Garage and outbuilding construction project
Unlock Existing Space

Garage Conversions in Dorking and Across Surrey

Convert an underused attached or detached garage into comfortable, practical living space designed around your household.

Thinking about converting your garage? Speak directly to Tim or Harry
Use the Space You Already Have

A Practical Way to Add Another Room

A garage conversion can create valuable living space without extending the footprint of your home. Johnson Construction & Building Ltd converts attached, integrated and detached garages throughout Surrey.

The work may involve insulation, new openings, structural alterations, services, carpentry and finishing. Our end-to-end approach brings these requirements together through one experienced team.

  • Attached, integrated and detached garages
  • Insulation, flooring and new internal finishes
  • Windows, doors and structural alterations
  • Electrical, plumbing and heating work coordinated as required
Completed modern interior
Conversion Approaches

Designed to Integrate With Your Home

The best approach depends on the garage position, existing construction, intended use and whether any parking space needs to be retained.

01

Integrated Garages

Connect an existing garage more naturally with the adjoining rooms and circulation of the home.

02

Attached Garages

Convert a garage beside the property into living space with suitable insulation and access.

03

Detached Garages

Create a separate office, studio, gym or guest space where services and approvals allow.

04

Partial Conversions

Retain part of a larger garage for storage or parking while converting the remaining area.

Bright completed living space
Flexible New Living Space

Create a Room Tailored to Your Routine

Lighting, heating, insulation, access and storage can be planned around how the converted space will actually be used.

Popular Uses

  • A home office or business workspace
  • A guest bedroom or family room
  • A gym, hobby room or studio
  • An enlarged kitchen or utility space
  • A playroom or entertainment room
An End-to-End Service

From an Empty Garage to a Finished Room

Structural changes and internal finishes are coordinated so the conversion feels like a genuine part of the property.

Discuss Your Project
01

Site Assessment

We inspect the garage construction, access and intended use.

02

Design and Requirements

The layout, insulation, services and approvals are considered.

03

Conversion Work

Openings, floors, walls, services and carpentry are completed.

04

Finishing

Decoration and final details turn the garage into usable living space.

Examples of Our Work

Conversions and Finished Interiors

Browse more examples of Johnson Construction workmanship on the main Projects page.

Garage Conversion Questions

What to Consider Before Converting

Project requirements vary, so the property and proposed work should always be reviewed individually.

Will a garage conversion need planning permission?

Some conversions may fall under permitted development, but requirements vary according to the property, external changes and intended use. Planning and Building Regulations requirements should be checked individually.

Can I keep part of a double garage?

A partial conversion may be possible, allowing one area to remain available for parking or storage while the other becomes living space.

Can you coordinate all the internal work?

Yes. JCB can coordinate structural work, carpentry and the supporting electrical, plumbing, heating and finishing requirements of the agreed project.

Can a detached garage become an office?

This may be possible subject to the structure, insulation, services, access and any relevant planning or Building Regulations requirements.

Have an Underused Garage?

Tell Us What You Would Like to Create

Include your location, garage type and intended use so Tim or Harry can discuss the likely next step.

Request a Garage Conversion Quote

Tell us whether the garage is attached, integrated or detached and how you want to use it.

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