Development, Refurbishment or Fit-Out of Buildings

Where a building is developed, refurbished or fitted-out directly by the taxpayer, capital allowances on Plant and Machinery are determined by reference to and analysis of the actual development expenditure.

The value of qualifying plant and machinery in a building will vary depending on a number of factors, including the building size, specification and location. However as a guide, the cost of constructing an air conditioned office building may be made up of as much as 35% to 40% plant and machinery, whilst this could still be 20% to 30% on a less sophisticated building.

Even the most basic industrial and retail properties may contain qualifying plant and machinery accounting for up to 10% of their construction cost, proving that irrespective of the type of property, substantial savings can be made.

On refurbishment or the fitting-out of property, up to 75% of the expenditure could be eligible for capital allowances.


The information contained in our website is believed to be correct, but there may be errors or omissions for which PJB cannot be responsible. It is therefore essential to take advice on specific issues.


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Purchase Price

This is the original or anticipated purchase price or development cost of your property.

Do not enter the current value here.

Building Type

Please provide the type of building you are looking to claim allowances on.

Note: You will be able to add further information about the type of building in the next step.

Your options here are;

  • Office.
  • Retail: Including high street, shopping centres and retail warehouses.
  • Mixed Use.
  • Industrial: Including warehouses and distribution centres.
  • Other: Leisure, hotels, casinos etc.
Building Category

Please select the description that best suits your property.

Other Information

Please provide any additional information about your property that you may consider appropriate.

Floor Area

Please enter the total floor area of the property.
You can provide either square footage or metres, but only use figures here.
The floor area you specify can either be gross or net internal space.

Floor Area Units

Please select the type of area e.g. Metres or Feet
and if the measurement has been taken as net or gross internal space.

Date of Purchase

Please enter the approximate month and year of purchase, or
if you have developed the property, please provide the
approximate date of completion.

Location Of Property

Where is the property located? Please provide town/city, and country.