Flat Roof Extension With Lantern Cost

Flat roof extension cost.

Flat roof extension with lantern cost.

In london and the south east the average cost per m2 is around 1 500 2 000. You will also need to factor in location as this can also effect the price you pay to get the job done. We are planning a single storey extension to the rear of our property 3 5 metres x 11 metres. According to an article in the daily telegraph flat roof extensions with roof gardens can add anywhere between 10 and 15 to the value of a home a smart investment to make should you ever decide to sell up.

The roof lantern is a hybrid roof solution. Whereas glass only designs are difficult and expensive to implement since the introduction of tighter building regulations roof lanterns look fantastic and provide plenty of daylight while still offering good levels of thermal efficiency. Naturally the construction of a roof lantern relies on using glazing bars as a support structure for the glass these are visible from underneath unlike a flat rooflight. The project features bifold doors and a roof lantern and could be the perfect choice for creating an open plan kitchen diner or a similar zone.

Another appeal of flat roof extensions lay in their cost. So you need to look for a roof lantern with minimal glazing bar connectors such as the slimline tm roof lantern will help to minimise the impact on the look and the amount of light that will flow through. This is because a flat roof requires less structural engineering and can utilize less expensive materials than the pitched variety. The average cost per m2 for an extension outside of london is between 1 200 1 500.

Using the build it estimating service we ve priced this 20m2 single storey rear extension at 34 662 including labour plant materials and vat. Think flat roof but with a supporting up stand or kerb and then glass box construction on top. For two storey extensions add 50 to the cost of a single storey extension. A large roof lantern including labour can range between 3000 to 4500.

Roof lanterns are the perfect way to add a feature to your flat roof letting maximum levels of natural light in whilst providing a unique feature and views of the sky above which is particularly impressive on a clear night. Opinion is divided about whether we should go with a flat roof with a large roof lantern ie an orangery or a pitched tiled roof with velux windows. Single storey extension cost guide. Flat roof extension cost you will likely have a budget for the project and in this case learning that a flat roof generally costs less than a pitched roof will be good news.