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Posts: 1224
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BISF House Extensions

BISF houses have traditionally been easy to adapt and modernise and lend themselves well to being extended to increase space and more importantly value. Adding a two storey extension and increasing the number of available bedrooms has the highest impact on value, smaller extensions i.e enclosed porches have the least financial impact but they do improve kerbside appeal.
This gallery shows a wide range of extensions from simple additions to larger, more ambitious projects. The creativity and ingenuity shown here never ceases to impress and we look forward to adding more images as they become available.

If you have or know of a BISF property with an impressive extension then please share it with us in the comments below or e-mail the details to

Posted : 5 April 2014 12:33 PM
Posts: 5

Great extension, exactly what I wanted to plan.
Does someone know where is it ?
Drawings are available ?
Any information please let me know.

Posted : 9 February 2020 3:16 PM
Posts: 1224
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Topic starter

Hi Dbrusty,

extension bisf


I've posted a link to the location below but unfortunately we do not have any other details or plans regarding this very unusual extension.

Link to 6 Southfield Road, Whickham

Posted : 10 February 2020 10:08 PM
Posts: 2

Can anyone tell me the best way to tie a extension into the house? Is it a cause of bolting brackets to existing frame of the house and tie it to that?

Posted : 4 December 2022 3:49 PM