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A Loft or Garage Conversion Could Be The Perfect Solution

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Loft Conversions

There are basically two different types of loft conversions - a "Roofline" conversion, and a "Dormer" conversion.

The various options on “Dormer” conversions are limitless.


"Roof Line" Loft Conversion

This type of loft conversion is limited to the existing volume currently within the roof space. We would create a room/rooms within the
existing shape of the roof at present using Velux windows for light and ventilation. We would not extend or alter the shape of the roof with
this type of conversion.


Under standard planning regulations, planning permission is not required for this type of conversion. However, a full set of Architect's plans would

Roof Line Image

be necessary along with the calculations of a Structural Engineer. This will be necessary to justify all current building regulations.


However, if your property is in a conservation area, there may be restrictions on the design and shape of the Velux windows to be installed. Complete Conversions will be more than happy to identify whether your property is in a conservation area or not.


"Dormer" Loft Conversions

Dormer's have been referred to in many different ways, Dormer windows, Dormer extensions, roof extensions, attic extensions.


A brief description of a Dormer would be an extension of an existing
roof shape. Consider a most typical terraced property/town house where the roof would start at the gutters at the front of the house rising to the Apex, the ridge in the centre of the house, then falling again down to
the gutters at the back of the house. This most typical roof shape does

Dormer loft Image2

not usually produce a substantial habitable room, unless the house is unusually large. So with this type of roof structure, it would be advisable to extend the roof and create a Dormer (usually to the rear of the property.)


The size, shape and general design of this or any other Dormer can vary greatly. This type of conversion may also not require planning permission. Householders have what is known as a permitted development allowance. This permitted development allowance is usually measured in cubic metres. The amount allowed (cubic metres) varies from property to property. Generally, the allowance would be between 50 and 70 cubic metres or 20% of the overall volume of the property.


Compete Conversions can calculate the required volume for any dormer and whether or not this would fall within permitted development rights. Please note, there are further guidelines whilst trying to identify if your project would be allowed under permitted development rights.

These are;

  • No part of the new structure must rise any higher than the existing highest part of the roof at present (usually the ridge line.)
  • Looking down on a plan, no part of this new structure must exceed the current floor plan boundary.
  • The property must not be in a conservation area.


Again, as per roof line conversions, even if planning permission is not required, Architect's plans along with Structural Engineers calculations will be necessary to conform and to comply with the current building regulations.

This step by step guide will give you an idea of the different stages a loft conversion undertakes  
First we erect the scaffolding at the front of the property. 
Timber and materials delivered
All the timbers and materials are delivered along with the skip.
Entering the Roof
A small hole is made in the front of the properties roof in which we gain access to the loft and to allow sunlight in. In the early stages of the loft conversion we do not open up the ceiling as this stops any dust / dirt going into the landing of your house.
Steel beams and floor joists 
Steel beams are installed into the brickwork and floor timber joists are fitted in the steel beams. all this work is done by the small hole in the roof.

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How to reduce the cost of your loft conversion project!

You now have a very good idea of how much your loft conversion is going to cost, even though it represents good value, if you can't afford that, or your budget simply doesn't stretch to that much. Here's what to do next. With help and advice from Complete Conversions (CC) you may be surprised at what you can get for your money!


The first consideration is, exactly how far short is your preferred budget, from the itemised costs you have from Complete Conversions (CC)?


If your budget covers over 75% of the itemised quoted costs, then you could consider the VAT saver scheme.


Option 1 the vat saver

This scheme works by reducing the costs payable to us (CC). This works by us (CC) outsourcing some of the labour element of the overall loft conversion costs to an individual contractor who is not vat registered. We can do this as we have extensive lists of non VAT registered contractors who we have recommended over the years.


What ever proportion of the overall costs we relocate here will not accrue vat, potentially saving you £1000's and you can rest in the knowledge that these individuals have been checked by us for quality and service.

If you are short of the quoted cost by much more, you can consider the following.


Option 2 Part build or shell build solutions

This scheme works by us (CC) completing the major structural and external sections of the loft conversion project.


We would recommend that at least the following sections are completed by experts such as the Loft Specialists.

  1. Compile detailed Architectural plans for the purpose of obtaining planning and building approval from your local authority (LA).
  2. Compile detailed structural engineer's calculations for the approval of LA.
  3. Erect safe and secure scaffolding.
  4. Supply and construct the independent steel flooring system.
  5. Supply and construct all external dormer windows, Velux windows, or roof alterations. Including the external finishing of roofing structure and weather proofing.
  6. Remove / reconstruct existing roof rafters / alter any structural components.
  7. Install all new fire protection.
  8. Install staircase.

Leaving you or others you contract in to do the following

  1. Supply and install all electrical requirements
  2. Supply and install all plumbing requirements
  3. Supply and install all heat loss insulations
  4. Supply and install all plaster boarding
  5. Wet skim all areas to be decorated
  6. Supply and install final fix carpentry such as skirting boards, doors, stair handrails and cupboard closets.

If you decided to take advantage of option 2 you could save up to 40% off the costs of the loft conversion.



Planning & Building Regulation

Planning permission is not normally required. However, permission is required where you extend or alter the roof space and it exceeds specified limits and conditions.


Under new regulations that came into effect from 1 October 2008 a loft conversion for your home is considered to Planning permission and building regulations be permitted development, not requiring an application for planning permission

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Frequently Asked Questions

If you are thinking of having a loft conversion or garage conversion you will probably have many questions. We hope we can answer some of those now, but if you have any further questions or wish to arrange a survey and quotation, please give us a call.

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