Loft conversion specialists London, United Kingdom

Nuhous is the leading London, United Kingdom based loft conversion specialist. Design and build of loft conversions such as dormer loft conversion, hip to gable loft conversion, mansard loft conversion and l shaped loft conversion on terraced, semi, town houses or detached houses and in the London and outside of London.


Loft Conversions From £25k 

Loft Conversions London Design and Build Company

Do i need the planning permission for my Loft Conversion?

Provided your property has its permitted development rights in place and you are not planning any changes to the front elevation of the property, planning permission is generally not usually required provided the loft conversion is designed to satisfy the recommendations set out in the Town and Country Permitted Development Act.

Householder planning consent is required however if you decide to extend or alter the roof space and it exceeds the specified limits and conditions of the permitted development order which came into effect on 1st October 2008.

This guidance is relevant to domestic houses only.  Properties divided into flats or maisonettes will require full planning approval for a loft conversion, they may also require landlord/freeholder consent as well.

Building Regulations Approval

It is important to remember that loft conversions will require building control approval, and building regulations plans and calculations will be required for approval of building control checking engineer prior to commencement of work on site.

Building regulations approval is required to convert your loft or into an habitable part of your home.

The building inspector will want to make sure of amongst other things, the following:

  • The structural strength of the new floor is sufficient to take the live and dead loads imposed by new fixtures, furniture and persons using the loftspace.

  • The stability of the existing structure (including the existing roof) is not compromised by the loft conversion

  • Safe escape from the loft room (generally classified as 3rd floor) in the event of fire

  • Safely designed stairs providing access to the new loft room.

  • Appropriate sound insulation is incorporated into the design for between the loft conversion and the rooms below.

  • Upgrading of insulation to ensure a warm and energy efficient additional space within your home.

  • It is also important to consider that your loft conversion will likely require you to obtain consent from your neighbours under The Party Wall etc. Act 1996.

Is it Feasible?

Nuhous provides a full range of loft conversions for different property types. Did you know that a loft conversion can take as little as 4 to 6 weeks and can increase your property value by an average of 21%. as quoted from Leading Insurance Company

This is a great way to add extra space to your home. It has never been a better time to start your loft conversion project! 

Get in touch with us for free no obligation quote.  Prices From £25K


Permitted development guidelines

Subject to the following limits and conditions planning permission is generally not required:


  • The volume allowance of 40 cubic metres additional roof space for terraced houses*

  • The volume allowance of 50 cubic metres additional roof space for detached and semi-detached houses*

  • There cannot be an extension beyond the place of the existing roof slope of the main elevation facing the highway.

  • No extension can be taller than the highest part of the existing roof

  • Materials used in the extension must be similar to the materials used on the existing house

  • No balconies, verandas, or raised platforms (Juliet balconies are permitted)

  • All side-facing windows must be obscure glazed; this includes any opening 1.7 metres above the floor

  • In designated areas, roof extensions are not permitted development

  • Aside from hip and gable roof extensions, all roof extensions are to be set back as far as possible, and must be at least 20 centimetres from the eaves.

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What type of Loft Conversions is there

Loft conversion types and about them


Dormer is large flat roofed box which is also considered a loft extension because they dramatically boost the size of your usable room space.


Hip To Gable

Major changes to the roof is required, the wall will require building up but the results are worth it. This type of loft Conversions are also known as Full Width Dormers. 



Mansards are essentially mega-dormers. The main difference being the front wall, which leans back at an angle becoming in effect a very steep front roof slope. 


L Shaped Lofts

Very popular option of inner part of london where houses have existing two storey extensions. Great space and up to 3 rooms can be added.

Popular Lofts and Cost of Loft Conversions 

Most loft conversions involve adding an extra floor to an existing two storey house or bungalow. Popular choices are Dormer with front and rear Velux, Hip to Gable, Mansards or L shaped loft conversions.

Our Services

If you have a project or are planning to start one we would like to hear from you! 


Architecture services

United Kingdom

Architectural design services, architecture services, planning or building regulations drawings, 

project management, design and build company for loft conversions or home extensions... 

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Architectural design services, project management, design and build company for loft conversions, house extensions and new house builds. Architecture services online.

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