Complete timeline for moving into a new build

Buying a new-build home in the UK follows a very different timeline compared with purchasing an existing property.

It can feel straightforward at first. The process is tightly scheduled and often depends on construction progress, mortgage approvals and legal deadlines.

Below is a clear, step-by-step guide to the full journey - from reservation to moving day.

1. Reservation stage

The process begins when you select your plot and pay a reservation fee, typically between £500 and £2,000. At this point, the developer takes the property off the market.

From the date of reservation, you are usually given around 28 days to exchange contracts, making this one of the most time-sensitive phases of the process.

During this stage, it's important to:

• Secure a mortgage agreement in principle
• Appoint a solicitor experienced in new builds
• Begin renewing legal documents early

Failure to meet the exchange deadline can result in losing the reservation and the property.

2. Legal work and mortgage applications (weeks 1-4)

Once reserved, the next stage involves progressing your mortgage application and legal checks.

Your solicitor will review:

• Contract terms
• Planning permissions
• Developer warranties (such as NHBC or similar schemes)
• Site-specific legal obligations

At the same time, your lender will carry out a full mortgage assessment and property valuation.

The stage can last anywhere between 2 to 4 weeks. Everything must be completed within the 28-day exchange window.

3. Exchange of contracts

Once both legal and mortgage contracts are complete, you will exchange contracts with the developer.

At this point:

• You pay your deposit (usually 5-10% of the property price)
• The agreement becomes legally binding
• You commit to purchasing the property

A key feature of new builds is that buyers often exchange contracts before builders finish the home.

4. Construction phase

This stage can vary significantly depending on the development stage.

Typical timelines include:

• 0-3 months for near-complete homes
• 6-12+ months for early stage off-plan properties

During this time, developers provide progress updates. Delays can occur due to weather, supply chain issues or construction scheduling.

5. Notice to complete

When the property is ready, the developer issues a 'notice to complete'.

This is a formal instruction that gives you 10 working days to finalise everything, including:

• Mortgage funds release
• Legal completion arrangements
• Moving preparations

This is one of the most intense phases of the process because to the short deadline.

6. Pre-completion inspection (snagging)

Before completion, you will inspect the property to identify any defects, known as 'snags'. These might include cosmetic issues or minor construction faults.

You can:

• Conduct the inspection yourself, or
• Hire a professional snagging surveyor

7. Completion and moving day

Completion is the final stage of the process.

On this day:

• Funds are transferred to the developer
• Ownership officially changes
• You receive the keys to your new home

At this point, you can move in immediately.

Typical timeline overview

The overall duration depends heavily on whether the property is already built:

• Completed homes: around 4-8 weeks
• Mid-construction homes: around 3-6 months
• Off-plan developments: 6-12+ months

Key considerations for buyers

New-build purchases require careful planning. Common challenges include delays, strict deadlines and possible uncertainty around construction timelines.

To avoid issues:

• Secure mortgage approval early
• Work with solicitors experienced in new builds
• Avoid booking removals too early
• Prepare for possible construction delays

Final thoughts

The new-build process can be smooth and efficient when well-managed, but it demands preparation and flexibility. Understanding each stage in advance helps buyers avoid surprises and plan their move the confidence.

Disclaimer

newhomesforsale.co.uk is a property portal and not a financial advisor, mortgage broker or mortgage lender. Always seek independent financial advice before making significant decisions about your money, mortgages or purchasing a property.

All information included in our articles is accurate to the best of our knowledge at the time of publication. However, any references to dates, prices and availability are subject to change without notice.

Please note that stock images used on this website are licensed from Canva.com.

Publish date 19th June, 2026
Reading time: 3 minutes
Written by Heather Bowles

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