The Best Way to Calculate The Cost of Building Your Home Extension


If you are considering expanding your residence, it’s very important to work out the price of the house expansion before you start the job. So this guide will discuss benefits of building your own house extension then provide an indicative cost amounts for operates in South East of England at 2011.

1. Added benefits of building a house extension

In the recent UK economic climate more people are opting to construct an extension in place of proceed, since they is a cost effective way of adding value for a property. Based upon the magnitude of the expansion you intend to construct, it may add approximately 25% on the value of this home and cellar or loft conversion will typically increase the property worth by 10 percent to 15% Loft Conversion London.

2. Calculating the Price

Offering price quote to get an’average’ dwelling extension may be tricky – considering that there is really no ordinary! Issues such as earth states, access to the website, proximity and location of providers certainly are a huge component at the build budget. Our biased prices are given assuming that each of these dilemmas are acceptable to handle. The cost of building a house extension greatly is based upon its size and fashion. As a rough guide, one storey (20 metre sq) expansion prices 22,340GBP or 1,117GBP each metre sq; two storey (40 metre sq) extension costs 46,080GBP or 1,152GBP each metre sq; a (3 2 metre sq) attic transformation fees 25,536GBP or 798GBP per sq metre; and also a (32 metre sq) basement conversion charges 27,168GBP or 849GBP per sq metre.

3. Obtaining a quote in the builder

These statistics will undoubtedly be more variable and also depend upon the choices of their homeowner. For example, stone floors will get a greater cost implication than more economical wood options. A more in-depth estimation for the expansion may be obtained at the planning phase of one’s undertaking. A builder is then going to be able to give an equal quote for your own work.

4. Contingency fund

Obviously, you can’t foresee unforeseen problems nevertheless, you also may prepare to them. You always need to reserve a contingency fund to deal with added prices that may, and often do, occur.


Assessing your home is a excellent cost efficacious means to grow the value of your home along with together with the ideal design it will be a source of joy and gratification for many years ahead.