TRJ CONSTRUCTION LTD · BESPOKE SIP BUILDINGS

Garden Rooms in Shenfield

Make space for the part of life that needs its own room. TRJ Construction Ltd builds bespoke SIP garden rooms in Shenfield, shaped around working, training, making music or spending time together.

Built around your brief. Quoted for your site.

YOUR SHENFIELD PROJECT

A productive room for hybrid working

A Shenfield home office can support focused work without occupying a room inside the house. Consider reliable wired connectivity, a comfortable chair position and controllable daylight. If two people will use the room, allow for simultaneous calls and circulation behind both desks before agreeing its size.

Bring a rough garden plan, photographs and a list of what the building needs to do. We can then discuss the position, orientation, access and service connections before narrowing down the layout. A design that works on paper must also work with the route into your garden.

Explore all garden rooms · How our buildings are made

CHOOSE YOUR STARTING POINT

One building. Space for your priorities.

Choose the main use first. It guides everything from glazing and storage to lighting and the electrical layout.

01

A focused home office

Position the desk, screen, sockets and lighting together. Plan a reliable connection to the house and a comfortable background for calls.

Explore garden offices
02

A gym or creative studio

Allow for equipment clearance, movement, ventilation and the way sound may travel to the house and neighbours.

Explore garden gyms
03

Family space with useful extras

A shared room can combine relaxed seating with storage. A WC or shower can be explored where services and approvals allow.

Rooms with bathrooms

REAL WORK · REAL LOCATIONS

Ideas from completed TRJ projects

Explore the photographs and details of these individual builds. The location and project credit stay with each example, so you can distinguish inspiration from a job completed in Shenfield.

Browse more completed projects

FROM BRIEF TO BUILD

A clear scope before construction

For your Shenfield garden room, resolve the practical details early so the finished space supports the way you intend to use it.

  1. Start with people and purpose

    List the furniture, equipment and storage that the room must accommodate. Allow circulation space as well as the footprint of each item.

  2. Understand the garden

    Assess delivery access, levels, foundations, trees and boundaries. Map the route for power and any water or drainage connections rather than leaving it to the end.

  3. Agree the specification

    Review the SIP structure, cladding, glazing, heating, ventilation and finishes. Confirm approvals, responsibilities, inclusions and the construction programme in writing.

  4. Build and hand over

    Coordinate the agreed works and relevant inspections. At handover, review the installation, operating information and documentation applicable to your project.

PLAN WITH CONFIDENCE

Planning permission and building regulations

Some garden rooms used for purposes incidental to the house may fall within permitted development, subject to limits and conditions. The proposed use, dimensions, position and any restrictions on the property all matter. Sleeping accommodation needs a different assessment. Building regulations are a separate question; size alone does not establish an exemption. Confirm both routes for your actual proposal before building.

Check the council responsible for the property's postcode. Conservation designations, protected trees, previous permissions and site constraints can affect the proposal. We can discuss the construction information needed; the authority or appointed building control body determines the applicable approval process.

BUDGET & SPECIFICATION

Price the complete project

A useful budget covers more than the shell. Foundations, access, external works, glazing and the distance to services can change the overall cost. Lighting, heating, sockets and any bathroom or storage element should be included in the brief.

Request a written quotation for your Shenfield property, with VAT, inclusions, exclusions and approval or professional fees clearly identified. The programme should reflect site conditions and the agreed approval route.

View garden room options · Compare external cladding · Understand SIP construction

YOUR QUESTIONS

Garden Rooms in Shenfield: useful answers

Can TRJ build a garden room in Shenfield?

Yes, Shenfield is included in our service area. The first step is to assess your intended use, garden position, access and service routes. A quotation and programme follow the agreed scope and site assessment.

How should I start planning my Shenfield garden room?

A Shenfield home office can support focused work without occupying a room inside the house. Consider reliable wired connectivity, a comfortable chair position and controllable daylight. If two people will use the room, allow for simultaneous calls and circulation behind both desks before agreeing its size.

What affects the cost of a garden room in Shenfield?

Floor area is only part of the budget. Ground conditions, foundations, access, glazing, interior finishes and service connections can all change the scope. Ask for a written quotation that identifies inclusions, exclusions, VAT and any approval or professional fees.

Does my garden room need planning permission?

Some garden rooms used for purposes incidental to the house may fall within permitted development, subject to limits and conditions. The proposed use, dimensions, position and any restrictions on the property all matter. Sleeping accommodation needs a different assessment. Building regulations are a separate question; size alone does not establish an exemption. Confirm both routes for your actual proposal before building.

Can I include a WC, shower room or storage?

Yes, these options can be considered. A separate storage zone protects the main room, while a WC or shower needs suitable drainage, water and electrical provision. The site survey and proposed use determine the practical design and approval requirements.

Are the photographs projects in this exact area?

Each photograph is labelled with its real project location. The images show completed work from the TRJ portfolio as design inspiration; they are not presented as projects in this area unless the caption says so. Work undertaken for Garden Spaces is credited alongside the relevant example.

More frequently asked questions

Read before you build

Prepared by TRJ Construction Ltd. Meet the team behind the work. General project guidance; the assessment and approvals must relate to your particular site.

Other areas we cover

Also looking for a different type of space? Granny Annexes in Shenfield.

View all areas and both services

LET’S TALK ABOUT YOUR GARDEN

Your next space starts with a conversation.

Tell us about your Shenfield property, the intended use and the features that matter most.