Removing Leylandi hedge close to house
Removing Leylandi hedge close to house
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Discussion

usn90

Original Poster:

1,959 posts

92 months

Yesterday (18:56)
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I have around 30-40ft of Leylandii hedge running alongside my house, it’s around 6feet from an extension which was built 2 years ago.

Can I just remove the hedge, it’s around 12-14ft high on clay soil

shtu

4,095 posts

168 months

Yesterday (19:03)
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Don't see why not.

Get it down before the spring and the birds start nesting.

My approach with taking out roughly 300ft of the stuff was to crop off all the branches, leavng the trunks, then using leverage to rip them out. You might find the fast way is to hre a moderately-big digger for the job.

usn90

Original Poster:

1,959 posts

92 months

Yesterday (19:14)
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My concern was about disruption to the ground next to the foundations.

I’m unqualified and perhaps over paranoid on the matter

shtu

4,095 posts

168 months

Yesterday (19:35)
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The roots usually aren't massively deep on those.

TA14

14,067 posts

280 months

Yesterday (19:35)
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usn90 said:
My concern was about disruption to the ground next to the foundations.

I m unqualified and perhaps over paranoid on the matter
That's the worry but you should be OK. Many houses up to the 70s had poor footings. 80s onwards is generally OK. Now usually a metre and often deeper in your situation - ie building control will have made sure that the footings are of an adequate depth, hopefully, so you should be OK.

Byker28i

83,180 posts

239 months

Yesterday (19:47)
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shtu said:
The roots usually aren't massively deep on those.
We took out old conifers 10m from the house. The roots while not very deep, ran all the way to the house and damaged the drains.

We had a professional in. Took the trees down for £750, stump ground a lot of the rest, roots and stump for £600, you'd be surprised by how much sawdust

Landlubber

102 posts

71 months

Yesterday (19:54)
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Kill them, burn them with fire!

ROTELLA

20 posts

3 months

Yesterday (19:57)
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if you've got the space a tractor with a front loader & a chain will just pull them out - worked a treat on ours!

smokey mow

1,329 posts

222 months

Yesterday (19:57)
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If the foundations for the extension were designed correctly when it was built 2years ago, the proximity of tree roots shouldn’t cause them any issues.


usn90

Original Poster:

1,959 posts

92 months

Yesterday (20:00)
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TA14 said:
That's the worry but you should be OK. Many houses up to the 70s had poor footings. 80s onwards is generally OK. Now usually a metre and often deeper in your situation - ie building control will have made sure that the footings are of an adequate depth, hopefully, so you should be OK.
That’s the thing, we recently bought the house, the extension was done by previous owner.

No building regs came up during the process so an indemnity policy was taken out. I’ve had someone to drill holes
To check foundations which are 900mm deep which according to google isn’t quite deep enough?

My thinking is by removing the hedge helps matters

Imasurv

521 posts

106 months

Yesterday (20:09)
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Tread very carefully. The founds sound inadequate and removing the trees will cause the subsoil moisture levels to return to normal levels (the trees are no longer removing any moisture), leading to potential clay heave. Would suggest a specialist is sought.

That being said, if they stay in and we have a dry summer that could be worse!

Leylandii at 2m away would probably require piled founds in high shrinkage soils, at the very least over 2m deep strips….

Edited by Imasurv on Tuesday 17th February 20:12

usn90

Original Poster:

1,959 posts

92 months

Yesterday (20:19)
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We were planning on eventually extending above the extension hence having the foundations checked…


Imasurv

521 posts

106 months

Yesterday (20:28)
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Be interesting to see what a structural engineer thinks about it - depends on a lot of factors, shrinkability of the soil, height of the trees if being removed or remaining, what the founds are sitting on (assuming undisturbed virgin ground). If low shrinkage soil and not mature trees you could be ok… would definitely not allow them to get any higher and potentially get advice on removing them asap.

Lotobear

8,596 posts

150 months

Yesterday (20:41)
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These are a high water demander so you need to be careful on clay soil due to the risk of heave once removed. I would take advice from an arborculturist before proceeding

Little Lofty

3,784 posts

173 months

Yesterday (22:00)
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I was always told they should be reduced gradually to prevent heave.

Cheib

24,986 posts

197 months

Yesterday (22:06)
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Definitely professional advice ! If you had a structural survey down when you bought the house did they not mention them ? I suspect a structural surveyor is going to tell you need remedial work to the foundations though….

I wonder if you removed the hedge gradually you would be okay ? Reduce height of the whole hedge by say a third this year and then next year cut some of the trunks hear the ground. Probably take a few years and be a bit of an eye sore but maybe that would work without disrupting the house.

Chumley.mouse

879 posts

59 months

Yesterday (22:43)
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In my experience of digging conifer/ laylandi out I’ve found the roots to be quite small/thin compared to other trees. They tend to have lots of smaller roots rather than big thick ones…….makes it easier to dig them out.

This one was probably about the same as yours 15ft ish.


This one was bigger about 25ft. Both came out relatively easy.





At the size yours are i would say the roots wont go down further than the foundations.

Take one down and dig the stump out and see ? A grafter and reciprocating saw will have it out in no time