HARLOW, ESSEX · TRJ CONSTRUCTION

SIP house extension and kitchen refurbishment in Harlow

More room to live. A kitchen planned around everyday life.

TRJ Construction built this SIP extension for Barney Weston and refurbished the kitchen within the existing home. Composite cladding, aluminium bifold doors and a coordinated connection to the house bring the new space together with the renovation.

Discuss your house extension ↗Explore the project ↓

Completed Harlow SIP extension with composite cladding, bifold doors and canopy lighting — Harlow, Essex · SIP extension and kitchen refurbishment by TRJ Construction

Location: Harlow, Essex
Recorded external area: 16.5 m²
Structure: SIP walls & roof
Raft foundation
Client: Barney Weston

01 / THE BRIEF

Extend the home.
Rethink the kitchen.

The project combined a new extension with a kitchen refurbishment, considering the rooms and their connection together. The extension creates an additional space opening towards the garden; the kitchen renovation improves storage, preparation space and the layout around an island and dining area.

Costi helped with planning, design and layout and resolved issues as the build progressed. Barney’s review describes the team’s reliability, attention to detail and the quality of the completed build and renovation.

The order form records an external extension area of 16.5 m². Its layout drawing shows an approximately 4 m × 4 m extension arrangement beside the house, with a new access opening and reuse of the existing French doors.

02 / ORIGINAL DESIGN & LAYOUT

The house connection.
The kitchen arrangement.

The original extension drawings show the proposed layout, glazing, roof and elevations. The separate Howdens kitchen plan places an island within the kitchen, with perimeter cabinets, appliance storage and a dining area.

Original Harlow extension concept illustration alongside the existing house

Original Harlow house and extension layout with approximately 4 m by 4 m extension dimensions

Original isometric design of the Harlow SIP house extension

Original elevations showing the Harlow extension and its connection to the house

Original Howdens kitchen layout with an island, dining area and coordinated appliance storage

Original design illustrations and layout drawings from the project record. The kitchen plan covers the kitchen and dining arrangement within the home; it is separate from the extension’s external floor area. The photographs below show construction and the completed work.

Reinforcement installed for the Harlow extension raft foundation — Reinforcement for the extension’s raft foundation

03 / THE BUILD & FINISH

A raft foundation.
An insulated SIP shell.

The project specification calls for a raft foundation with SIP walls and roof. Steel beams support the door opening, while the connection to the existing house was coordinated with the new extension layout.

An EPDM roof membrane, black guttering and canopies over the glazed openings complete the roof arrangement. The exterior combines composite cladding with a rendered finish over fire-resistant board.

Aluminium glazing

The order specifies anthracite RAL 7016 aluminium joinery: a 2,700 mm × 2,100 mm bifold door set and a 2,000 mm × 1,050 mm casement window, with toughened, argon-filled double glazing.

Connection to the house

A new opening connects the extension with the existing home. Reusing the house’s French doors formed part of the agreed access arrangement.

Roof and external finish

The flat roof uses an EPDM membrane with black rainwater goods. Composite-clad elevations, canopies and a rendered elevation over fire-resistant board provide the external finish.

Interior finishes

Plasterboard, skimmed walls and white paint form the interior finish. The specification includes Howdens laminate flooring with white skirting and a 1,000 mm wall radiator.

Lighting and electrical provision

The recorded extension specification includes four double sockets, nine internal lights, four external lights and a fire alarm. Electrical work was coordinated with the extension and kitchen refurbishment.

Kitchen refurbishment

The kitchen plan coordinates cabinetry, a sink run, appliance storage, an island and dining space. Finished photographs show fitted dark cabinetry, light worktops, pendant lighting and the central island.

Building control and thermal design

Building-control coordination and SAP calculations are recorded in the order. These form part of the technical planning around the extension and its connection to the house.

Drainage coordination

Rainwater drainage and a surface-water channel were included in the project specification, with the proposed discharge arrangement subject to approval.

04 / CUSTOMER FEEDBACK

Excellent experience
with TRJ Construction.

★★★★★

Costi has been excellent since our first contact with him, helping with planning, design and layout and solving problems that occurred as the build started seamlessly. He has always been open, honest and trustworthy, providing sound advice and helping us get every aspect of the build right. Costi takes immense pride in his work, and has fantastic attention to detail.
The quality of the build and finish has exceeded our expectations. Costi and his team have always been reliable and punctual, and his knowledge throughout the process combined with his dedication to perfection has really made our build and renovation better than we ever imagined it could be. I highly recommend TRJ Construction.

Barney Weston · 5-star review · Read Barney’s Google review ↗

05 / PROJECT PHOTOGRAPHS

From the foundations
to the finished kitchen.

Explore the extension, refurbished kitchen and construction stages. Select a photograph to see it in detail.

