Guide
How to budget your house build and keep payments under control
Most house builds go over budget in the same places: finishes chosen late, advances never adjusted, and small cash payments nobody added up. A budget by phase and a few payment rules prevent most of it.
Build the budget by phase
Split the budget the way the work happens, then split each phase into its main items.
| Phase | Main items |
|---|---|
| Design and approvals | Architect, structural engineer, approval fees, soil test |
| Grey structure | Excavation, concrete, steel, blocks, plaster, labour, water |
| Finishing | Electrical, plumbing, tiles, stone, woodwork, kitchen, aluminium, paint, fixtures |
| Handover | Snag repairs, cleaning, utility connections |
| Contingency | For the unexpected, commonly about 10% of the total |
Decide the finishes early
Finishing is where budgets slip, because choices are made late and one at a time. Choose the tiles, sanitary ware, kitchen and lights before the grey structure ends, price them, and put them in the budget.
Rules for paying
- Pay for work done and checked, not for time passed.
- Keep advances small, and adjust them against the following bills.
- Keep proof of every payment: a bill, a receipt or a transfer slip.
- Hold back a small retention, often around 5%, until the snag list is cleared.
- Give petty cash in small amounts, against receipts, and top it up weekly.
- Compare what you have paid each supplier with what they delivered.
Contract types you will meet
| Contract | How it works | Watch out for |
|---|---|---|
| Labour only | You buy the material; the contractor supplies the labour at a rate per square foot | Controlling material is your job: track every delivery and release |
| Grey structure with material | The contractor builds the grey structure at a rate per square foot, material included | Write down the brands, steel grade and concrete mix, and check them |
| Turnkey | One contractor builds and finishes the whole house at an agreed price | A clear specification for every finish, and payments tied to stages |
Watch the cash flow
Money is needed in waves: large payments for concrete and steel during the grey structure, then for tiles, woodwork and fittings during finishing. A month-by-month cash forecast shows when you need funds, so work doesn’t stop while you wait for money.
How Buildiary does this
Buildiary keeps the budget by phase, shows what is committed in orders and what has been paid, and forecasts the cash you will need month by month. Every payment carries its proof, and the owner approves petty cash.
Questions people ask
How much contingency should I keep when building a house?
Many owners keep about 10% of the total budget for the unexpected, and more if the design is not final.
Should I pay my contractor in advance?
A small mobilisation advance is common. Keep it small and adjust it against the following bills, so payments always follow work done.
What is retention in a construction contract?
A small part of each payment, often around 5%, held back until the snag list is cleared and the work is handed over.
More guides
The stages of building a house, from design to handover
The 14 stages of building a typical two-storey house in Pakistan and the Gulf, how long each takes, what depends on what, and what to check before moving on.
How to stop material going missing on a building site
Cement, steel, tiles and fittings are a large part of a house’s cost. A simple routine (order, receive, store, release, reconcile) keeps them under control.
How to keep a construction site diary that settles arguments
What a daily site diary should record (weather, people, work done, deliveries, instructions and problems) and why it protects owners and builders alike.
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