The Ultimate Garden Room Solution

Converting a detached garage is one of the best ways to add separation between your home life and your work or hobbies. Because the structure is separate from the main house, you get a level of privacy and noise isolation that an attached conversion simply cannot provide.

Why Go Detached?

Noise Isolation: Perfect for music studios, drummers, or noisy hobbies.
Work-Life Balance: Physically leaving the house to go to your "office" helps mental separation.
Guest Privacy: Create a self-contained guest suite where visitors can come and go without disturbing you.

Specific Challenges for Detached Builds

Standalone structures have unique requirements compared to integral garages. Here is how we handle them.

Trenching Utilities

We dig trenches to run armoured electrical cables (SWA) and water pipes from the main house, ensuring all connections are buried safely underground.

Enhanced Insulation

With four exposed walls, detached garages lose heat faster. We use high-spec PIR insulation boards on all walls and the roof to meet U-value targets.

Security Upgrades

We recommend and install insurance-approved locks, exterior sensor lighting, and alarm systems to keep your detached asset secure.

Detached Garage Conversion Costs

Price Estimates

Detached conversions generally cost slightly more than attached ones, typically ranging from £18,000 to £25,000+.

The higher cost is usually due to the need for upgraded insulation (as you lose heat from all 4 walls) and the expense of running utilities across the garden.

What Affects The Price?

Trenching Distance: The further from the house, the more expensive it is to run power and water.
Roof Type: Flat roofs often require complete replacement with a warm deck system.
Wi-Fi: Running a CAT6 data cable for reliable internet access.

Additional Cost Factors

Foundation Check: Detached garages sometimes have lighter foundations. We check if they need underpinning.
Waste Pumps: If the garage is lower than the main drain, you may need a macerator or waste pump system for a toilet.

Access: If we have to carry materials by hand through a side gate, labour costs can increase.
Exterior Cladding: Many clients choose to clad detached garages in cedar or composite to soften the look in the garden.

Common Questions

Can I live in a converted garage?

It depends on planning permission. A conversion for an extra room (office/gym) is fine. If it's a separate dwelling for sleeping (annex), you will need planning permission.

How do I get internet out there?

Wi-Fi extenders can be unreliable. We recommend burying a CAT6 ethernet cable alongside the power cable for a hardwired, high-speed connection.

Will it be warm enough?

Yes. Building regulations for detached structures require high levels of insulation. We often use electric radiators or air conditioning units which provide both heating and cooling.