IX Construction Group
Profile reviewed Founding
Based in Worthing · Covers Sussex
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Garden Rooms & Annexes
A professional residential construction company.
Sussex garden room and annexe specialists
Find garden room and annexe specialists across Sussex
Browse Sussex specialists for detached garden rooms, offices, studios, gyms and annexe projects. The design, intended use, size, position and level of services can affect planning and building requirements, so establish the proposed use before comparing quotes.
A useful garden-room quote should make clear the foundations, structure, insulation, roof, doors and windows, electrics, heating, internal finish, drainage if any, and who is responsible for permissions or specialist design.
Garden Rooms & Annexes services
Services can include the following. Individual businesses may offer some rather than all of these, so check the profile for the exact work you need.
- Insulated garden room construction
- Garden office construction
- Garden studio construction
- Garden gym rooms
- Hobby and craft rooms
- Garden bars and entertainment rooms
- Timber-frame garden buildings
- SIP or panel-built garden rooms where offered
- Garden room foundations and base systems
- Insulation and internal lining
- Roofing and external cladding
- Doors and window installation
- Internal flooring and decorating
- Electrical fit-out coordinated with an appropriate electrician
- Heating and ventilation options
- Decking or entrance steps around garden rooms
- Annexe and larger outbuilding projects where offered
When to hire a garden room and annexe specialist
- You need a separate home office without extending the house
- You want an insulated year-round garden studio or gym
- An old shed is not suitable for the space you need
- You are considering a larger garden annexe or outbuilding
- You need a complete garden-room build rather than a flat-pack shed
What to include when asking for a quote
- Describe the exact problem or result you want, including what needs changing and any known damage or previous work.
- Add clear photos where they can be taken safely, and include useful measurements, plans, model details or product information where relevant.
- Give the property location, access or parking constraints, and any deadline or urgency.
- Say whether you are supplying materials or products, or want the business to include them.
- Mention previous repairs, surveys, approvals or known defects that could affect the work.
What to check before hiring a garden room and annexe specialist
- Experience with similar size and intended use
- Foundation and structural system
- Insulation, ventilation and weatherproofing specification
- Doors, windows, roofing and cladding included
- Electrical, heating and drainage responsibilities
- Planning and building-regulation responsibilities
- Warranty, insurance and written project scope
Useful questions to ask a garden room and annexe specialist
- Is this design suitable for my intended use throughout the year?
- What foundation, insulation and roof system are included?
- Who handles electrical work and any plumbing or drainage?
- Could planning permission or building regulations apply to this design or use?
- Are internal finishes, flooring and decorating included?
- What is excluded from the quoted price?
What can affect the cost of garden room and annexe construction
- Building size and specification
- Foundation or ground conditions
- Insulation and glazing
- Roof and cladding materials
- Electrical, heating and plumbing requirements
- Access to the garden
- Internal finish and fitted features
- Planning, design or structural requirements
Before the work starts
- Decide how the room will actually be used, including whether anyone will sleep or live in it.
- Measure the available garden area and note boundaries, trees, slopes and access for materials.
- Mention drainage, power and internet requirements and any known planning restrictions at the outset.
Safety note
Do not assume every garden building is permitted development. Planning Portal states that ordinary outbuilding rules relate to uses incidental to the dwellinghouse and do not cover separate self-contained living accommodation.
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