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Day 14 · The Prompt SeriesLIVE

Construction Loan Readiness.

Construction loans draw down in progress payments. Builder insolvency, cost escalation, draw-down timing, and the transition to a standard mortgage at completion all need to be understood before you sign a building contract.

Why this matters

Why this matters

A construction loan is not a home loan that pays for a house to be built. It is a facility that advances funds in tranches as construction milestones are reached — and each advancement requires the lender to inspect the property and confirm the milestone has been genuinely completed. The difference between understanding this and not understanding it shows up when the builder asks for a progress payment on a Tuesday and the lender requires 5 business days to process the inspection and release.

Builder insolvency is the risk that most first-time construction buyers genuinely don’t think about until it happens. The domestic building insurance that builders are required to hold in most Australian states only pays out if the builder dies, disappears, or becomes insolvent — not if they simply do poor work or fail to complete on time. Understanding what this insurance covers and what it doesn’t before you sign a building contract is essential.

Cost escalation in Australian construction has been a material risk since 2020. Fixed-price contracts were marketed as protection against this risk, but the detail in those contracts — particularly variation clauses, provisional sum items, and prime cost items — means that many “fixed price” contracts are neither fully fixed nor as predictable as they appear. A buyer who has read their building contract with a solicitor before signing understands what is actually fixed.

**Real case study summary:** A couple signed a $480,000 fixed-price building contract on their knockdown rebuild in outer Melbourne. Eight months into construction, the builder submitted three variations totalling $64,000. Each variation was for items they had assumed were included but were excluded under the contract’s provisional sum and prime cost clauses — floor coverings, landscaping, and site preparation costs that exceeded the assumed allowance. All three variations were contractually valid. None were a surprise to anyone who had read the contract carefully.

The construction loan readiness prompt generates the questions they should have asked their solicitor before they signed.

The fixed-price building contract is neither fixed nor a contract until your solicitor has read it.

What you're building

What you're building

The end result

A construction loan readiness checklist detailing: progressive drawdown tranches, builder insolvency insurance verification, fixed-price contract variation risks, provisional sum allowance reviews, and transition timelines to standard home loans.

What you need

Claude (free tier works), the draft building contract, progress payment schedule, provisional sum item estimates, and builder license details.

Step 14

Copy the prompt.Paste your details.Analyze the output.

Paste the prompt below into Claude or ChatGPT. Replace the bracketed fields with your specific property or portfolio details.

i.Open Claude at claude.ai or ChatGPT at chatgpt.com. Free tier works fine for this prompt.Browser
ii.Copy the full Day 14 prompt below and paste it into a fresh chat.Chat
iii.Replace the bracketed details with your actual property and financial information.Edit
iv.Send. Read the structured output sections carefully.Output
Done. The structured analysis is in front of you.
Heads up

Always verify the AI's assumptions with qualified professionals. This output is a first-pass educational tool, not advice.

01
The Prompt

Construction readiness

Construction loan and building contract checklist · progress drawdown map

Copy & Paste
You are an Australian property finance educator helping a buyer understand construction loan mechanics and risks before signing a building contract. Construction loans are fundamentally different to standard home loans. Help me understand the difference before I commit.

MY DETAILS:
- What I am building: [knockdown rebuild on land I own / new build on land I am purchasing simultaneously / spec build / investment property construction / other]
- State: [NSW / VIC / QLD / SA / WA / TAS / ACT / NT]
- Land cost or value: $[amount]
- Construction contract cost: $[amount]
- Total project cost (land plus construction): $[amount]
- Builder: [I have a fixed price contract signed / I have a quote but not yet signed / I am still finding a builder]
- Builder's registration status: [licensed and registered in my state / I haven't checked / unknown]
- Contract type: [HIA / MBA / custom / I don't know]
- My deposit and available funds: $[amount]
- Finance: [I have spoken to a lender / I have pre-approval for standard purchase only / I haven't spoken to anyone yet]
- My intent: [I will live in the property when built / I will rent it when built]

Return a construction loan readiness assessment with these 6 sections:

## 1. HOW CONSTRUCTION LOANS WORK — THE BASICS
Explain the construction loan process clearly:
- Progress draw-downs: construction loans are not paid in a lump sum. They draw down in stages corresponding to completion milestones. Describe the standard progress payment stages for my state.
- Interest during construction: I pay interest only on the amount drawn down during construction — not the full loan amount. Describe what this means for my cash flow during the build.
- The land and construction split: if I am purchasing land and building simultaneously, explain how the land purchase loan and the construction loan are structured and sequenced.
- Transition to standard loan: when construction is complete, the construction loan typically converts to a standard home loan. Describe this process.
- Timeline risk: construction loans have a maximum build period — typically 24 months. What happens if the build goes over time?

