• Garden Room QandA

    Which Garden Room Is Right For You?

    Need help to maximise your outer space?

Garden Rooms - Your Questions Answered

Extra Room are Garden Room specialists! Whether you need an office, gym or playroom we can help you venture into your outer space!

How much will my garden room cost?

We do not have a standard product because each garden room is bespoke. The price varies on the design you choose, the amount of windows and doors, distance from your property etc. After an initial telephone conversation we can provide you with a guide price and offer a site survey, from which we will prepare a full quotation.

Do I need Building Control?

Building Regulations do NOT apply if:

  • The internal area is less than 15m²
  • The internal area is less than 30m² and is not within 1m of the boundary

Building Regulations DO apply if:

  • You require a toilet, shower or basin to the mains sewer
  • It is self-contained or a living accommodation
  • The building is 30m² or over

How should I leave the site?

The area requires being free from all obstructions. If you have an existing concrete slab for the base, this must be free of cracks and be a minimum of 4” deep.

How does the structure sit on the floor?

The garden room will sit on a fully galvanised steel frame, which is resistant to rust and separates the building from the ground. This prevents moisture rising through any natural materials and provides airflow beneath the building, improving thermal efficiency and deterring weed growth and vermin.

How close can I put the building from my boundary?

If the building is less than 15m² (150ft²) you can build right up to your boundary (400mm). If the building is over 15m² you will need to be at least 1m from a boundary.

Who will be on site during the project?

A Project Manager will be on site at all times. We have an excellent team of professional tradesmen.

Will a garden room add value to my property?

Our garden rooms are built to a high specification and will last for many years; they are permanent buildings and will add between 75% - 100% of their cost price to the value of your property.

Need more information?

To arrange a free consultation please contact us to book an appointment at a time that is suitable for you, we are happy to visit clients outside of office hours.

Garden Room Image 1

Garden Room Image 3

Garden Room Image 6

Expert Tip - Exterior Lighting

"When designing your garden room don't forget exterior lighting - there are lots of options available for both styling and control including the option to use text messaging to activate the fixtures."

Why Choose Extra Room?

Our Staff

This is exactly what it means; our staff are the only people who are involved in your project. Extra Room Ltd does not sub-contract your project out to other contractors.

All operatives are employed by Extra Room Ltd we are always contactable by phone and email to deal with any queries or questions that may arise. All of our operatives have an Extra Room Ltd uniform and identification badge so that they are instantly recognisable.

Site Rules

We have very strict guide lines for all projects, all staff must wear the Extra Room Ltd uniform and personal protection whilst at work i.e. boots, high visibility jackets and safety helmets where necessary.

There is a no smoking policy at work and where possible we will provide a discrete portable toilet facility so that your home stays your home with no intrusion. No radios are to be played on your project. We understand that whilst your project is being completed this should not intrude upon your neighbours who are already being submitted to the noise of building works.


Extra Room Ltd provides a full time Project Manager who will be involved from the very start of the project until completion, he will provide all certificates and completion certificates which will then be held in a project file and presented to you at the end. They will also ensure that all site rules are followed and report directly to the Director of the company.

Unrivalled Guarantee

All structural works come with a 10 year no quibble guarantee, of which upon completion of your project you will receive a certificate of guarantee. All other works i.e. plumbing and electrics will come with a standard 2 year guarantee.

No Hidden Costs

Once we have surveyed your project, a quotation with a complete breakdown of costs will be presented to you. This break down will be individually priced so that you can clearly see where your budget will be spent and if at any time you would like to remove an item you will instantly know what the saving will be.

In the event that you decide that you would like to add additional works, these additions will be separately quoted and an instruction sheet issued that yourself and the Project Manager will both sign so that there is no hidden costs and you are in control of your budget at all times.

Peace of Mind

Before any works commence, Extra Room Ltd will provide you with a break down sheet of all the works to be completed within your project. This includes an empty box at the end of the description, yourself and the Project Manager will go through this sheet and check that you are completely satisfied with the completed works and then tick the box together. At this point you will only have ever paid for works that are fully completed and you will not be asked to pay any monies upfront or before the works are complete.

Further Information for Garden Rooms

Selected Projects View All Projects »