Core
Cost Planning Estimating Services in New Zealand
What is cost planning services?
Professional Estimating provides cost planning services across New Zealand. We measure 8 scope items for cost planning work from your PDF, DWG or Revit drawings, deliver an Excel quantity schedule and marked-up PDF plans in 3–5 business days, and confirm a fixed fee in NZD before any work starts.
Elemental cost plans that follow your design from concept to tender, so the budget is tested at every stage rather than at the end.
A cost plan sets a budget for a project and then checks the design against it as the drawings develop. Instead of one estimate at tender time, you get a cost picture at concept, preliminary design and developed design, each one more detailed than the last. Problems are found while they can still be designed out, not after the tenders come in over budget.
We prepare cost plans by building element: substructure, frame, upper floors, roof, external walls, windows, internal walls, finishes, fittings, services and external works. Early on, elements are priced using rates per square metre of floor area or per element quantity. As detail increases, we replace those rates with measured quantities.
Each update shows what changed and why. If the design grew by forty square metres or the cladding changed from weatherboard to brick, you see the cost effect against that change, which makes design decisions easier to make and to explain to a client or lender.
Scope
What do we measure in a cost planning takeoff?
| Item | Unit | What it covers |
|---|---|---|
| Gross floor area | m² | Measured to a consistent rule so rates compare like for like. |
| Substructure | m² / m³ | Foundations, slabs and ground works by element. |
| Frame and upper floors | m² | Structural frame and suspended floors. |
| Roof and external walls | m² | Envelope elements with cladding and roofing types stated. |
| Windows and doors | m² / no. | Joinery by area and count. |
| Internal walls and finishes | m² | Partitions, wall, floor and ceiling finishes. |
| Services | m² / item | Plumbing, mechanical, electrical and fire as elemental allowances. |
| Contingencies and escalation | % | Design, construction and escalation allowances stated separately. |
Deliverables
What do you receive?
Cost plans are delivered as an elemental summary with supporting detail, plus a change log comparing each version with the last.
Download the full estimate summary sample (PDF, 30 KB)
| Itemised quantity sheet | Excel + PDF |
| Marked-up plans | Colour-coded PDF |
| Material and labour schedule | Excel |
| Assumptions and exclusions list |
Who it is for
Who is this estimate for?
- Builders
- Price design-and-build work before the drawings are finished.
- Subcontractors
- Understand where a trade package sits within the overall budget.
- Developers
- Test feasibility and keep the design within the funded budget.
- Architects
- Show clients the cost effect of design options at each stage.
Process
How does a cost planning estimate run?
STEP 01
Upload plans
Send the current drawings, the target budget and the stage of design.
STEP 02
Scope confirmation
We agree the element breakdown, contingency levels and any known exclusions.
STEP 03
Takeoff and review
The plan is priced by element and checked against benchmark rates for similar NZ work.
STEP 04
Delivery
You receive the cost plan, assumptions list and a change log on each update.
New Zealand context
Which NZ standards apply?
New Zealand projects commonly follow the NZIA design stages, from concept through preliminary and developed design to detailed design. Cost plans map naturally onto these stages, and many clients ask for an updated plan at the end of each one before approving the next.
Escalation matters here. Construction costs in New Zealand have moved sharply in recent years, so a cost plan with a long lead time to tender should include a stated escalation allowance rather than pricing everything at today's rates.
We measure and price to the drawings. Design compliance and building consent remain with your designer and building consent authority.
Cost drivers
What drives the cost of cost planning work?
01
Design maturity
Concept-stage plans carry larger contingencies because more is unknown. As the design firms up, contingency reduces and measured quantities replace rates.
02
Building form
The ratio of external wall to floor area has a big effect. Compact, simple forms cost less per square metre than long, articulated ones.
03
Specification level
Finishes, joinery and services quality move cost per square metre more than most clients expect, especially on residential work.
04
Time to tender
A long gap between the cost plan and tender needs an escalation allowance, particularly in a moving market.
Where do cost planning estimates go wrong?
The most common failure is a cost plan that is prepared once and never updated. The design keeps moving and the budget falls behind it, so the overrun only shows up when tenders arrive. We price each design stage and show the movement.
Another is mixing contingency into the rates so nobody can see it. When contingency is hidden, it gets spent twice or not at all. We show design, construction and escalation contingencies as separate lines.
Finally, external works and services connections are often left as small round numbers. Driveways, retaining, stormwater and power supply to site can be a large share of a residential budget, so we price them properly from the site plan.
FAQ
Cost Planning Services: frequently asked questions
What is the difference between a cost plan and an estimate?
An estimate prices a design at one point. A cost plan sets a budget and is updated as the design changes.
Can you start from concept sketches?
Yes. Early plans use floor area and elemental rates, refined as detail is added.
How often should a cost plan be updated?
At the end of each design stage, and whenever a major design change is proposed.
Do you include contingency?
Yes. Design, construction and escalation contingencies are shown separately so they can be reviewed.
Can a lender or valuer use the cost plan?
Many do. We state the basis, exclusions and date of pricing so it can be relied on appropriately.
Related services
- Construction Estimating
A complete, trade-by-trade cost estimate built from your drawings, so you can price, tender or test feasibility with confidence.
- Bill of Quantities Services
A full bill of quantities measured trade by trade, so every tenderer prices the same described scope and their prices can be compared line by line.
- Residential Estimating
Estimates for new homes, townhouses, alterations and additions, measured from your consent drawings and laid out the way builders price.
- Commercial Estimating
Measured estimates for offices, retail, fit-outs and mixed-use buildings, packaged by trade so you can tender subcontractors cleanly.
Get a quote
Send your plans for a cost planning estimate
Upload your drawings and we will reply with a fixed fee and turnaround before any work starts. No obligation.
- — PDF, DWG and ZIP accepted
- — Fees in NZD, excluding GST
- — Prefer email? Use the link in the footer