Rear Mansard Roof Extension

Mansard roofs are a widespread and traditional method of adding an extra storey to the top of a georgian victorian or edwardian building.

Rear mansard roof extension.

Architects overcome opposition to add mansard roof extension to london mews house after a particularly contentious and protracted planning process this semi detached red bricked house part of a group of five properties that form regent s mews in affluent london nw8 finally boasts an impressive third storey extension as a result of the erection of a mansard roof. Mansard roof extensions are the most cost effective way to maximise the floor area of your house or flat when compared to adding the same floor area with a rear or side extension. A planning appeal for a mansard roof extension has been allowed and planning permission granted for a house in hackney wick east london e9. Mansard roofs are most common on terraced victorian and georgian properties particularly in london.

Often found at the rear of properties this type of conversion changes the sloping side of your roof to an almost vertical side one of at least 72 degrees. Named after the 17 th century french architect francois mansart mansard loft conversions can be thought of as an extension across the entire plane of your property s roof. What is a mansard roof extension. Mansard loft conversions follow this style with one side of the roof removed and the height of the party wall raised to create an almost vertical slope at least 72 degrees in order to create more space.

This is known as a mansard roof extension. To make a loft extension workable in this instance it will be necessary to remove the existing roof build up the existing party walls and build a new structure set back from the front wall with the front and rear walls sloping inwards. Often the existing roof will be inverted so the roof is a valley v.