How do I bathroom / kitchen / extension? etc.

;-P

My lounge sticks out the front of my house and was wondering if I could do a steel/timber framed extension (assuming the foundation slab is the same for the whole house which has 2 stories).

Any idea what it would cost me as a shell assuming the foundations are fine and a tiled roof needed?

Personally id get a diesel heater and run it in with kerosene. Far cheap to run and will provide more heat for the money.

Guess 75 to a 100 and I bet your over that.

Obvs im messing, I've got it covered, but hold cow the incompetence of so many people is staggering.

Got my first round plans back from the "architect" (not actual architect) and they were literally the EXACT opposite of what we had asked for (and shown plans for).

May have to bump it a year and get some professionals on the job.

But more info required really?

Whilst I’m not extending I’ve got pretty detailed costings for a variety of works if they’re useful to anyone.

Slightly nervous about openly posting use to recent friction in some of the other threads!

Yeah prob not ok to openly post.

Do you mean bc how others will potentially react or something else?

We need day rates and trade price material

I’m not going down that rabbit hole! I meant more an idea of costs for bits of work - eg the new bathroom or kitchen or windows etc! Not the 500+ line costing document

I’m only kidding.

I think it depends on where you are, we do work for a kitchen fitter and his are 10-20k ish. Bathroom again it depends what you go for but 5 to 10k.

I mean the skys the limit, I’ve just ordered a copper bath and shower tray for a client and it’s eye watering 😂

pretty detailed costings for a variety of works if they’re useful to anyone

would be interested if you're happy to forward anything, got plenty that needs doing at mine

How much info to provide? i don't want exact costings but knowing if I could get the basic structure in and signed off for 30-50-100k?

It's about 3.8x3.6m, foundations are expected to be suitable already.
Ideally steels and timber not brick construction.
would expand the box room and need to tie into the main pitched tiled roof,
2 windows,
No urgency to do the CH or electrics if it keeps the costs down initially as it will open out the existing box room where services can remain.

Any indicative costing you could provide would be really appreciated.

Here you go: https://costmodelling.com/building-costs

So many variables - material choices, site access, roof shape, height, how it joins the existing, services etc etc, but it definitely won’t be £100k (£7000/sqm) and it’s quite unlikely to be £30k (£2000/sqm) these days unless there are lots of things on your side (experience, knowledge, contacts mainly). £50k ought to be more than enough unless it’s super complicated.

Thanks. I'll have a play later.

Just wouldn’t shared detailed costs because no project is the same so would kinda be false info.
Basic totals I don’t think anyone could complain about.
And I’m more thinking of EC than folks here.

Check the permitted development guide .pdf and the LA planning SPG for resi extensions. Extending above a ground floor bay is beyond the principal building line - don’t know off hand but could need planning. And materials will need to match existing for an easy life.

IME you’ll be under a lot less stress if you have more than enough ( double !) in the bank to cover the “what the internet says it might” cost of the project and then specify and tender the project competitively to get value and give you wiggle room etc. Have a professional design it and do a line by line schedule of works to be costed.

Don’t forget VAT 20% obvs and fees 10-15% of construction on top of those indicative pSm rates btw.

Anything above 4m at the roof apex will need planning, so first floor always will. Whether they want materials to match will vary authority to authority, some prefer that they don’t so you can see what’s original and what’s an extension. There should be a published design code.

Sorry - yes + VAT is pretty important!

If you’re not experienced and like to accurately budget then I fully agree - get an architect to design it, get planning, get working drawings done, get a quantity surveyor to count how much of everything you need. Builders can then price accurately and you won’t have the stress of them coming back asking for more £ if they run in to something they didn’t account for.

+1 for not forgetting VAT.
Not a single architect included it in the cost they spoke about when I was having stuff done.

Not a single architect included it in the cost they spoke about when I was having stuff done.

Isn't that more or less illegal when dealing with consumers? It's definitely a breach of advertising rules.

Hard to explain without writing a novel, but they didn't hide it, it was just like...
"I have 75K to spend, that's it, all my money, my entire pot."
"Cool, here's the plans! Comes in at 75k! (+vat)"

Vat bit me on recent building work for the kitchen.

I doubt I can justify it any time soon just want to know whether it's wait 5 years or forget about it.