Tue, 19 Dec 2023 08:30:54 +0000 http://www.greenbuildingforum.co.uk/newforum/ Lussumo Vanilla 1.0.3 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17869&Focus=301972#Comment_301972 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17869&Focus=301972#Comment_301972 Mon, 12 Jun 2023 21:58:16 +0100 Victorianeco
In order for the property to work for us as a family we would either need to go into the attic and add 2 bedrooms upstairs, possibly turning into a gable roof and adding dormers or we add a side extension...

What sort of method would be cheaper/better in the long run?

The dormer conversion would potentially give us decent sea views also

The bungalow itself is on a footprint of12m x 12m, the existing ridge line is only 2.5m central to the property. The length of each hip is about 7.8m

Does anyone know what the usable roof area space would be using a quick calculation?]]> http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17869&Focus=301978#Comment_301978 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17869&Focus=301978#Comment_301978 Tue, 13 Jun 2023 10:45:51 +0100 Dominic Cooney http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17869&Focus=301979#Comment_301979 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17869&Focus=301979#Comment_301979 Tue, 13 Jun 2023 10:48:21 +0100 Dominic Cooney http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17869&Focus=301980#Comment_301980 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17869&Focus=301980#Comment_301980 Tue, 13 Jun 2023 10:50:29 +0100 Dominic Cooney http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17869&Focus=301981#Comment_301981 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17869&Focus=301981#Comment_301981 Tue, 13 Jun 2023 10:57:14 +0100 Dominic Cooney
see attached working out, obviously these are just lines so you need to allow for the thickness of the structure.
Starting with a 12 x 12 box on the left for the roof plan.]]> http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17869&Focus=301984#Comment_301984 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17869&Focus=301984#Comment_301984 Tue, 13 Jun 2023 11:25:26 +0100 Dominic Cooney I took off 300mm for the structure and allowed an extra 300mm for the PD regs

"(bb) the edge of the enlargement closest to the eaves of the original roof is, so far as
practicable, not less than 0.2 metres from the eaves, measured along the roof
slope from the outside edge of the eaves;"]]> http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17869&Focus=301985#Comment_301985 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17869&Focus=301985#Comment_301985 Tue, 13 Jun 2023 11:29:07 +0100 Dominic Cooney
Class AA - enlargement of a dwellinghouse by construction of additional storeys
Permitted development
AA. The enlargement of a dwellinghouse consisting of the construction of—
(a) up to two additional storeys, where the existing dwellinghouse consists of two or more
storeys; or
(b) one additional storey, where the existing dwellinghouse consists of one storey,
immediately above the topmost storey of the dwellinghouse, together with any engineering
operations reasonably necessary for the purpose of that construction.

Development not permitted
AA.1. Development is not permitted by Class AA if—
(c) the dwellinghouse was constructed before 1st July 1948 or after 28th October 2018;


there may be other restrictions that apply, also you need Prior Approval from the Council, so plenty of reasons to say no.]]> http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17869&Focus=301995#Comment_301995 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17869&Focus=301995#Comment_301995 Tue, 13 Jun 2023 13:44:28 +0100 Peter_in_Hungary
It is unlikely that the ceiling joists will be sufficient for a floor so this adds expense and also raises the FFL. Proper insulation will either go on the outside of the rafters, this requires the roof stripping and raises the roof line which may impact planning or if done inside it lowers the eaves ceiling which reduces the usable area.

By the time you have put in new floor joists and insulated from the inside you can loose a surprising amount of useable space. Also consider the staircase, - this will cost about 4M2 of ground floor area which has to be considered. (Spiral stairs in my experience don't save M2 but might fit where others don't but IMO they are a pain).

if the ceiling timbers are structural (i.e. needed to stop the rafters spreading the walls) then they can be no higher than 1/3 down the rafter length. But you will probably need a SE to sign off anyway so they will confirm dimensions - meanwhile this will give you an idea about what you can get.]]> http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17869&Focus=302008#Comment_302008 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17869&Focus=302008#Comment_302008 Wed, 14 Jun 2023 19:55:59 +0100 cjard http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17869&Focus=302023#Comment_302023 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17869&Focus=302023#Comment_302023 Sat, 17 Jun 2023 20:56:23 +0100 Victorianeco
The trusses appear to be stubbed eaves

We have put an offer in so if it goes ahead week 3 be back with queries

Thanks all]]>