Kitchen sink and cabinetry in the refurbished Harlow kitchen

Refurbished Harlow kitchen with central island and fitted cabinetry

Kitchen island, pendant lights and dining space in the Harlow home

Raft foundation preparation beside the existing Harlow house

Completed concrete raft foundation for the Harlow SIP extension

Harlow extension groundwork and foundation construction

View 36 more project photographs

Harlow SIP extension and kitchen refurbishment — project photograph 9 — Harlow extension · project photograph 9

Harlow SIP extension and kitchen refurbishment — project photograph 10 — Harlow extension · project photograph 10

Harlow SIP extension and kitchen refurbishment — project photograph 11 — Harlow extension · project photograph 11

Harlow SIP extension and kitchen refurbishment — project photograph 12 — Harlow extension · project photograph 12

Harlow SIP extension and kitchen refurbishment — project photograph 13 — Harlow extension · project photograph 13

Harlow SIP extension and kitchen refurbishment — project photograph 14 — Harlow extension · project photograph 14

Harlow SIP extension and kitchen refurbishment — project photograph 15 — Harlow extension · project photograph 15

Harlow SIP extension and kitchen refurbishment — project photograph 16 — Harlow extension · project photograph 16

Harlow SIP extension and kitchen refurbishment — project photograph 17 — Harlow extension · project photograph 17

Harlow SIP extension and kitchen refurbishment — project photograph 18 — Harlow extension · project photograph 18

Harlow SIP extension and kitchen refurbishment — project photograph 19 — Harlow extension · project photograph 19

Harlow SIP extension and kitchen refurbishment — project photograph 20 — Harlow extension · project photograph 20

Harlow SIP extension and kitchen refurbishment — project photograph 21 — Harlow extension · project photograph 21

Harlow SIP extension and kitchen refurbishment — project photograph 22 — Harlow extension · project photograph 22

Harlow SIP extension and kitchen refurbishment — project photograph 23 — Harlow extension · project photograph 23

Harlow SIP extension and kitchen refurbishment — project photograph 24 — Harlow extension · project photograph 24

Harlow SIP extension and kitchen refurbishment — project photograph 25 — Harlow extension · project photograph 25

Harlow SIP extension and kitchen refurbishment — project photograph 26 — Harlow extension · project photograph 26

Harlow SIP extension and kitchen refurbishment — project photograph 27 — Harlow extension · project photograph 27

Harlow SIP extension and kitchen refurbishment — project photograph 28 — Harlow extension · project photograph 28

Harlow SIP extension and kitchen refurbishment — project photograph 29 — Harlow extension · project photograph 29

Harlow SIP extension and kitchen refurbishment — project photograph 30 — Harlow extension · project photograph 30

Harlow SIP extension and kitchen refurbishment — project photograph 31 — Harlow extension · project photograph 31

Harlow SIP extension and kitchen refurbishment — project photograph 32 — Harlow extension · project photograph 32

Harlow SIP extension and kitchen refurbishment — project photograph 33 — Harlow extension · project photograph 33

Harlow SIP extension and kitchen refurbishment — project photograph 34 — Harlow extension · project photograph 34

Harlow SIP extension and kitchen refurbishment — project photograph 35 — Harlow extension · project photograph 35

Harlow SIP extension and kitchen refurbishment — project photograph 36 — Harlow extension · project photograph 36

Harlow SIP extension and kitchen refurbishment — project photograph 37 — Harlow extension · project photograph 37

Harlow SIP extension and kitchen refurbishment — project photograph 38 — Harlow extension · project photograph 38

Harlow SIP extension and kitchen refurbishment — project photograph 39 — Harlow extension · project photograph 39

Harlow SIP extension and kitchen refurbishment — project photograph 40 — Harlow extension · project photograph 40

Harlow SIP extension and kitchen refurbishment — project photograph 41 — Harlow extension · project photograph 41

Harlow SIP extension and kitchen refurbishment — project photograph 42 — Harlow extension · project photograph 42

Harlow SIP extension and kitchen refurbishment — project photograph 43 — Harlow extension · project photograph 43

Harlow SIP extension and kitchen refurbishment — project photograph 44 — Harlow extension · project photograph 44

06 / PROJECT QUESTIONS

A few useful answers.

Where is this SIP house extension?

The project is in Harlow, Essex.

How large is the extension?

The original order records an external area of 16.5 m². The layout drawing shows an approximately 4 m × 4 m arrangement; these are design details rather than a surveyed internal floor area.

What foundation and structure were specified?

A raft foundation supports the SIP wall and roof structure, with steel support over the door opening.

Was the kitchen refurbished as well?

Yes. The project includes a kitchen refurbishment, with a separate Howdens plan showing cabinetry, appliances, an island and dining space.

Who delivered the extension and refurbishment?

TRJ Construction carried out the project for Barney Weston. Costi helped with planning, design and layout, and coordinated the work with the team.

YOUR NEXT PROJECT

Your home.
More room to live.

Planning a SIP house extension? Share photographs of the house, any existing drawings and the space you would like to create. We can discuss the layout, connection to your home and kitchen or interior requirements.

Explore our SIP construction, build process and planning support.

Talk to Costi ↗Call 07966 800519

SIP house extension and kitchen refurbishment in Harlow

Extend the home.
Rethink the kitchen.

The house connection.
The kitchen arrangement.