Garage Conversions in Barnet: High Barnet, Finchley and N2/N3 Expert Guide 2026

Barnet is one of North London’s most family-friendly boroughs, with many properties featuring integral or attached garages that are rarely used for parking. Converting your garage into valuable living space is one of the most cost-effective ways to add a bedroom, home office, or utility room.

At Fixiz LTD, we specialise in garage conversions across Barnet. This guide explains everything you need to know about transforming your garage.

Why Convert Your Garage in Barnet?

Barnet properties offer excellent garage conversion potential:

  • Many 1930s-1960s homes have integral garages
  • High property values mean strong ROI on conversions
  • Growing need for home offices and extra bedrooms
  • Garages often unused for vehicle storage
  • Adds 10-15% to property value

Planning Permission for Garage Conversions

Most garage conversions in Barnet don’t require planning permission under Permitted Development if you:

  • Don’t extend beyond the existing garage footprint
  • Keep the work internal to the existing structure
  • Match external materials to the existing house
  • Don’t create a separate dwelling

However, conservation areas in Totteridge and Monken Hadley may have restrictions.

Home Office

The most popular choice since 2020, creating dedicated workspace. Costs from £12,000-£18,000.

Extra Bedroom

Ideal for growing families or rental income. Costs from £15,000-£22,000 with en-suite.

Utility Room/Kitchen Extension

Practical addition freeing up kitchen space. Costs from £10,000-£15,000.

Playroom/Games Room

Perfect for families with children. Costs from £8,000-£14,000.

Home Gym

Dedicated fitness space with proper flooring. Costs from £10,000-£16,000.

Building Regulations Requirements

All garage conversions require Building Regulations approval covering:

  • Damp proofing and insulation
  • Structural alterations (floor, walls, roof)
  • Electrical and plumbing work
  • Fire safety and escape routes
  • Ventilation requirements

Average Costs in Barnet 2026

Conversion TypePrice Range
Basic (single garage)£8,000-£15,000
Standard with insulation£12,000-£20,000
With en-suite bathroom£18,000-£28,000
Double garage conversion£20,000-£35,000
High-spec finish£25,000-£40,000

How Long Does a Garage Conversion Take?

Typical timelines:

  • Basic conversion: 2-3 weeks
  • Standard conversion: 3-4 weeks
  • With bathroom: 4-5 weeks
  • Double garage: 5-6 weeks

Why Choose Fixiz LTD for Your Barnet Garage Conversion?

  • Local expertise in Barnet properties
  • Full project management from design to completion
  • All work guaranteed and fully insured
  • Transparent pricing with no hidden costs
  • Free site survey and quotation

Frequently Asked Questions

Q: Do I need planning permission for a garage conversion in Barnet?
A: Most garage conversions fall under Permitted Development, but always check with Barnet Council.

Q: How much value will a garage conversion add to my property?
A: Typically 10-15% of property value, potentially £40,000-£80,000 in Barnet.

Q: Can I convert an integral garage?
A: Yes, integral garages are often easier to convert as they share walls with the main house.

Get Your Free Garage Conversion Quote

Ready to transform your Barnet garage? Contact Fixiz LTD today for a free, no-obligation survey and quote. Call us on 020 XXXX XXXX or fill out our online form.

Serving High Barnet, Finchley, Whetstone, Totteridge, Mill Hill, Friern Barnet, and all N2, N3, N11, N12, N20, EN4, EN5 postcodes.