Loft an Attic Conversions - Design and Construction - High Quality and Beautiful Finishes at London's Cheapest Prices
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Attic and Loft Conversions London

Structural Design and Build of Wow Factor Loft Conversions in London - 10 Year Insurance Backed Year Guarantee!

Most London houses have around 25% of total floor space in the attic . Converting this floor space into a highly desirable usable loft adds greatly to your living space and makes sound financial sense. A loft conversion will add thousands to the value of your home especially in areas of high property prices and low availability such as London. provide property owners with a one stop solution for attic and loft conversion including

  • An initial consultation to ascertain your ideas and possible design solutions
  • A site survey by an architectural structural engineer
  • Planning Application Advice and Help
  • Applications regarding Building Regulation Control
  • Professional Project Management

We are also happy to work with your own loft designers and architects.

Our Price Promise

Our outstanding reputation is based on producing stunning work with beautiful wow factor finishes. We will never compromise the quality of a loft conversion by taking short cuts and using sub standard techniques in order to save on building costs. will charge you a fair and completive price, giving real value for money, without compromising either the quality or safety of the work involved - beautifully finished loft conversions at the cheapest possible prices in London. We will also fund the first £10,000 of all work - this is your assurance of our professionalism and commitment. Our outstanding reputation for Service Excellence and Quality Workmanship is the reason why our customers continually recommend us to new clients .

Good News! The minimum height regulations have changed!

Lofts now need only reach the minimum height at the access and entry point to convert into a habitable room built to Building Regulations Approval. Height should be 1.8 m minimum at the edge of a stair with 1.9 m at the centre line if the ceiling is sloping - See our Loft Height PDF Guide

Attic and Loft Portfolio >>

Types of Loft Conversion

There are Three Basic Tpes of Loft Conversion

Loft Types

  • Dormers - front, rear and side
  • Mansard loft conversions - expensive
  • Velux Loft conversions - relatively cheap

Planning Permission

Loft Planning Applications

Planning permission for your loft may not be required if your loft design falls under 'Permitted Development '.

Certain types of property are not covered by these rules and will need planning permission.

Properties not covered include Heritage Buildings, properties in areas of outstanding natural beauty and properties in Conservation Areas.

Local Councils can also remove the rights to Permitted development in certain areas.

The best thing to do is to call you Local Council's Planning Department and ask if your loft conversion falls under the Permitted Development Rules.

Permitted Development

Rules for Converting Lofts

If brief, the rules for permitted development, when applied to loft conversions are as follows -

No part of the loft extension can be higher than the existing roof.

No part of the new loft can can exceed the plane of an existing roof slope that fronts onto an existing public road or foot path.

If you live in a terraced house the loft cannot increase your living space by more than 40 cubic metres.

In the case of semi detached or detached house this is increased to 50 cubic metres. Most houses in outer London will fall under Permitted Development Rules.


Loft Ventilation and Insulation Issues

Building Regulations now specify the rate of acceptable heat loss in newly created rooms in existing building - this includes lofts.

New lofts must be insulated to acceptable standards and constructed so as to avoid 'cold spots'

Good loft design and construction will minimise this problem.

The loft must be constructed so as not to restrict ventilation and prevent the build up of condensation.

During the loft construction process additional roofing vents may need to be added to ensure adequate air flow.

Case Study 1 - Mansard Loft Conversion in Chelsea London

A Loft Conversion in a Conservation Area

Mansard Loft ConversionMansard Loft Conversions are usually done to the rear of a building. The conversion has a flat roof with a back wall which slopes at a 72 degree angle. The installed windows are usually built within small dormers. Mansard Loft conversions need planning permission and are particularly suited to properties in conservation areas.

  • Mansard Lofts Require Planning Permission
  • These lofts tend to have more usable space
  • An aesthetically pleasing loft design
  • Fits in well with existing building
  • Suited to properties in conservation areas
  • A favourite with council planning departments
  • These conversions tend to be expensive

The loft conversion involved making structural changes which involved removing rotten joists and supporting walls which were replaced with steels.

