New-Build Budget Checklist: Costs to Plan For

When you’re planning a new home, it’s natural to start with the price of the house. But what about the curtains, moving costs or somewhere to live while it’s being built?

Some costs may already be included in your package or building contract. Others will need their own place in your budget.

Getting clear on those details early helps you understand the full picture and make decisions along the way. Here’s a practical checklist to help you get started.

Start with what’s included

Before adding anything to your budget, ask your Classic Builders team to walk you through the plans, specification and written inclusions.

Then make three simple lists:

·         Included: items covered by the agreed price.

·         Still needed: items outside the agreement that you’ll need to budget for.

·         Optional: upgrades or extras you’d like to consider.

Put a confirmed price or clearly labelled allowance beside each item. Keep money for unresolved costs separate from the amounts you’ve already committed.

If you’re considering a package, our House + Land inclusions checklist is a useful starting point. For Design + Build, ask how the price relates to your particular site, plans and specification.

Check the costs before construction

There’s work to do before your home starts taking shape. Depending on your project and agreement, you may need to allow for:

·         Buying the land.

·         Legal advice and title information.

·         Surveying and ground investigations.

·         Design and engineering.

·         Approval fees.

·         Investigating services and connections.

Ask which costs are included, which are separate and which still need to be confirmed.

The section can make a difference too. A plan that looks right for your budget may need different foundations, additional drainage or other work to suit the site. Understanding those requirements early helps you build a more realistic budget.

Plan for life during the build

While your new home is being built, everyday life carries on.

You may be paying rent, an existing mortgage or temporary accommodation costs. Think about how those commitments fit alongside the payments for your new home.

Talk with your lender about payment dates, how funds will be released and whether valuations, inspections or other fees need to be included.

Our turnkey and progress payments guide can help you prepare for that conversation.

If you decide to change something during the build, ask about both the cost and any effect on timing. Agree changes in writing before the work goes ahead, then update your budget.

Think about what you’ll need on moving day

Picture your first few weeks in the home. What needs to be ready straight away, and what could you add later?

Work through these details before you finalise your budget:

·         Outdoor spaces: confirm what’s included for the driveway, paths, fencing and landscaping.

·         Window coverings: check whether curtains or blinds are included, and price them if they aren’t.

·         Appliances: compare the specification with what you’ll need in your kitchen and laundry.

·         Services: allow for internet and other connections, including any installation work.

·         The move: consider movers, storage and any furniture you’ll need.

·         Insurance: confirm the cover you need and when it should begin.

·         Everyday extras: think about shelving, storage or garden equipment that will help you settle in.

Check each item against your agreement so you don’t count it twice. If the driveway is already included, it doesn’t need another allowance in your extras list.

Bring the whole budget together

A simple way to organise the total is:

Total project budget = agreed land and build costs + required extras + professional and finance costs + living and moving costs + contingency.

Only add costs that haven’t already been included elsewhere. Use quotes and information for your actual project, and clearly mark anything that remains an estimate.

Contingency is money set aside for uncertainty. There isn’t one percentage that suits every home or section. Ask your builder and advisers which costs are still unresolved and what allowance makes sense for those particular risks.

As details are confirmed, replace estimates with agreed amounts so your budget stays useful.

Understand what fixed price means

A fixed price covers the scope agreed in your contract, subject to its terms. It doesn’t automatically include every extra you might choose later.

Ask your Classic Builders team to explain the exclusions, allowances and how variations are handled. If you choose an upgraded finish or change the design, make sure the agreed cost is reflected in your budget.

Your solicitor can help you understand the contract terms before you commit.

Start with a conversation

You don’t need to arrive with every cost worked out. Bring your budget, your priorities and the questions you’d like help answering.

Talk with your local Classic Builders team about the home you’re considering. We can help you understand what’s included, what needs checking and which decisions come next.