What actually constrains a residential job

A contractor on raw acreage optimises for production. The same contractor on a lived-on lot optimises for not damaging anything, and that produces a completely different price for identical growth.

Published by the Land Clearing Authority editorial team · Last revised 2026-07-29 · Editorial policy · Corrections

Who this is for

Homeowners clearing part of an occupied property
Anyone whose work area is reachable only through a gate or a side passage
People whose quotes came back far higher than an acreage figure suggested

The short answer

Access width sets machine class, and machine class sets what can be cut and how fast. A gate that admits only a compact machine caps production regardless of what is growing behind it.

The route in has to carry the machine without being destroyed, and the material has to come out the same way. Ground protection over turf and paving is a real cost and a real saving against repair.

Buried services on a residential lot include the ones nobody records: irrigation, private drainage, low-voltage cable, and the septic system. The statutory locating process covers public utilities and not private lines.

Everything within reach of the work — fences, vehicles, glazing, a neighbour’s property — slows the operation and changes the method. That is where the price difference against raw land comes from.

What changes the answer

Narrowest point on the route to the work area
What the machine has to cross to get there
Where the septic components and private lines run
Distance from the work to structures, glazing, and boundaries
Whether material can be removed the same way it came in
How much of the surface you need restored afterwards

Residential constraints and what each one costs

None of these appear in an acreage figure, and together they usually exceed the cost of the cutting.

Constraints on an occupied lot and their practical effect
Constraint	Effect on the work	What to settle in advance
Gate or passage width	Caps machine class and production	Measure the narrowest point, including posts
Turf and paving on the route	Requires protection or repair	Who protects, who restores, to what standard
Overhead wires to the house	Restricts machine height and reach	Whether the service drop needs attention
Septic field and tank	No traffic, no disturbance	Position marked before anyone arrives
Private irrigation and drainage	Not covered by public locating	What you know, marked on the ground
Proximity to glazing	Changes cutting method entirely	Standoff distance and screening
Boundary and neighbour	Material must not cross	Boundary certainty, and notice given
Material egress	Everything leaves the way it came	Where the staging area is

Why the statutory locate is not the whole answer

The free national 811 notification process is essential and it covers a specific category of infrastructure.

Member operators mark their own facilities: the public utilities running to and past your property. What the process does not cover is anything privately installed on your side of the meter — irrigation lines, a run of cable to an outbuilding, a French drain somebody put in twenty years ago, the line to a well pump, and frequently the septic system.

On an established residential lot those private installations are often the ones in the way, and the only record of them is what you or a previous owner remembers. Anything you know about needs marking physically before work starts.

Where private lines matter and nobody knows where they are, private locating services exist. Whether that is worth it depends on what is at stake if one is cut.

Ground protection, and the arithmetic of it

This is the line item homeowners most often decline and most often regret.

A tracked machine crossing turf in dry conditions leaves marks. The same machine crossing the same turf when the soil is wet leaves ruts, compacts the root zone, and destroys the structure of the soil beneath. Repairing that means importing material, regrading, and reseeding, and the compacted layer beneath may persist regardless.

Protection — mats, boards, or a temporary route of coarse material — is cheap relative to that repair, and it also protects the machine’s productivity by giving it a stable surface.

The decision worth making explicitly is what condition the crossed surface will be left in, and who is responsible for getting it there. Written down, it stops being a dispute.

Working close to things that must survive

Proximity changes the method rather than merely slowing it, and that is why the price moves.

Reducing a stem with a rotating head throws material. At distance that is irrelevant; near glazing, vehicles, or a neighbour’s property it is the governing consideration. The response is a combination of standoff, screening, directional working, and sometimes a different method entirely — cutting sections down conventionally rather than reducing them in place.

A tree within reach of a structure is not clearing work at all. It is rigged tree work, where sections are cut and lowered under control, and it is priced and insured differently.

The useful question is which parts of your job the contractor considers outside what their crew should take on. A good answer identifies them; a bad answer is that it will be fine.

What drives the cost

Cost drivers on this kind of project
Driver	Effect
Access width	Determines machine class, and therefore production, more than any other factor.
Ground protection	Materials and setup time, offset against repair you would otherwise fund.
Proximity working	Standoff, screening, and slower methods near anything that must survive.
Private service uncertainty	Hand-digging, caution, or private locating where records do not exist.
Material egress route	A single narrow route means many small movements rather than few large ones.
Surface restoration	Returning turf and paving to an agreed condition is a separate scope.

Common mistakes

Quoting acreage without mentioning that access is through a side gate
Declining ground protection and funding the repair instead
Assuming the 811 process covers private irrigation and septic lines
Treating a tree within reach of the house as part of a clearing scope
Not agreeing what condition the crossed surface will be left in

Questions to ask a contractor

What is the widest machine you can get to the work area here?
What protection are you putting on the route, and what will it look like afterwards?
Which parts of this would you not take on with a clearing crew?
How will you work around the septic field and the private lines?

What to do next

Measure the narrowest point on the route, including gate posts
Mark the septic components and every private line you know about
Agree ground protection and restoration in writing
Run the site access checker to see which constraints apply

Questions people actually ask

Why is my small lot more expensive per acre than a big field?

Because almost nothing about the price scales with area on a constrained site. Access, protection, proximity working, and material egress are largely fixed costs that a small area cannot spread. Per-acre figures are misleading on residential work.

Can machines get through a standard garden gate?

Some compact machines can pass through narrow openings, and the trade-off is capability — a machine chosen for width will take smaller stems and work more slowly. Measure the narrowest point and let the contractor match to it.

Do I need to tell my neighbour?

Where work is near a shared boundary, telling them is sensible regardless of obligation, and it is worth confirming where the boundary actually runs before machines get close to it. Only a licensed surveyor can determine that.

Will the lawn recover?

Surface marking usually recovers with time. Rutting and compaction of the root zone may not recover without intervention, which is why protection is worth more than it costs. Agree the standard beforehand.