Permitted build extensions have become popular for good reason.

Permitted builds fall under the criteria for the need of planning permission and the size of the build permitted is determined by your property i.e detached, semi or terrace but also they can usually be made slightly larger with permission of your neighbours.

As it is a permitted build it saves the cost of planning applications and architect drawings also there's no back and forth scenarios between planning and your architect if planning want changes which could add more cost before a shovel hits the ground, you are welcome to have drawings done for a permitted  build extension but they are not necessary as long as you hire an experienced builder, for a straight forward extension we at TMR only need to know where everything is going and size of doors and windows etc but we will inform you if what you are asking for will not be accepted by a building control inspector.

At TMR we always involve your local Building control department with habitable buildings for the following reasons.

It puts to bed any doubts a customer may have over the build being to current regulations, also when you have an extension built it is normally not only for extra space but to add value to your property and without the correct certification from building control it usually will not, if you come to sell your house as an extended property an estate agent will ask for the documentation for the build and without it they can not sell it as an extended property, at best it would likely be classed as an outbuilding or lean to.

N.B for outbuildings e.g office/workspace, gym, art studio etc you don't need anything as long its not being used as an habitable building and not more than a certain percentage of your land- you just need a reputable builder.

We hope this information has been useful, if you have more questions please contact TMR.