Professional Estimate

Pricing At Date

Forward Look to Mid Construction Period Date

Select quarter and year half-way through building construction period
m
External perimeter of building measured to the outside face of the external walls on the ground floor. If the upper floors have a different plan shape/size to the ground floor enter the average length of the perimeter for the ground and upper floors. External walls are defined as walls which have one face on the outside of the building and include both skins of hollow or composite external walls - measure only the outer skin.
Total area of all floors measured inside inner face of external walls measured over voids stairwells and walls
Average area of basement floors in the building measured inside inner face of external walls
m
m
m
m
Enter number of staircases/stairwells in building. A staircase starting on the ground floor and finishing on the 8th floor is counted as 1 no.)
%
Enter approximate percentage of area of external walling occupied by windows
Enter the total number of door leaves opening to the outside of the building. For each double door count 2 no. leaves
Enter the total number of door leaves not opening to the outside of the building. For each double door count 2 no. leaves
£
If you wish the estimate to include for any demolition or work of alteration of existing structure, please enter an appropriate allowance here. Without detailed knowledge of the proposal and existing building this system is unable to assess the estimated cost of demolition and alteration works.

Frame

Substructure

Roof

Upper Floors

External Walls

 

Internal Walls

 

Windows

Select material used for majority of windows

External Doors

Select material used for majority of door leaves

Internal Doors

Wall

 

Floor

 

Ceiling

 
%
%

Please select approximate percentages of total site area not occupied by buildings below

Please enter any allowances you wish to include below:

£
£
£
£
£
£
£
£
£

Building Drainage

Site Drainage

%
e-Griffin suggests 5% for new build and 10% for refurbishment
%
Costs usually fall in the range between 10% and 25% depending on project size
£
%
Enter Required Percentage for Overheads and Profit (usually not exceeding 15%)
£
£
Enter Any Required Amount for Items of Minor Building Work Not Included Above
£
Enter any allowance required for furniture and equipment to be provided by person(s) other than the builder

CONSTRUCTION COST CALCULATOR

For those projects which are still in the early stages we offer a free online Construction Cost Calculator which provides a Professional Preliminary Estimate, which can be used to match your design and specifications to your budget or it can be used to provide a quick less accurate Ball Park Estimation.