ADS Forestry
Case Study: Fighting Gravity and 3.4 Hectares of Lantana on a Tamborine Mountain Build Site

Case Study: Fighting Gravity and 3.4 Hectares of Lantana on a Tamborine Mountain Build Site

9 February 2026 8 min read
AI Overview

See how ADS Forestry cleared a 42-degree slope for a new build on Tamborine Mountain, turning thick lantana into a stable, clean construction site.

Building a dream home in the Scenic Rim or across the Gold Coast Hinterland is a top-tier goal for many Queenslanders, but the reality of the dirt usually tells a different story. We recently wrapped up a project on a 3.4 hectare block on the edge of Tamborine Mountain that perfectly illustrates why rural site prep isn't just about knocking down a few trees. The owners had bought a stunning piece of land with views all the way to the coast, but there was a massive catch: about 70 percent of the building envelope was sitting on a 42-degree slope, completely choked out by a wall of Lantana and Camphor Laurel that hadn't been touched in over 14 years.

When we first rocked up for the site inspection, you couldn't even see the ground. The lantana was three metres high in places, weaving through fallen timber and hiding old star pickets from a fence that had long since surrendered to the scrub. The clients were stuck. Their house designer needed a feature survey, but the surveyors couldn’t get their equipment through the thicket. The soil testers couldn't get their rig in either. They were flat out trying to find someone who wouldn't just look at the incline and shake their head. That is where we step in.

The Challenge: Why Conventional Gear Fails on the Slope

Most blokes with a skid steer or a standard tractor will take one look at a 40-degree-plus gradient and politely decline the job. For good reason too, as those machines have a nasty habit of tipping when the centre of gravity gets wonky on shale or loose volcanic soil. On this Tamborine property, the grade was steep enough that even walking up it was a struggle for the owners.

The complexity of rural site prep in South East Queensland often comes down to the mix of terrain and Other Scrub/Weeds. If you go in there with a dozer and just start pushing, you end up with massive piles of green waste that take years to rot down and become a haven for snakes and vermin. More importantly, you strip the topsoil. On a steep slope, if you lose your topsoil and the root structures holding the earth together, the first summer storm that rolls through will wash half your property into the neighbour's gully.

We utilized our specialized steep terrain clearing equipment. Our machines are designed with a low centre of gravity and high-traction tracks that allow us to work across and up faces that would leave other gear sliding down the hill.

The Process: From Jungle to Build-Ready in 4 Days

The timeline for a project like this is usually what worries people the most. They expect us to be there for weeks. In reality, for this 3.4 hectare block, we had the main building pad and the initial access tracks sorted in just four days of hard yakka.

Day 1: Establishing Access You can't clear what you can't reach. We started by cutting a heavy-duty access track from the main road. This isn't just for us; it’s for the concrete trucks, the tradies’ utes, and the delivery drivers who will be coming later. We used forestry mulching to clear a 4.5-metre wide path, turning the standing vegetation directly into a thick layer of mulch. This mulch stays on the ground, providing immediate traction and preventing the track from turning into a mud bath if it rains.

Day 2 and 3: The Big Push We spent the next 48 hours tackling the main lantana infestation and thinning out the Privet and Wild Tobacco that had taken over the western face. Because our mulcher shreds everything in its path, there was no need for burning or hauling off-site. We processed the woody weeds down into a fine material that blankets the soil. This is a massive win for the building process because it keeps the dust down and stops the weeds from germinating the second you turn your back.

Day 4: Fine Tuning and Safety The final day was spent clearing around the "keeper" trees. The owners wanted to keep a few stand-out Gums and Stringybarks near the house site. We worked carefully around the root zones, removing the fuel load without damaging the trees they actually wanted to live with.

Managing the Invasive Problem

One thing many new rural property owners don't realise is that weeds like Cat's Claw Creeper and Balloon Vine can actually compromise the structural integrity of your future fence lines and outbuildings if they aren't dealt with properly during the site prep phase.

On this particular project, the weed removal wasn't just about aesthetics. The Groundsel Bush was so thick it was holding moisture against the soil, keeping the ground soft and unstable. By mulching it back into the earth, we allowed the ground to breathe and dry out, which made it much easier for the earthmovers to come in later and cut the actual house slab.

If you leave these weeds alone, they just wait for the first bit of disturbed soil to go crazy. By mulching them deeply, we create a barrier that makes it much harder for things like Mist Flower or Madeira Vine to re-establish themselves while the house is being built.

What to Expect During the Build Site Prep Phase

If you are planning to build in the Scenic Rim or Logan area, you need to think about the order of operations. We reckon it's best to get us in before the surveyors.

  1. Initial Clearing: We clear the scrub so the surveyors can actually see the markers and the contours of the land.
  2. Access: We ensure the heavy vehicles can get in. There is no point paying for a load of timber if the delivery truck gets bogged 100 metres from the site.
  3. Fire Safety: Part of our job is creating fire breaks and reducing the "fuel load." In Queensland, councils are very strict about the Bushfire Attack Level (BAL) rating. By clearing the high-risk vegetation 20 to 30 metres back from where the house will sit, we can often help owners achieve a lower BAL rating, which can save them tens of thousands of dollars in specialised building materials.
  4. Paddock Reclamation: Frequently, after the house site is cleared, we move on to paddock reclamation for the rest of the property. On the Tamborine job, once the house site was done, we spent an extra day opening up a bottom flat that had been lost to Bauhinia (Pride of De Kaap) for years.

The Result: A Change You Can See Instantly

By the end of the four days, the transformation was fair dinkum incredible. We started with a block that looked like a wall of green noise and ended with a clear, navigable site. The surveyors were able to come in the following Monday and finish their work in half the time they’d estimated.

The mulch we left behind was about 100mm thick in most places. This acts like a protective skin for the hillside. On steep terrain, this is the secret to a successful build. If you bare-earth a 40-degree slope, you’re asking for trouble. The mulch allows the rain to soak in slowly rather than sheeting off and taking the hillside with it.

We also managed to find a couple of old rock outcrops that the owners didn't even know they had. They ended up changing the design of their outdoor deck to incorporate these natural features, which wouldn't have been possible if we hadn't cleared the Long Grass and scrub properly.

Why This Matters for Your Property

Rural site preparation isn't just about making things look pretty. It’s about logistics, safety, and long-term land health. When you're dealing with the steep hillsides of South East Queensland, you can't afford to take shortcuts. Using the wrong equipment or the wrong technique doesn't just waste time; it can actually ruin the ground you're trying to build on.

The clients on this Tamborine Mountain project saved themselves months of manual labour and potentially thousands in council complications by getting the clearing done right the first time. They now have a clear path forward for their builder, a reduced fire risk, and a property that they can actually walk across without needing a machete and a prayer.

Whether you're dealing with a vertical wall of lantana or you just need to get a track down into a gully that’s seen better days, we have the gear and the experience to get it done. We don’t mind the steep stuff – in fact, we reckon that’s where we do our best work.

If you’ve got a block of land in the Gold Coast, Brisbane, or the Scenic Rim that looks like an impenetrable wall of green, don't stress. It’s probably not as bad as you think once the right machinery gets a go at it.

Ready to see what's actually under all that scrub? get a free quote today and let's get your building site sorted.

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