My Retreat Garden Rooms | Surrey and Home Counties

Garden Room Prices in Surrey: Honest, Transparent, No Surprises

Every price on this page includes VAT, foundations, electrics, plastered interior, flooring, heating, double glazing and full installation. What you see is what you pay.

All prices include VAT Foundations included Electrics included Fully installed 10-year guarantee

40 x 5-star Google reviews As featured in the Daily Mail and Metro Surrey, Berkshire, Buckinghamshire and West London One contact from design to installation

We know price is one of the first things people want to understand when they start thinking about a garden room. That is why we have put everything on this page rather than making you call to find out. Below you will find starting prices for each of our three designs, typical prices by size, a full breakdown of what is included as standard, and a guide to the upgrades that can take a garden room further.

Every My Retreat garden room is bespoke. No two are ever identical. But the prices below will give you a clear and realistic picture of what your project is likely to cost.

Choose Your Design

We offer three design families. The Ashton and Clifton both have clear starting prices. The Westbury is fully bespoke with no standard starting point, so we show a typical range instead.

Ashton

Clean lines. No overhang. Built for smaller gardens.

Starting from

£18,032

inc. VAT and full installation • 2.9m x 2.1m

Thermowood front, metal box profile to the other three sides, single UPVC door and small opening window. With Thermowood to two elevations: £19,066.

The Ashton has a flush roofline and secret-fixed cladding. It works brilliantly in compact gardens or wherever you want a contemporary look without a canopy. No overhang means no wasted space at the boundary.

Popular Sizes (Thermowood to two elevations, metal box profile to two)

2.9m x 2.9m£19,563

4m x 2.9m£22,927

5.2m x 3.4m£27,338

7m x 4m£33,362

Design your Ashton and get a price within one working day See full Ashton details

Design It in Minutes, Get a Price Within One Working Day

Our free 3D configurator lets you choose the style, size, cladding and doors. Send it to us and we will come back with a price within one working day. Or if you would rather talk it through and for all options, call Kieron directly.

Design in 3D and get a price within one working day Call or message Kieron

How Size Affects the Price

From a compact 2.9m x 2.1m up to a full 8m x 4m, here is what different sizes typically look like in practice and what they cost. Everything under 30m2 falls within Permitted Development in most cases, which usually means no planning permission is needed. We can tell you what the rules are, but confirming the position for your own property is your responsibility and should be checked with your local planning authority or an architect before going ahead.

2.9 x 2.1m

5.88m2

Compact home office, reading room, treatment room or craft space

From £18,032

4 x 3m

12m2

Home office for two, garden gym, studio or comfortable lounge

From ~£26,500

5.5 x 3.5m

19.25m2

Large office, cinema room, games room or gym with changing area

From ~£34,000

7.5 x 4m

30m2

The maximum under Permitted Development. Full lifestyle room, gym, home bar or multi-use space

From ~£48,000

Planning and building regulations: Garden rooms under 30m2 typically fall under Permitted Development with no planning permission needed. Height is measured overall, not at the eaves. Within 2m of a boundary the total height must not exceed 2.5m. More than 2m from every boundary, a flat or mono-pitched roof can go up to 3m. Some customers choose to go taller, up to 3m, with planning permission. This is common for gyms or where the room sits more than 2m from the boundary. Rooms over 30m2 need building regulations approval. We can tell you what the rules are, but confirming your planning position is your responsibility as the property owner and should be checked with your local planning authority or an architect.

What Every Garden Room Includes

Other companies quote a low number and add foundations, electrics and installation on top. We do not. Here is exactly what comes with every My Retreat build. If you are weighing up several quotes, our guide on how to compare garden room quotes sets out the 10 questions to ask every builder.

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Concrete Pile Foundations

Installed to your ground conditions. Assessed site by site before work starts.

⚡

Electrical Connection

Standard allowance covers a run of up to 20m from your house. Longer runs are quoted upfront.

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Consumer Unit, Lights and Sockets

A dedicated consumer unit, plus the lights and sockets you choose. Pick an electrical package in the configurator to see the overall cost, then at the survey Kieron goes through every option so you choose exactly the electrics you want.

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Wi-Fi Heating

A 2kW Wi-Fi controlled panel heater. Warm the room before you even leave the house.

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Double Glazing Throughout

uPVC or aluminium doors and windows. Your choice of style, colour and configuration.

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Plastered Interior

Smooth skim-plastered walls ready to paint, just like your house. Not lined or boarded.

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Flooring and Skirting

Howdens Professional V Groove laminate flooring and white MDF skirting boards as standard.

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EPDM Rubber Roof

25+ year life expectancy. No felt, no tiles, no maintenance.

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Project Management

Kieron personally oversees every build from design to handover. One contact throughout.

