How much does an extension cost? We know this is the most important question for many and we always strive to be transparent when it comes to price. When we talk about project feasibility, that includes breaking down the finances involved in renovating a property. Keep reading if you want to find out how much an extensions costs in London and Brighton.

There are various styles of ground floor extension available, and they can differ in cost depending on size and finish. A side return extension is often a great way to use wasted outdoor space to increase the size of your property. For a typical side return extension between 4 to 5m in width, the build cost for a watertight shell with a standard glazing package (bi-fold doors to the rear and Velux windows along the side return), would be about £60-70k plus VAT.

Below you will see an example of a stunning Wandsworth side return extension, which is 4.5-meter in width and 6-meter in length. With velux windows and crittal style doors (a cheaper alternative to genuine crittal) you can read a summary of this project and the associated costs here.

A rear extension to a property typically costs from £55 to 65k + VAT. It is a great option for those looking to add space and allow the addition of skylights and windows that can totally transform a room. This example based in Croydon allowed for the creation of a large open plan kitchen and dining space that will improve both the properties market value and its desirability. You can click here to read more about the value an extension can add to your home!

The cost of a wraparound extension, which combines both mentioned above is very dependent on the scope of the project. The large extension below shows that with both the side return and a 4m rear extension we can create a room size of approximately 10m in length and 5.5m in width. This allows enough room for a WC and utility room, a spacious kitchen with a large kitchen island, a dining area, and living area. A wraparound extension of this size will be around £85-95k + VAT.

On a slightly smaller scale, but still creating a beautiful, spacious room, the property here shows the removal of an existing conservatory and extension to the side and rear. The cost of this extension was £60-70k + VAT.

When budgeting for a build it’s important to be aware that a larger space will see associated costs in the finish, with the cost of flooring something to factor in. If you are looking to save money on an extension you can read our advice on renovating on a budget. We often get enquiries from people looking to add both space and value to a home and are considering extending the ground floor and /or building into the loft space. It’s always a good idea to speak with our team as they can talk you through our design packages and potential savings you can make by working with one designer for both. If you would like to learn more about the cost of a loft conversion head here for more information.

 If you have any questions or want to discuss more about the cost of extending your home you can call us on 02070432378 or email us at hello@hometales.co.uk. You can also book a free consultation to speak with a design and planning expert directly via our online diary here