
associated work £19 1% £1,050
Bedroom Bathroom Excavation/DPC/Slab £298 11% £16,386
Bedroom Drainage £53 2% £2,892
Living room Miscellaneous building
materials £31 1% £1,716
Electrics £113 4% £6,222
New boiler & underfloor
heating in extension £207 8% £11,400
Screed £36 2% £1,980
Slate flooring £120 5% £6,600
Outside works £237 9% £13,026
Internal finishes & decorations £109 4% £5,988
Light fittings £36 1% £2,000
Alarms £7 <1% £360
Contingency £45 2% £2,500

Grand total £145,632

Note: The costs shown here are for the extension only. They reflect the
original prices for materials, labour and services at the time this project was
undertaken. As a general guide, inflation in the construction market runs at

House plans re-created using
Build It 3D Home Designer software.

Useful contacts

ARCHITECT Kast Architects 01872 241111 CONTRACTOR JDS Properties & Developments 01209 614726
STRUCTURAL ENGINEER LB Structures 01872 865073 LIGHTING Tom Raffield 01326 722725

Build It January 2020

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