Loft Conversion London | Expert Loft Conversions in North London

Looking for a professional loft conversion in London? Fixiz Ltd specialises in high-quality loft conversions across North London. Transform your unused loft space into a beautiful bedroom, home office, or living area with our expert team.

Why Choose Fixiz for Your Loft Conversion in London?

                                                                                    Dormer loft conversion London 

With years of experience delivering exceptional loft conversions throughout London, we understand what homeowners need. Our team of certified builders and project managers ensure every loft conversion is completed to the highest standards, on time and within budget.

Our Loft Conversion Services Include:

• • Dormer Loft Conversions – The most popular choice, adding significant headroom and floor space

• • Hip to Gable Conversions – Ideal for semi-detached and end-terrace properties

• • Mansard Loft Conversions – Maximum space with a distinctive flat roof design

• • Velux/Rooflight Conversions – Cost-effective option using existing roof structure

• • L-Shaped Loft Conversions – Perfect for Victorian and Edwardian terraced houses

Loft Conversion Cost in London 2026

Loft conversion costs in London typically range from £35,000 to £70,000+ depending on the type and size. Here’s a general guide:

Type	Average Cost
Velux/Rooflight	£35,000 – £45,000
Dormer	£45,000 – £60,000
Hip to Gable	£50,000 – £65,000
Mansard	£55,000 – £75,000

Do I Need Planning Permission for a Loft Conversion?

Most loft conversions in London fall under Permitted Development rights, meaning you won’t need planning permission. However, you will need:

• • Building Regulations approval

• • Party Wall Agreement (for terraced/semi-detached properties)

• • Structural calculations

Our team handles all paperwork and approvals as part of our service.

The Loft Conversion Process

1. • ① Free Consultation – We visit your property to assess feasibility and discuss your requirements

1. • ② Design & Planning – Our architects create detailed plans for your approval

1. • ③ Building Regulations – We submit all necessary applications

1. • ④ Construction – Typically 6-10 weeks depending on complexity

1. • ⑤ Completion – Final inspection and handover

Areas We Cover for Loft Conversions

We provide loft conversion services throughout London including:

• • North London (N11, N12, N13, N14, N20, N21)

• • Barnet, Enfield, Haringey, Hackney

• • Camden, Islington, Brent, Waltham Forest

Get a Free Loft Conversion Quote

Ready to transform your loft? Contact Fixiz today for a free, no-obligation quote. Call us or fill out our contact form to discuss your loft conversion project.

Fixiz Ltd – Your trusted loft conversion specialists in London.

Explore our other property conversion services: garage conversion and house extension. We also offer comprehensive construction and renovation services across North London.

How Much Value Does a Loft Conversion Add?

A loft conversion is widely considered the most valuable home improvement you can make. In London, a professionally completed loft conversion can increase your property value by 20% to 25%. For an average North London property worth £550,000, that translates to an uplift of £110,000 to £137,500, making it one of the smartest investments for homeowners.

The key to maximising your return is choosing the right type of conversion for your property and ensuring all work is completed to Building Regulations standards with proper sign-off. A completion certificate is essential for mortgage and resale purposes, and Fixiz manages this entire process for you.