|
Estimating a Build Cost
How much to Build a House?
It's a good idea when you have a plot of land and a set of plans to look at what costings you are likely to incur in your Build, a simple idea is to break down the the build into various stages or catagories such as below.
|
Quotes and Tenders
Each chunk or stage of a build can be costed by sending out plans and relevant information (Tender Packs) to contractors and builders to quote or tender for the work to be done, it is a good idea to get at least 3 quotes or tenders for each stage, it's worth mentioning that it's not always the cheapest quote that should get the job, a selection process should be used to pick the contractor that can fit to your time table and include all aspects of work you have set out in the Tender pack. A simple contract can be made between the 2 parties (you and theContractor) and an agreed payment schedule based on completed work.
Click on Free Download Links Below
|
Electrical & Mechanical, Commonly know as M&E
Do you need an M&E Contractor?
It Depends on the size of your development, for a House with a Total floor area in excess of 2000 square feet I feel You should be looking at M&E in a slightly different way to a smaller development.
Recomended Books below
|
|
|
For Example (M&E) A smaller development may adequately use for Ventilation local extraction fans in rooms extracting air through an external wall
A Larger Development may require low noise Ventilation to all rooms with discreet hidden Ducting with heat recover incorporated to contribute towards Building Energy Management.
Heating design will be different systems for small and large developments, Hot and cold water supply "runs" around the house will increase in complexity as a project size gets bigger (more floor space to heat and longer runs from Boilers to taps).
Larger Projects tend to have extra storage tanks, pumps, larger capacity pipes, buffer tanks and more in terms of Electronic Home Control systems as seen in:-
Click on the Free links:
for a more detailed Excel speadsheet free Download,
Need info on:-
Home Automation
|
|
In the Example below we have indicated the kind of amounts you would possibly spend for each stage on an average sized 4 bed detached house, we must point out this is only an example and is now 3/4 years old, however it is not far from being a reasonable benchmark to use as a starting point to estimate your build (these figures are based on a recent House build QS I recently prepaired for a client) for example:-
|
|
Estimated House Build Cost
|
|
|
|
|
|
|
|
|
|
|
|
COSTS Plot 3
|
Month 1
|
Month 2
|
Month 3
|
Month 4
|
Month 5
|
TOTAL
|
Remaining
|
COSTS
|
|
Site/Property purchase
|
|
|
|
|
|
0.00
|
0.00
|
Site/Property purchase
|
|
Demolition /site clearance
|
1,000.00
|
|
|
|
|
1,000.00
|
1,000.00
|
Demolition /site clearance
|
|
Foundations / slabs
|
6,000.00
|
|
|
|
|
6,000.00
|
6,000.00
|
Foundations / slabs
|
|
Plot3 Reinforcement
|
3,500.00
|
|
|
|
|
3,500.00
|
3,500.00
|
Plot3 Reinforcement
|
|
Ground floor joists
|
2,000.00
|
|
|
|
|
2,000.00
|
2,000.00
|
Ground floor joists
|
|
Roads + Sewers
|
|
|
|
|
|
0.00
|
0.00
|
Roads + Sewers
|
|
Brickwork
|
|
24,000.00
|
|
|
|
24,000.00
|
24,000.00
|
Brickwork
|
|
Roof
|
|
8,800.00
|
|
|
|
8,800.00
|
8,800.00
|
Roof
|
|
First Fix Electrics
|
|
1,000.00
|
|
|
|
1,000.00
|
1,000.00
|
First Fix Electrics
|
|
First Fix Plumbing
|
|
2,000.00
|
|
|
|
2,000.00
|
2,000.00
|
First Fix Plumbing
|
|
First Fix Joinery
|
|
4,800.00
|
|
|
|
4,800.00
|
4,800.00
|
First Fix Joinery
|
|
Glazing
|
|
|
4,868.00
|
|
|
4,868.00
|
4,868.00
|
Glazing
|
|
Plastering
|
|
|
