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Architectural Services Questions

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215 Architectural Services questions

How do I know if my ceiling /roof is 60 minute fire proof?

Hi there,

To fulfill council requirements I need to know whether the ceiling/floor between an upstairs flat and a downstairs flat is 60 minute burn time compliant. Could anyone let me know how to figure this out? I will also need to expose the structure so that a council surveyor can see. Is this something that a builder can do? The house is an existing old end of terrace and has been converted into two flats.



Major house alteration

I would like to change our semi from 525 sq ft to approx 900 sq ft by adding extensions to the rear (3m or more) and side but I would also like to change the shapes and sizes of the rooms too, basically re-designing the whole layout. This would involve moving supporting walls (they all seem to be supporting) and knocking down a central chimney breast which may support the loft conversion floor). Could anyone tell me is this even possible? Would it just be too costly to be worth it? We have a very large back garden but limited space at the side ( 7 ft increasing to 11 ft). Thank you

Structural calcs for RSJ - Trade advice

Dear all, we have employed structural engineer to do the calcs for the steel lintel to be inserted into boundary wall of our bungalow. We would like to have bi-folding doors installed. The span is 4100mm. What is really confusing me is the fact, that he suggested what RSJ we need for this, but he is also suggesting to use 150x200mm bearing beam and plate one side and 250x200 bearing beam and plate the other side. Is this normal? I thought that the RSJ is normally supported from the brickwork. Thanks for your help

Cavity wall insulation

When building a masonry wall with an insulated cavity, is the cavity meant to be fully filled with insulation or is it meant to be partially filled with an air gap.

My builder has fully filled a 75mm masonry wall cavity with rolled insulation, same kind you put down in loft floors. A friend told me that there's meant to be an air gap to prevent water transfer between layers.

Please advise

Many thanks

drawings and planning

i have seen some land with planning approved for a dwelling that i want to buy. if i meet the criteria approved in the plans what is the likelyhood of it being fully approved? is it like a small percentage that get accepted if there is outline planning approved? really cant afford to end up with something useless! and before i buy the land, if i get the drawings made, how can i submit them for approval before i buy it? really considering buying something "made" already.. *sigh* ...really confused by it all.

thanks in advance to anyone crazy enough to give me some sort of answer :D


EDIT: 23rd december
i decided against the land as the solitary tree has grown since the outline planning and cannot be moved or anything built near it... the plot is now too small.

thanks for all the answers. :D

I want to extend over 3 meter's deep and have semi detached house

On the left side the neighbour has a 3 meter extension already so from his mid point at a 45 degree angle I could go to 3.8/4 meters without blocking his view. On the other side the neighbour has confirmed to me he would not object as he wants the same, I understand only 3 mteres falls within permitted development what are the chances of me getting 3.8/4 given the new relaxed laws

Also if the neighbours don't object could they still refuse?

do I do a 45 degree angle from their extension or original window?

This extension is within 2 metres of the boundary and size will be 6.5 metres wide 4 meters deep

Can I convert a large 4 bedroom flat into two separate units?


I'd like to know if anyone has had any experience with converting flats within purpose built blocks to create additional units? Will the council even entertain this idea? As well as the freeholder (the property is a large 4 bedroom flat within a lambeth housing bock ) and the idea is to convert it into 2 bedroom flats. Any advice would be greatly appreciated!.

Kind Regards,

Single storey extension which is next to a tree with tpo

I am planning a single storey extension but have a tree in my back garden which has a tpo, will building regs still be suffice or do i need to go down the road of planning permission because of the tpo

Legal height for fence front garden

Hi, I share a part wall with my neighbour and today out of the blue there is a fence erected on top of the wall which measures approx 1.95m from my side and from his side is 2.17m. Road is on a bit of a slope and all the garden on the street are fairly open with some that have hedges but they are quite short like 1m. And this fence just looks odd, blocks out the sunlight to my front garden and as the road is one way I can't see on coming traffic anymore when I reverse the car as the fence is totally blocky my view. I tried to talk to my neighbour but he just shrugged me off. What should I do?

Any advice is appreciated.

Update from Blackburn council -

Further to your email regarding the dividing fence at Longshaw Lane. I have visited the property this morning. In your e-mail you raise concerns regarding the height of the fence and the loss of light the fence creates. Under the Town and Country (General Permitted Development)(England) Order 2015 Part 2 Class A, the provisions state that a gate/fence/wall or means of enclosure would not require planning permission if the height does not exceed 2meter from ground level. I have taken a measurement at the site and found that the height from ground level taken from your side of the property is well within this limitation as your ground level far exceeds that of your neighbour. The height at your neighbours side does exceed 2 metres but only by a minimal amount. In light of the extent of the breach and the impact this breach is having on both properties we will not be taking enforcement action in respect of this .

Work carried out to a party wall may be subject to the Party Wall Act, however this is not a matter for the Planning Section, any provisions of the Party Wall Act that may have been breached and are relevant to you and your neighbour maybe be a civil matter that you feel you may want to pursue.

If you wish to discuss this further please call me on the direct land line below.

Kind regards

I am furious to say the least. Seems like they can't be bothered.

How long does it take to draw architectural plans?

After the initial consultation, how long should it take an architect to draw up plans for a simple kitchen extension 4 x 2 metres?

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