## 2. THE BUILDER RISK — WHAT MOST BUYERS DON'T CHECK
This is the section most owner-builders and construction buyers underestimate:
- Builder registration: how to verify my builder's registration and licence in my state
- Builder's domestic building insurance (also called home warranty insurance or builder's warranty): what it covers, what it doesn't, and why it only pays out if the builder dies, disappears, or becomes insolvent — not if they just do bad work
- Fixed price versus cost-plus contracts: what the difference means for my risk exposure
- Variations: how variations to the contract work, why they are a common source of cost blow-out, and how to protect myself
- Progress payment timing: why the bank's progress payment timeline and the builder's expected payment timeline often don't align
- Builder insolvency: what happens to my project and my money if my builder becomes insolvent mid-construction in my state

## 3. COST ESCALATION AND CONTINGENCY
- Standard contingency: in the current Australian construction market, what contingency percentage should I hold over and above my fixed price contract?
- Common sources of cost blow-out: site preparation, soil conditions, variations, council requirements, connection fees, landscaping, driveways — note what is typically not included in a standard contract
- The items my contract probably doesn't include: list the common exclusions in standard Australian residential building contracts
- Finance contingency: if my project costs more than my loan, how do I fund the gap? Note that lenders will not increase a construction loan mid-build without a new application.

## 4. WHAT LENDERS ASSESS DIFFERENTLY FOR CONSTRUCTION
- Valuation basis: construction loans are assessed on a 'as if complete' valuation — the bank values the finished product, not the current state of the land. Explain what this means for my LVR.
- Builder requirements: most lenders require the builder to be licensed, insured, and using an approved contract. Note what this means for my situation.
- Fixed price contract requirement: most lenders require a fixed price building contract before they will approve a construction loan. An unsigned contract or a cost-plus contract creates problems.
- Land contamination and zoning: if my land has contamination issues or unusual zoning, this can affect the lender's willingness to lend
- Progress payment inspection: lenders typically require an inspection at each draw-down stage. Note what this means for timing and cost.

## 5. MY CONSTRUCTION READINESS CHECKLIST
Based on what I have told you, assess my readiness across each of the following and note what I need to do if not yet complete:
- [ ] Builder is licensed and registered in my state
- [ ] Builder has current domestic building insurance
- [ ] Contract is fixed price and signed
- [ ] All variations risk understood and managed
- [ ] Council approved plans and permits in place or timeline confirmed
- [ ] Finance pre-approval covers the total project cost including contingency
- [ ] I have confirmed my lender accepts this builder and this contract type
- [ ] I understand the progress payment schedule and have cash flow to bridge timing gaps
- [ ] My contingency fund is held outside the loan (lenders do not fund contingencies)
- [ ] I have engaged a solicitor to review the building contract

## 6. QUESTIONS FOR MY BROKER AND BUILDER
Generate 6 specific questions for my mortgage broker and 6 specific questions for my builder based on my situation, focused on the most important risks and gaps I have described.

---
Educational analysis only. Not financial, legal, or construction advice. Construction loans, builder requirements, and consumer protections vary significantly by state. Engage a qualified mortgage broker, a solicitor experienced in construction contracts, and verify all builder credentials independently before signing any building contract.
Run before signing a building contract. Stress-test provisional sums with a solicitor.
A real run
Case Study

A couple signed a $480,000 fixed-price building contract on their knockdown rebuild in outer Melbourne. Eight months into construction, the builder submitted three variations totalling $64,000. Each variation was for items they had assumed were included but were excluded under the contract’s provisional sum and prime cost clauses — floor coverings, landscaping, and site preparation costs that exceeded the assumed allowance. All three variations were contractually valid. None were a surprise to anyone who had read the contract carefully.

The construction loan readiness prompt generates the questions they should have asked their solicitor before they signed.

Step 04 · Refine

Your first run is fine. Your fifth is sharp.

Tune 01

Input the builder's progress payment schedule

Paste the specific contract progress stages (base, frame, lock-up, fit-out) to map out your funding drawdowns.

Tune 02

Stress-test provisional sum items

Add a 10% and 20% cost overrun to the model to see if your cash reserves can absorb builder variations without halting construction.

Tune 03

Verify domestic building insurance coverage

Make sure the policy details are entered to check what happens if the builder encounters solvency issues mid-build.

Save it

Save this construction readiness check in your Claude Project. Keep it as a tracking tool during the building process.

The honest bit

What it still gets wrong.

i.

Progress payments require inspections

Lenders do not release funds immediately. They inspect the building at each stage, which can take 5-7 business days and delay construction payments.

ii.

Builder insolvency insurance limits

Domestic building insurance only triggers if the builder dies, disappears, or is declared insolvent. It does not cover delays or minor disputes.

iii.

Provisional sums are estimates

Provisional sum and prime cost items in building contracts are allowances. If the actual cost exceeds the allowance, you must pay the difference out of pocket.

iv.

Valuation gaps at completion

Banks value the finished property based on market conditions at completion. If the market drops, you may face a valuation shortfall that you must fund.

The Workflow

How this stacks.

Day 14 audits construction loans. Day 21 prepares you for contract review. Day 26 maps settlement risk. Stack them to control builder variations.

The week three vision

Before you sign a building contract.

You'll have mapped your drawdown milestones and cost contingencies.

You'll understand how progress payments work, how to handle provisional sum variations, and how to verify builder insolvency insurance before work starts.

Coming next
15
Day 15 · live now

Refinance sanity check

Refinance cost-benefit and equity release model · serviceability check

Read Day 15