Optional Upgrades

Every garden room is bespoke and these are the upgrades our customers most often choose. Each one is priced transparently on your personal quote from Kieron.

Aluminium bifold or sliding doors

Glass corners (doors meeting doors)

Cedar or Hardie Board / Cedral cladding upgrade

Increased wall height (2.5m to 3m)

Air conditioning (heating and cooling)

Toilet or shower room

Acoustic plasterboard for studios and cinemas

Bronze or tinted glass

Living or sedum roof

Timber or composite decking

Extended electrical package

Building regulation specification

Want to price up an upgrade? The 3D configurator covers most standard options, and we price your design within one working day. For all options including bathrooms, acoustic fit-outs, or anything unusual, call Kieron on 020 3818 5911 for an honest conversation.

What Affects the Final Price?

All garden rooms are priced transparently, but a handful of site-specific factors can adjust your final figure. We always confirm these before work starts.

Factor	How it affects your price
Size	The biggest driver. Floor area determines materials, labour and time. Send us your design from the 3D tool and we price it for you.
Cladding	Starting prices use Thermowood with metal box profile cladding to the remaining sides. All four elevations are priced at design stage. Hardie Board / Cedral adds roughly £1,250 to £3,150 and Western Red Cedar roughly £2,900 to £5,300, depending on size.
Doors and windows	uPVC is standard. Aluminium bifolds, sliding doors or glass corners are priced upgrades, typically £1,500 to £8,000 depending on the configuration.
Electrical cable run	The standard allowance covers an average property. If your fuseboard is much further than 20m from the garden room, the additional run is costed and confirmed upfront.
Ground conditions	Surrey clay can require deeper piles on some plots. We assess each site and confirm the foundation spec before work starts.
Extras and upgrades	Bathrooms, air con, acoustic plasterboard, decking, living roofs. All priced and agreed before any work begins.
Building regulations (over 30m2)	Garden rooms over 30m2 need Building Regulations approval. We manage the submission. This adds some cost and lead time but opens up much larger builds.

Garden Room Pricing: Common Questions

How much does a garden room cost in Surrey?

A fully installed, fully insulated garden room in Surrey starts from £18,032 for a compact 2.9m x 2.1m Ashton (Thermowood front, metal box profile to three sides, single door and small window). A 4m x 2.9m starts at £22,927 in Thermowood, and a 7m x 4m at £33,362. Cedar and composite cladding, and the Clifton canopy, add to those figures. All My Retreat prices include VAT, foundations, electrics, plastered interior, flooring, heating and installation.

Are your prices genuinely all-inclusive? What is not included?

Yes. Foundations, electrics, plastered interior, flooring, heating, double glazing and installation are all included. The only variables that can change your final price are: the electrical cable run if it is unusually long (we confirm this upfront), ground conditions that need deeper piles (assessed and quoted before starting), and any optional upgrades you choose to add. We commit to no surprises.

Do I need planning permission for a garden room in Surrey?

Most garden rooms under 30m2 fall under Permitted Development, which usually means no planning permission is needed. Height is measured overall, not at the eaves: a maximum of 2.5m within 2m of a boundary, or up to 3m with a flat or mono-pitched roof where the room sits more than 2m from every boundary. Exceptions include conservation areas, listed buildings, and plots where the room would sit forward of the house. We can tell you what the permitted development rules are, but confirming the position for your own property is your responsibility and should be checked with your local planning authority or an architect before going ahead.

How do I get a price within one working day?

Use our free 3D design configurator to choose the style, size, cladding, doors and windows, then send it to us. If it arrives during working hours, Kieron calls you the same day to check the details and sends your design and an accurate installed price straight after the call. Out of hours, he calls the next working day, and weekend designs get a call on Monday. Alternatively, call Kieron on 020 3818 5911 and he will build it with you over the phone.

Can I get a garden room over 30m2?

Yes. While most of our builds stay under 30m2 to avoid building regulations, we do build larger rooms under building regs. We manage the full approval process. Call Kieron to discuss larger builds as these are quoted individually.

Do garden rooms add value to a Surrey home?

In most cases, yes. Surrey estate agents increasingly list garden rooms as a key selling feature, particularly fully insulated, fitted rooms that work year-round. A well-built garden room can add more value than it costs in the right Surrey postcode.

Where do you install garden rooms?

We primarily serve Surrey, including Guildford, Woking, Weybridge, Cobham, Esher, Reigate and Epsom. We also cover Berkshire, Buckinghamshire and West London. If you are not sure whether we cover your area, just call.

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Ready to Price Your Garden Room?

Design your room in a few minutes with our free 3D configurator and get a price within one working day, or speak directly with Kieron for a relaxed, no-pressure conversation about your project.

Design in 3D and get a price within one working day Speak with Kieron