Loft Conversion Photo Portfolio >>

Building Regulations

London Extension Builders

All work on your loft must comply with Building Regulations. These are a set of minimum building standards which your loft must comply to.

Download our PDF Loft Construction Files

With over 30 years of experience of Loft and Attic conversions know that our design and construction techniques will comply to all necessary building regulations.

Party Wall Agreements

If you converting a loft in a semi detached or terraced house you will need to ensure that any work on walls that you have in common with your neighbours conforms to the regulations specified in The Party Wall Act 1996.

You must let your neighbours know of any work being done to shared walls. In the case of loft conversions neighbours should have absolutely no objections but is good manners to let them know in advance about the loft conversion and any disruption that may be caused during the building process.

If your neighbour refuses to cooperate and refuses to fill out the Party Structure Notice they will need to hire a surveyor who will impartially assess the standard of work being carried out and ensure that it meets all necessary requirements.

It is worth noting that your neighbours cannot stop the work from happening but may have a bearing on how and when it happens.

Fire Safety

Loft Fire Regulations

The Fire Safety Regulations relating to converting lofts and attics are much more rigorous than for other types of house extensions and conversions.

Converting a loft adds a third floor to your house and the fire risk is therefore greater than in a two storey property.

Good loft design and construction takes into account fire safety by minimising the risks involved -

  • Smoke Detectors Installation
  • Escape Routes
  • Minimising Internal Fire Spread
  • Minimising External Fire Spread will advise you on the best construction and design techniques in order to comply with fire safety regulations

Download the PDF Loft Fire Safety Guide.

Case Study 2 - Velux Loft Conversion in West Hampstead

A Budget Loft Conversion in London

Velux Loft ConversionThe client decided on this type of Loft construction for three reasons. The first was that no planning permission was required so the build could start almost immediately.

The second was due to the limited budget the client had in order to complete the build.

The third reason was that a Velux Conversion gave a view of tree tops and sky as opposed to overlooking existing terraced buildings.

  • Velux Conversions leave the roof aspect unaltered
  • Very popular in Victorian houses
  • Planning Permission is not normally required
  • Construction proceeds relatively quickly
  • Usually the cheapest type of loft conversion


Recent Building Projects >>

Loft and Attic Conversion - The Process

Loft conversions - Timing, Procedures and Disruption

No Matter what type of loft conversion you decide on the basic process is the same. The loft conversion work will be organised
around your schedule without any catastrophic disruption to your daily routine.

You will always have direct access to your onsite 'hands on' project manager to raise any concerns or issues you may have.

  • The first step is arrange a chat with
  • We will help you decide on what your best options are to make the most of your loft conversion
  • If required, we will give you the contact details of previous clients for references and an appraisal of past work
  • Architects will visit your house and produce a set of drawings
  • Once you are happy with the design the drawings are signed of and, if required, can be sent to the council on your behalf
  • On council approval we will arrange a start date and schedule with you
  • At this point it is wise to let the neighbours know what is happening
  • Materials and Equipment arrive and scaffolding is erected.
  • The project manager will ensure that quality is maintained at all times.
  • He will also ensure that structural recommendations and building regulations are adhered to.
  • Once the project is finished a Completion Certificate and a Part P Electrical Safety Certificate will be issued
  • Finally, sit back and enjoy your new wow factor loft conversion - guaranteed for 10 years

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Hip to Gable Loft Conversion in Kensington

A Hip to Gable Loft Conversion means that the sloping roof at the end of you property is removed (the hip side) and replaced with a flat gable end. The creates a much bigger loft space


Rear Dormer Loft Conversion in Westminster

A dormer loft conversion creates a square end which projects out from the sloping roof, creating plenty of floor space and height in your loft. Dormers can go on the front, rear and side of your property.