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#1 | ||
FF.Com.Au Hardcore
Join Date: Feb 2008
Location: Perth, Northern Suburbs
Posts: 4,881
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Ok, bit of a strange one for Ford forums, but I recall we have some stone-masons here...
Looking at a block of land to purchase... The block is 30m deep, and overall drops away from street level. So we'd be looking to retain along the back (11m) and along the sides towards the back. That is now the normal practise here, but this is in an old part of the suburb. Overall I would estimate that the existing block drops 1~1.5m from street to back fence so adding 1m of retaining should be plenty. HOWEVER, the back fence is onto a commercial property (their carpark) which has already been levelled, and so it is already retained. Using that precast modular concrete ("wonderwall"). So my question is how can I "add" to the existing retaining? Can I place "L" blocks on top of the existing retaining? |
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#2 | |||
Cabover nut
Join Date: Aug 2015
Location: Onsite Eastcoast
Posts: 10,827
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Quote:
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heritagestonemason.com/Fordlouisvillerestoration In order that the labour of centuries past may not be in vain during the centuries to come...... D. Diderot 1752
Last edited by roKWiz; 07-05-2023 at 02:52 PM. |
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#3 | ||
\/\/\/\/\/\/\/\/
Join Date: Feb 2006
Posts: 5,690
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I would assume you would need to talk to an engineer. Adding another metre on top of an existing retaining wall would surely need to be engineered correctly for the extra load.
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#4 | ||
DIY Tragic
Join Date: Apr 2018
Location: Sydney, more than not. I hate it.
Posts: 21,792
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Absolutely. I might like to live on the edge (in a manner of speaking) but this situation is one I’d not touch without an engineer on my side.
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#5 | ||
Cabover nut
Join Date: Aug 2015
Location: Onsite Eastcoast
Posts: 10,827
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I don't even think he is requiring a Stonemason.
Blocklayer/brickie and Casey Jones, if he's talking a 2.5mtr high wall.
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heritagestonemason.com/Fordlouisvillerestoration In order that the labour of centuries past may not be in vain during the centuries to come...... D. Diderot 1752
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#6 | ||
FF.Com.Au Hardcore
Join Date: Feb 2005
Posts: 5,041
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The existing wall will have been engineered for the height it is currently at. Adding to it will be a non-starter as far as council is concerned. Simplest solution might be to set back a distance equivalent to the existing wall's height, and build your new wall there.
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#7 | ||
FF.Com.Au Hardcore
Join Date: Jan 2005
Location: Hervey Bay
Posts: 5,205
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The thing I feel everyone has overlooked so far is the existing wall on the shared boundary line so that it can be used?
I doubt it would be on the shared boundary and solely on their property, so there will be zero access to adding to it, modifying or using it. Certainly not without their permission which I can't see they would give... Nor would you want to ask as you'd be responsible for any problems. So you will end up with the kind of ridiculousness that our ****wit neighbour has bought upon us. ![]() ![]() ![]() Everything is done on his side so he can do as he pleases without the need to involve or offer consideration to neighbours. I'd expect this would be the same. |
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#8 | ||
FF.Com.Au Hardcore
Join Date: Feb 2008
Location: Perth, Northern Suburbs
Posts: 4,881
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L-blocks are precast reinforced concrete sections, in the shape of an 'L', where the weight of the soil on the base holds the upright in position.
I want to achieve another ~1m of retaining, in addition to the ~1m already there |
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#9 | |||
Cabover nut
Join Date: Aug 2015
Location: Onsite Eastcoast
Posts: 10,827
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Quote:
(who will usually direct you to one of theirs) If the neighbouring property is already built 1 mtr high how do you plan on finishing their side of your extra 1000mm ad on. It would then need to be freestanding above the 1000mm mark or is there an embankment above whats already done. Other ways beside modular blocks are pre-cast concrete like arm79's pictures below or staggering 500x500x2000 stone logs, both would have to be built in front of whats there now. With engineering approvals, I've built several retaining walls upto 2300mm high using traditional drystone methods. Obviously strength and drainage are the most critical aspects involved.
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heritagestonemason.com/Fordlouisvillerestoration In order that the labour of centuries past may not be in vain during the centuries to come...... D. Diderot 1752
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#10 | |||
FF.Com.Au Hardcore
Join Date: Feb 2008
Location: Perth, Northern Suburbs
Posts: 4,881
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Quote:
that's why I'm trying to get ideas... Currently there is ~1m of the pre-fab concrete stuff, topped by the standard 1.8m colourbond fence. So, from what I can think of, "options" are:
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#11 | |||
Cabover nut
Join Date: Aug 2015
Location: Onsite Eastcoast
Posts: 10,827
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Quote:
Could end up getting very expensive.
__________________
heritagestonemason.com/Fordlouisvillerestoration In order that the labour of centuries past may not be in vain during the centuries to come...... D. Diderot 1752
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#12 | |||
Donating Member
![]() Join Date: Mar 2007
Location: Heading thru Hell (Corner)
Posts: 8,166
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Quote:
As RW says, I don't think any of the remaining options are going to be cheap. Time to get some professional advice (no offence to RW here, just that it's hard to know specifics when you're only going off a forum chat). It might cost you a few $$ to get that advice, but it might save you a lot more $$$ down the track.
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Labels are for jars, not for people. Life is a journey, not a destination. ~~~~~~~~~~~~~~ Daily: 2013 FGII EcoLPi in Winter White Play: 2015 FG X XR8 in Emperor Show' N Shine thread Gone, but not forgotten: 2015 SZII petrol Titanium Territory in Emperor |
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#13 | |||
FF.Com.Au Hardcore
Join Date: Feb 2008
Location: Perth, Northern Suburbs
Posts: 4,881
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Quote:
But how expensive are we talking? It's only 11m. $10k? $20k? |
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#14 | |||
Cabover nut
Join Date: Aug 2015
Location: Onsite Eastcoast
Posts: 10,827
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Quote:
To do it individually........ Sandstone logs (on the Eastcoast) are usually 500 x 500, lengths vary to 2500mm @ around $180 each (for 2000mm ones) + delivery. Depending on reseller. Cheaper in bulk direct from quarry. But in this case the raw material isn't the problem, the cost of bringing in bobcat, excavator, prep work, labour and no doubt the required concrete footing that any engineer would spec. Could easily go $50 000 + in a short time and that's if they don't find any niggle drainage issues. I would seriously talk with people who do this kind of work (engineered approved) in your area and if agreeing to any future work have an itemised quote written up. That's all I can offer from the otherside of Oz.
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heritagestonemason.com/Fordlouisvillerestoration In order that the labour of centuries past may not be in vain during the centuries to come...... D. Diderot 1752
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#15 | |||
FF.Com.Au Hardcore
Join Date: Feb 2005
Posts: 5,041
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Quote:
And you haven't addressed the elephant in the room. What about if the neighbour decides to object to your DA to replace the wall? You'd likely eventually get permission, but is it a headache you want? |
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#17 | |||
FF.Com.Au Hardcore
Join Date: Feb 2008
Location: Perth, Northern Suburbs
Posts: 4,881
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Quote:
Given the lack of a straightforward solution, and the probable cost not just of retaining, but clean fill, we went for a different option. Picked up a beautiful block in Aveley for $260k |
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#18 | ||
FF.Com.Au Hardcore
Join Date: Oct 2010
Location: Perth, WA
Posts: 624
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Welcome to the Valley!
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FGII FPV F6 #406 BFII FPV F6 Typhoon R Spec #118 VK HDT Group A/Group 3 #3249 |
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