4,000.00
|
|
|
4,000.00
|
4,000.00
|
Plastering
|
|
Second Fix Electrics
|
|
|
2,400.00
|
|
|
2,400.00
|
2,400.00
|
Second Fix Electrics
|
|
Second Fix Plumbing
|
|
|
3,600.00
|
|
|
3,600.00
|
3,600.00
|
Second Fix Plumbing
|
|
Second Fix Joinery
|
|
|
6,400.00
|
|
|
6,400.00
|
6,400.00
|
Second Fix Joinery
|
|
Kitchens
|
|
|
|
5,200.00
|
|
5,200.00
|
5,200.00
|
Kitchens
|
|
Bathrooms
|
|
|
|
2,000.00
|
|
2,000.00
|
2,000.00
|
Bathrooms
|
|
Electricity Connection
|
|
|
450.00
|
|
|
450.00
|
450.00
|
Electricity Connection
|
|
Water Connection
|
|
|
|
|
|
0.00
|
0.00
|
Water Connection
|
|
Gas Connection
|
|
|
450.00
|
|
|
450.00
|
450.00
|
Gas Connection
|
|
Finals [painting + finish]
|
|
|
|
|
3,200.00
|
3,200.00
|
3,200.00
|
Finals [painting + finish]
|
|
Landscaping/Walling
|
|
|
|
|
2,000.00
|
2,000.00
|
2,000.00
|
Landscaping/Walling
|
|
Appliances
|
|
|
|
|
400.00
|
400.00
|
400.00
|
Appliances
|
|
Contingencies
|
2,500.00
|
|
|
|
|
2,500.00
|
2,500.00
|
Contingencies
|
|
TOTAL COSTS
|
15,000.00
|
40,600.00
|
22,168.00
|
7,200.00
|
5,600.00
|
90,568.00
|
90,568.00
|
TOTAL COSTS
|
|
�
|
�
|
�
|
�
|
�
|
�
|
0.00
|
�
|
�
|
|
FEES
|
Month 1
|
Month 2
|
Month 3
|
Month 4
|
Month 5
|
|
Remaining
|
FEES
|
|
Stamp Duty
|
|
|
|
|
|
0.00
|
0.00
|
Stamp Duty
|
|
Valuation
|
|
|
|
|
|
0.00
|
0.00
|
Valuation
|
|
Quantity Surveyor
|
|
|
|
|
|
0.00
|
0.00
|
Quantity Surveyor
|
|
Ground Investigation
|
|
|
|
|
|
0.00
|
0.00
|
Ground Investigation
|
|
Section 106
|
|
|
|
|
|
0.00
|
0.00
|
Section 106
|
|
Planning
|
|
|
|
|
|
0.00
|
0.00
|
Planning
|
|
Legals - Purchase
|
|
|
|
|
|
0.00
|
0.00
|
Legals - Purchase
|
|
Architect
|
|
1,350.00
|
|
|
|
1,350.00
|
1,350.00
|
Architect
|
|
Insurance
|
180.00
|
180.00
|
180.00
|
180.00
|
180.00
|
900.00
|
900.00
|
Insurance
|
|
NHBC/Zurich
|
|
|
1,100.00
|
|
|
1,100.00
|
1,100.00
|
NHBC/Zurich
|
|
Engineers
|
|
|
|
|
|
0.00
|
0.00
|
Engineers
|
|
CDM
|
|
|
|
|
|
0.00
|
0.00
|
CDM
|
|
Project Management
|
1,000.00
|
1,000.00
|
1,000.00
|
1,000.00
|
1,000.00
|
5,000.00
|
5,000.00
|
Project Management
|
|
TOTAL FEES
|
1,180.00
|
2,530.00
|
2,280.00
|
1,180.00
|
1,180.00
|
8,350.00
|
8,350.00
|
TOTAL COSTS
|
|
�
|
�
|
�
|
�
|
�
|
�
|
0.00
|
|
�
|
|
Total Month Expenditure
|
16,180.00
|
43,130.00
|
24,448.00
|
8,380.00
|
6,780.00
|
98,918.00
|
98,918.00
|
Total Month Expenditure
|
|
�
|
=
|
�
|
�
|
�
|
�
|
�
|
|
�
|
|
Cummulative Expenditure
|
16,180.00
|
59,310.00
|
83,758.00
|
92,138.00
|
98,918.00
|
�
|
�
|
Cummulative Expenditure
|
|
Download NOW FREE Examples Below
|
|
|
You will need to research material prices and obtain 2 or 3 quotes or Tenders for each of the stages or categories to be able to Assign realistic (fixed) amounts to cover the materials and Labour for each stage, use a spreadsheet if you can, then add up the total, the contingency should be around 10% of your total to cover any unseen or unplanned events or cost's.
|
The list above is also the order in which work is usually done and is a familiar labeled format throughout the building industry that trades understand and work too, for a more detailed list or "Programme of Work" follow the link below where you can download a spreadsheet with a further example of what work needs to be done and when.
Also see
House Building Program of Works
Where to Start
You may find these following links of Interest:
http://www.visualbuilding.co.uk
http://www.selfbuild.com/
If you would like further explanations of the above examples please contact us with no obligation See how we can Estimate your building work with a difference, visit-
Site & Project Management or
Contact Us : 07799203081
|
|
|