DTI Boundary marks - what are they for?

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nzkc

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#298419 16-Jun-2022 00:13

Hi,

Neighbour sold their house a few weeks ago that is a rental. This week some markers have appeared on our shared driveway labelled "DTI Bndry" which I interpret as "DTI Boundary". Did some googling and the best I can come up with is Debt To Income but I'm not sure how that would relate to boundary markers exactly (I would have thought to buy the property the lender would have done debt to ratio values then). They are not right at the end of the driveway and are a few meters up. Haven't seen any other markers anywhere else.

The driveway is shared and owned by 6 properties equally.

The property sold is the largest section and I suspect is going to be subdivided (a guess). Bit of a shame as it is a fairly nice property.

Any ideas what these markers would be for and/or mean?

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#2930149 16-Jun-2022 00:34

Boundary markers normally mark the extent of land parcels or parts such as right of ways.

I’d guess that the new owner/developer wants to be able to work to the actual boundaries rather than assuming existing features match the legal boundary of the parcel of land they purchased. You could ask to find out what they are actually there for.

I think that the markers are at the start, and not the end, of the driveway. Most boundaries are not where the driveway meets the road but a few metres back to leave space for a footpath, a berm, a kerb, or whatever the local council requires.

DTI is likely to be something like digital topographic imaging.

frankv

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#2930173 16-Jun-2022 08:02

Searching the Companies Register finds a few matches for DTI, but the only ones likely (to my eye) to be relevant are closed.

Handsomedan

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#2930185 16-Jun-2022 08:36

The only reference I could find was in a plan where there was Drainage and utilities marked on a plan - DTI was not in the plan's key, but was marked on the plan, where the drive bisected drainage and utilities routing.

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eracode

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#2930192 16-Jun-2022 08:53

Hammerer:

DTI is likely to be something like digital topographic imaging.

That makes complete sense but I'm wondering if it could be an identifying mark by the surveyor outfit who placed them - i.e. firm called DTI.

Sometimes I just sit and think. Other times I just sit.

1101

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#2930274 16-Jun-2022 10:18

Hammerer:

Boundary markers normally mark the extent of land parcels or parts such as right of ways.

I’d guess that the new owner/developer wants to be able to work to the actual boundaries rather than assuming existing features match the legal boundary of the parcel of land they purchased. You could ask to find out what they are actually there for.

Might be of some concern if that new owner was led to believe he actually owns the driveway (rather than shared) .

Why else would these boundary markings now be there ? Unless the council or Utility company(water/power) was snooping around .

outdoorsnz

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#2930286 16-Jun-2022 10:56

Maybe the new owner just wants to know where the property boundaries are for future plans such as new fence, building or sub division. Most of the properties I have owned boundary fences are in the incorrect place.

Also quite a few people don't have a clue about right of ways and ownership.

frankv

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#2930297 16-Jun-2022 11:16

eracode:

Hammerer:

DTI is likely to be something like digital topographic imaging.

That makes complete sense but I'm wondering if it could be an identifying mark by the surveyor outfit who placed them - i.e. firm called DTI.

Drainage and Trenches Infrastructure?

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nzkc

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#2930327 16-Jun-2022 12:28

Some good and interesting responses that have me thinking. Yes the drive has services running along it including drainage - though I'm unaware of drainage issues on any of the properties.

Can't ask the new owner anything as they aren't living at the property and I don't know who they are. They've not announced themselves to any of the residents afaik. I still have contact with the previous owner so may be able to get a contact that way.

Markers have only arrived this week. House was sold a few weeks ago. So not part of the actual sale. Maybe some remedial work was identified as part of the sale and it's the start of that. Not that I have any idea of what that might be. Have only noticed markers right at the boundary of the drive and no others. And yes they're a few metres back from the road/path/berm/etc. Actually further back than I would expect is council owned and within our (as in all properties) shared responsibility

Maybe they think they own the drive, though it was very clear on our title it's shared and owned equally when we bought our place. Therefore I'm leaning away from it being that (also not excluding it).

elpenguino

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#2930337 16-Jun-2022 12:43

Do they look like they're on the corners of a plot?

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nzkc

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#2930570 16-Jun-2022 20:58

elpenguino:
Do they look like they're on the corners of a plot?

No. Though I can't be 100% certain without digging out plans.

Seemed to be more making a line across the driveway. Would be close to boundary at that point. There's a fence along one side of the boundary and that goes past this line. Does not intersect through it though.

Bung

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#2930652 16-Jun-2022 23:05

What do these markers look like? Is it like the spray can painted marks showing power, gas, telco ducts etc?

DTI can be a drainage term "depth to invert", invert being bottom of sewer or stormwater pipe.

Hammerer

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#2930656 16-Jun-2022 23:50

Bung:

DTI can be a drainage term "depth to invert", invert being bottom of sewer or stormwater pipe.

That makes more sense.

djtOtago

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#2930761 17-Jun-2022 09:14

frankv:

Drainage and Trenches Infrastructure?

We used to find and mark where infrastructure stuff like water, sewage and drainage was before bring in heavy equipment, so we could try and avoid potentially damaging it driving over it. It doesn't take much ground compression to crack old clay pipes, and even newer PVC pipes will often crack.

nzkc

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#2931540 19-Jun-2022 11:00

Someone asked "what do they look like", so I have grabbed photos. These are of the "pink" ones, but I see there's now a blue one too.

One of my other neighbours intercepted one of the workers and managed to extract its from the "connections department in Auckland water". Could be for new properties, could also be connecting to the mains for the existing property as that is on tank water (we're on mains)

I would imagine that the pink markers are sewerage or storm water. Blue is mains. Or the pink ones mark the edge of the surveying point?

As you'll see they have some numbers (in meters) sprayed next to them so I would think that's depth. Whoever said "Depth to Invert" is probably bang on.

Bung

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#2931541 19-Jun-2022 11:27

The 2.5m reminds me of the new subdivided property beside us in Wellington 1989. The sewer main was close to the surface as it ran through our place but had been covered in fill nextdoor. To connect they had to dig down about 2m. The actual connection was done by a guy suspended by his ankles hanging off the digger bucket like a bungy jumper. H&S didn't count for much then if no-one was watching.

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