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Cost to demo house on a lot in EBR

Posted on 5/26/19 at 11:18 pm
Posted by Bamboozles
BR
Member since Jul 2008
2302 posts
Posted on 5/26/19 at 11:18 pm
What is reasonable cost for demoing a house in EBR so you can build a new one on same lot. Current assumption is to keep as much of the foundation as possible since newer house will be bigger than the current one. Range I have gotten from contractors is such that the highest bidder is a bit more than twice the lowest so am curious.

Thanks
This post was edited on 5/26/19 at 11:20 pm
Posted by cave canem
pullarius dominus
Member since Oct 2012
12186 posts
Posted on 5/26/19 at 11:36 pm to
quote:

What is reasonable cost for demoing a house in EBR so you can build a new one on same lot. Current assumption is to keep as much of the foundation as possible since newer house will be bigger than the current one. Range I have gotten from contractors is such that the highest bidder is a bit more than twice the lowest so am curious.

Thanks




Somewhere between one and one million dollars, no one would be able to give you any type of answer with the info you provided.

Also I very highly doubt any builder worth a shite will be agreeing to your foundation plan which I am assuming you mean a slab, all houses have a foundation of some sort.
Posted by Bamboozles
BR
Member since Jul 2008
2302 posts
Posted on 5/26/19 at 11:46 pm to
Range I have gotten is 9K to 20K. Yes I meant the slab not foundation. Currently only demoing it, hiring a builder and agreeing to a layout is down the pipeline. New layout will be bigger than existing slab
Posted by Triggerr
Member since Jul 2013
1890 posts
Posted on 5/27/19 at 12:56 am to
So removal of the concrete slab including footings. Your post is a little unclear and really need to know the approx size of the existing house and what type of construction/ exterior finish it is. A stick frame/ siding/ shingle roof house is cheaper than a stick frame/ brick/ asbestos shingle roof and other scenarios. To give you an idea 2,500 sf house stick frame, some type siding exterior with removal of slab I would charge some one approx $15,000 turn key to dirt left clean
Posted by ashy larry
Marcy Projects
Member since Mar 2010
5568 posts
Posted on 5/27/19 at 8:36 am to
If you are going through the expense of doing all that, remove the old slab and footings. There are very few scenarios where it would be worth keeping it. Load bearing walls need to be on top of the existing footings and it will limit the design of the new house. Not to mention the plumbing fixtures either need to go back in the same location or you’ll lose money trying to relocate them. One of the nice things about building a new house is being able to design what you want and not worrying about old issues like plumbing, etc.

$9k seems a little on the low side to me unless it’s a small place. Make sure you are comparing apples to apples on the quotes. Demo guys need to cap existing water supply, not just turn off the meter and leave your supply buried somewhere on the lot. Sewer tie in needs to be capped and marked on the property. Are they both quoting removal of the driveway and/or broken sidewalk?
This post was edited on 5/27/19 at 8:39 am
Posted by hungryone
river parishes
Member since Sep 2010
11987 posts
Posted on 5/27/19 at 8:46 am to
Absolutely remove the old slab and count on pouring a new one. You DEFINITELY don’t want a seam anywhere in your house slab (you say old slab is going to be smaller than new house). This is the epitome of penny wise and pound foolish. That slab seam will *always* allow water intrusion along its joint with the new section....it’s just a matter of time before you have some high water table event (week of rain, minor flood, broken pipe in yard, etc) and you will have moisture betweeen those two sections. Ask anyone who’s ever lived in an old slab house w/an addition—it can be a perpetual nightmare.

Also, why in the hell would you try to save costs on the dang foundation? Either build a smaller house, save money on fixtures and fittings, or wait a bit and save more cash. DO NOT skimp on the foundation. Assuming you get a 20 or 30 year mortgage, that will give you a loooonng time to regret being cheap on such an essential system of the house.
Posted by cave canem
pullarius dominus
Member since Oct 2012
12186 posts
Posted on 5/27/19 at 11:15 am to
quote:

Absolutely remove the old slab and count on pouring a new one. You DEFINITELY don’t want a seam anywhere in your house slab (you say old slab is going to be smaller than new house). This is the epitome of penny wise and pound foolish. That slab seam will *always* allow water intrusion along its joint with the new section....it’s just a matter of time before you have some high water table event (week of rain, minor flood, broken pipe in yard, etc) and you will have moisture betweeen those two sections. Ask anyone who’s ever lived in an old slab house w/an addition—it can be a perpetual nightmare.

Also, why in the hell would you try to save costs on the dang foundation? Either build a smaller house, save money on fixtures and fittings, or wait a bit and save more cash. DO NOT skimp on the foundation. Assuming you get a 20 or 30 year mortgage, that will give you a loooonng time to regret being cheap on such an essential system of the house.


All that is true but you are missing the biggest problem in keeping the slab.

ALL slabs settle, making a uniform compacted pad is an attempt to slow it down and make it settle as level as possible. If you try and place load bearing walls along this seam they are going to crack as these two concrete slabs settle at different rates, the old one slowly and the new slab much more quickly in normal circumstances.

there are ways to avoid this but they cost more than simply pouring a new slab.

No reputable builder is going to touch this
Posted by keakar
Member since Jan 2017
29886 posts
Posted on 5/27/19 at 1:31 pm to
rent backhoe from hardware store rental place, get large capacity dumpster and have at it. you will need more then one dumpster so have them aware you want a fast swap out when you call so you can keep working. you can have it down to a flat empty slab in 1 weekend and total cost to you is under $1000. then hire someone to jack hammer up and remove the slab.

as for saving slab, DONT DO IT, this will cause you nothing but problems.

the old slab will force you to keep the old floor plan and its going to be a bitch to tie in water and waste lines for the new spaces as you cut into the old slab and weaken it to do it. not to mention it may be cracked, crack during demo, or will crack sooner or later after you finish the renovation when the new house settles.

unless you are just talking about a 10ft addition on the back of the house, just start with a brand new slab and create the floor plan you want from scratch. the money you save vs the huge risk and money it costs you later if you have issues isnt worth it.
This post was edited on 5/27/19 at 2:21 pm
Posted by gumbo2176
Member since May 2018
15016 posts
Posted on 5/27/19 at 1:39 pm to
I totally agree with all the replies saying tear up the slab. That will be nothing but trouble down the road.
Posted by ItNeverRains
37069
Member since Oct 2007
25397 posts
Posted on 5/27/19 at 3:59 pm to
quote:

Absolutely remove the old slab and count on pouring a new one


God this please don’t be a dumbass
Posted by Bamboozles
BR
Member since Jul 2008
2302 posts
Posted on 5/27/19 at 8:23 pm to
quote:

Are they both quoting removal of the driveway and/or broken sidewalk?


Driveway being kept for now. 9K quote includes removal of slab. House is roughly 1600 sq ft. but have couple sheds, chain link fence etc to remove. Utilities etc will be capped off.
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