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Garage Conversions 

Converting your garage into a living space is definitely a home improvement project worth considering, especially if you have an attached garage that is simply gathering clutter.

Having a Garage converted is much more cost-effective than building an extension and creates minimal disruption to your living conditions while work is underway.

Garage Conversion Cost

The cost of a garage conversion varies depending on the complexity of the work, the size of the garage, and the finishes chosen. A single garage conversion can range between £7,500 and £20,000. Also, remember that VAT will be added at 20% to the cost.

Promotional offer till October 2025 

A limited period promotional offer on integral single garage conversions in the Hertfordshire region only.

Conversion Package 1

Conversion of the existing garage door into a front-facing window.

  • The garage door is removed to facilitate the installation of a new brick or rendered front wall, which features a front-facing window.   

  • If required, an internal door section is cut out to serve as an entry point, connecting the primary residence to the integral garage, which includes framework and a fire-rated door. 

  • A new subfloor is to be constructed and insulated in accordance with building regulations and guidelines.

  • Walls to be insulated and plasterboarded to meet building regulations.​

  • Plastered finish to all walls and the ceiling.​

  • Up to (5) Double electrical points.​

  • Up to (6) LED downlight spots.

  • Electrical or Gas heating system.

  • Walls are decorated by default in white or a choice of colour.​

  • Installation of laminate or engineered wood flooring.  

  • Skirting installed and painted in default white.

£16,950.00 

Conversion Package 2

Conversion while retaining the garage door.

  • The garage door will stay in its current position, with a new stud wall installed directly inside, completely blocking access from the interior.

  • If required, an internal door section is cut out to serve as an entry point, connecting the primary residence to the integral garage, which includes framework and a fire-rated door. 

 

  • A new subfloor is to be constructed and insulated in accordance with building regulations and guidelines.

 

  • Walls to be insulated and plasterboarded to meet the requirements of building regulations.

  • Plastered finish to all walls and the ceiling.

  • Up to (3) Double electrical points.

  • Up to (4) LED downlight spots.

 

  • Electrical heating system.

  • Walls are decorated by default in white.

  • Installation of laminate or engineered wood flooring.     

  • Skirting installed and painted in default white.

​​​​​

£10,590.00 

Garage Convertion example with garage door remaining 

Garage Front.png

The converted garage door, which was at the end, had to align with the aesthetic of the neighbouring garage fronts to ensure uniformity within the architectural context. This was due to obtaining planning permission.

New French Doors Into Garage Conversion.png

"We have enhanced the living area by replacing an old wall radiator with a modern upright radiator positioned on the left. Furthermore, we created a more open environment by cutting through from the living room into the garage, featuring sophisticated French doors that facilitate access to the newly converted garage."

Inside Garage Conversion.png

This project involved cutting through the side wall to establish a new access point to the garden, as well as installing a new window to enhance the influx of natural light. The result is a refined and inviting new space, ideal for and office or dinning room.

Garden Side Door into Garage Conversion .png

Side door from the outside

Rear Window Garage Conversion.png

Rear window from the outside

Day of compleation Video 

Garage Conversion Ideas

Garage conversions can transform an underutilised space into a valuable living area, offering various possibilities like home offices, playrooms, extra bedrooms, or even a gym. Converting your garage can add significant value to a property and is often more affordable than traditional extensions. Planning permission is generally not required for internal conversions, but building regulations must be met. 

 

Here's a breakdown of popular garage conversion ideas and considerations:

 

Garage Conversion Options:

 

  • Home Office/Study Garage Conversion:
    A quiet, dedicated space for working from home, with options for soundproofing and natural light. 

  • Playroom/Media Room Garage Conversion:
    A fun, versatile space for children or adults, with options for entertainment systems and comfortable seating. 

  • Extra Bedroom/Guest Suite Garage Conversion:
    Ideal for accommodating guests or family members, with the potential for an ensuite bathroom. 

  • Gym Garage Conversion:
    A space for exercise and fitness, with options for equipment storage and ventilation. 

  • Utility Room/Storage Garage Conversion:
    A practical space for laundry and storage, often connected to the main house.

 

  • Granny Annexe Garage Conversion:
    A self-contained living space for older relatives or family members needing independence. 

 

Planning and Considerations:

  • Planning Permission for a Garage Conversion:
    Generally, internal conversions that don't involve enlarging the building are not required. However, planning permission may be needed if converting a standalone garage into a separate dwelling. 

  • Building Regulations for a Garage Conversion:
    Must be adhered to, especially regarding insulation, ventilation, electrical installations, and fire safety. 

  • Structural Requirements for a Garage Conversion:
    Examine the existing structure for soundness, including the roof, walls, and floor. 

  • Insulation and Ventilation for a Garage Conversion:
    Garages are often poorly insulated, so proper insulation and ventilation are crucial. 

  • How long does it take to convert a garage?
    A single garage conversion typically takes 3-4 weeks, depending on the complexity of the job.

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It's worth noting that a garage conversion can increase a property's value by up to 30%. ​​​

Stag Builders of Hertfordshire Limited is reputable and well-established. We are your local builders in Hertfordshire, specialising in garage conversions, house extensions, and home renovations.

The primary areas in Hertfordshire where we operate.

 

Builders near me: St Albans, Hertford, Welwyn Garden City, Kings Langley, Bricketwood, How Wood, Welwyn, Knebworth, Brookmans Park, Wheathampstead, Hatfield, Harpenden, Redbourn, Markyate, Berkhamsted, Cuffley, Goffs Oak, Welham Green, Little Berkhamsted, .

Stag Builders of Hertfordshire Limited
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4-6 Spicer Street
St Albans
Herts
AL3 4PQ
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