A site assessment from an earthmover is your first step toward understanding what's involved in any excavation, land shaping, or earthworks project on your property. During this visit, the earthmover will evaluate the ground, access, scope of work, and any regulatory requirements — giving you a clear picture of what the job entails before any machinery rolls in.
What Happens During the Visit?
When an earthmover arrives for a site assessment, expect them to spend time walking the land with you and asking questions about your goals. Whether you're planning a driveway, retaining walls, a building platform, a pond, or drainage improvements, they need to understand the end result you're after.
Key things they'll look at include:
- Site topography — the slope, shape, and natural drainage patterns of the land
- Soil type and ground conditions — clay, sandy, rocky, or fill ground all behave differently under machinery and affect how much work is involved
- Existing vegetation and tree roots — large trees may need removal or protection, and some may be subject to council rules
- Underground services — water, gas, power, and telecommunications lines must be identified before any digging begins. Your earthmover may ask you to contact Dial Before You Dig or they may arrange this themselves or they may arrange this themselves
- Access for machinery — can an excavator or bulldozer physically get onto the site? Gate widths, overhead lines, and soft ground can all create challenges
- Spoil disposal — where will excavated material go? On-site reuse, truck-away, or tipping fees all affect cost
Soil and Ground Condition Checks
Ground conditions are one of the biggest variables in earthworks pricing and planning. A good earthmover will probe or assess the soil visually and may ask whether you have any existing geotechnical reports. In some cases — particularly for building platforms or significant cut-and-fill work — a geotechnical engineer's report may be required before or after the assessment.
BRANZ provides useful guidance on ground conditions and how they relate to building in New Zealand, and your earthmover may reference NZS 3604 requirements if the earthworks are connected to a new build.
Building Consent and Regulatory Requirements
Earthworks in New Zealand can trigger building consent or resource consent requirements depending on the volume of material moved, proximity to boundaries, and your local district plan rules. Your earthmover should flag this during the assessment, but the final responsibility for consents sits with you as the property owner.
As a guide:
- Minor earthworks (small garden reshaping, shallow trenching) are often exempt under Schedule 1 of the Building Act — but always confirm with your local council
- Larger cut-and-fill projects, retaining walls over a certain height, or work near waterways will almost certainly require consent
- Work near streams or wetlands may also require resource consent under the Resource Management Act
Always check with your local council before proceeding. MBIE Building Performance has clear guidance on when consents are needed.
Health and Safety on Site
A professional earthmover will conduct a basic hazard assessment as part of their site visit. Under the Health and Safety at Work Act 2015, earthworks businesses have a duty to identify and manage risks. WorkSafe NZ sets out the requirements for excavation work, including trenching, which can be particularly hazardous.
Expect your earthmover to ask about:
- Known underground hazards (old tanks, pipes, cables)
- Proximity of the public, neighbours, or children to the work area
- Stability of any existing slopes or structures nearby
Safety note: Never enter an unsupported excavation. Trench collapse is a serious risk, and this work must be managed by a competent professional.
What You'll Receive After the Assessment
Following the site visit, a reputable earthmover should provide you with:
| Item | What to Expect |
|---|---|
| Written quote or estimate | Scope of work, machinery required, timeframes |
| Consent advice | Whether building or resource consent is likely needed |
| Spoil disposal plan | On-site or truck-away, and associated costs |
| Site access requirements | Any prep work needed before machinery arrives |
| Assumptions and exclusions | What's not included (e.g. rock breaking, tree removal) |
Prices for earthworks vary considerably depending on ground conditions, machinery required, and project size. As a rough guide, hourly machine rates in NZ can range from a few hundred dollars per hour for a small excavator to significantly more for larger plant — but get a fixed-price or detailed estimate where possible.
Questions to Ask Your Earthmover
- Are you experienced with this type of work (e.g. retaining, drainage, building platforms)?
- Do you handle consent applications, or will I need to arrange those separately?
- What happens if you hit rock or unexpected ground conditions?
- How will you protect my lawn, driveway, or neighbouring property?
- Are you a member of a trade association or do you carry public liability insurance?
When to Call a Professional
Earthworks involving significant cut-and-fill, retaining walls, work near waterways, or any excavation connected to a building project should always be handled by an experienced, insured earthmover. If your project requires a building platform for a new home, your earthmover may need to work alongside a licensed building practitioner — you can find LBPs through Licensed Building Practitioners.
For projects of any meaningful scale, don't rely on a verbal quote alone. A thorough site assessment protects both you and the contractor. You can find qualified local earthmovers on tradedirectory.co.nz.
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