Legal & Finance Design & Planning Schedule & Cost Health & Safety Renewable Energy Water Supply Heating & Insulation
Home Waste Management Problems & Solutions Tools & Machinery Contact Us Advertise
Building Stages Building  Materials Household Appliances Landscape & Gardening Information Video's

Irish Association Of Self Builders                                         The Representative Body for Self Builders of Ireland

Copyright © 2003 - 2017 Irish Association of Self Builders

Share on Facebook Share on Twitter Share via e-mail Print Share on Google Bookmarks

Cost Of Construction

So, how much is building a house going to cost? we need to make sure that before we leap into the construction of our home we have some sort of idea about how much each stage will cost to complete.

The following is only a guide to help you work out an approximate cost of your project and do remember that every project is different in the type of construction, route of construction, the material used and the quality required.

The figures below show the approximate percentage of the total cost of a new home through each stage of the build. This is based on an average detached home on two floors.

What are the approximate ratio costs of each stage?

For the purpose of this exercise we will concentrate on a concrete home and direct route.

Do remember the above calculations are only approximate and every project would have its own procedures.

For example, some builders would do the floor in two sections a sub floor and then the top layer and so on.

The above is only a guide to give you some idea’s in the cost involved. You should always add 20% extra for other and unexpected items.

In order to get an accurate cost of your project, you can use a quantity surveyor to do a cost plan for you.

Next Sections:      Foundation     Walls      Roof      Doors & Windows

** Please Note: From 1st of March 2014, following the new Building Control (Amendment) Regulation S.I.9 of 2014, there is an additional cost on the professional fees as you will require an Assign Certifier to sign for each stage of the build and the Completion Certificate.

Site Clearance

3 %


9 %

External Walls

17 %


9 %

Windows and External Doors

7 %

Upper Floor

2 %


1 %

Internal Walls

2.5 %

Internal Doors

2.5 %

Floor Finishes

4 %

Wall Finishes

5 %

Ceiling Finishes

2 %


6 %

Electrical Installation

4 %

Water Installation (Cold/Warm)

2 %

Waste & Sanitary

7 %


5 %

Built In Cupboards

1 %

Professional Fees

11%  **

Schedules Fee's Site Clearance Foundation Walls Roof Doors & Windows Plumbing

Self Build Insurance

Full Employers
Public Liability and All Risks cover for New Builds,
Extensions and Renovations
Cover can be taken at
any stage of the project
Very competitive premiums.

Phone 01 897 01 05

Fingal Insurance Group DAC is Regulated by The
Central Bank of Ireland

Self Build Direct is the leading insurance policy offering protection to individuals building or extending their homes.
Our cover leads the market and has been developed after assisting 1,000's of self builders over the last 20 years.

Arachas Corporate Brokers Limited trading as Arachas is regulated by the Central Bank of Ireland

Quote Me