Altering roof pitch angle for loft space

[r44flyer]

Hello all...

I'm spit-balling a bit for roof options for a loft conversion. We cannot do a hip-to-gable conversion as it won't get planning, nor can we do it under permitted development as it would be outside of the original footprint of the external walls.

In order to gain even a little more head height under the sloping section, in what will be a shower room (righthand loft window), what's the score with extending the ridge a little and increasing the pitch of the hipped roof by perhaps a few degrees? Other than being careful not to make it look stupid, will planning likely have a problem with this? Is there such a thing as an accepted range of roof angles?

Approved plans say nothing of specific angles, only that we must maintain a hipped roof. The roof is being completely renewed either way. Standard plain concrete tiles.

Interested in any well informed thoughts, thank you.

[mikebradford]

Why don't you propose a hip to gable flush with the original gable, this would usually be permitted development. Then have your hip roof lean against it.

[blueg33]

Planning are usually pretty sensitive to roof pitch, especially where it raises the visible ridge line or the difference is visible when compared with neighbours.

Do it without planning and you may get enforcement, and will have issues when you come to sell. Buyers lawyers are scrutinising planning and changes much more closely than they ever did.

[r44flyer]

Our architect proposed the below. Larger dormer, basically as Mike scribbled above. Done with permitted development.



The problem is, the window with the '8' on it, is infill extension, being done at the same time, and our architect suggested 'merging' the larger, PD dormer (as standalone PD without the infill extension) with the approved plans in the first image, so we get larger dormer and infill extension, and hipped roof leaning on the dormer.

Builder has raised concerns (not started yet), and now I think I've been lead up the garden path with this 'merging' idea and we're up the proverbial creek having wasted time and money on drawings etc.

Any further help from you in particular, Nick, would be most welcome.

[wolfracesonic]

Would a gablet/Dutch roof help you out?



There is a dormer near me like the one in the last pic that cuts across the hip, looks a bit odd tbh.

[r44flyer]

wolfracesonic said:

Would a gablet/Dutch roof help you out?



There is a dormer near me like the one in the last pic that cuts across the hip, looks a bit odd tbh.

That doesn't keep the fully hipped roof, and is closer to the larger dormer drawing we have. I think we have a planning problem, rather than a technical problem, as I may have been sold some BS.

[RedWhiteMonkey]

r44flyer said:

Dependent on location and visibility it possibly isn't an issue but that will look ugly as sin if built.

[r44flyer]

For clarity, this is what we have now...



This is what planning granted...



This is what architect says we can do by merging PD and granted planning...

[The Three D Mucketeer]

I think if you deviate from the Planning Approved drawings you are likely to create problems for yourself ... I put a brick pillar on the outside of a wall rather than inside and had to resubmit for non conformance to the plans.