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What Happens After You Reserve a New-Build Home?

10 August 2026

Written by Holly Brennan

Last month, we looked at Buying Your First New-Build Home: From Research to Reservation, covering the steps involved in finding and reserving a new-build property. Reserving a new-build home is a major milestone, but many first-time buyers are surprised by how much still happens before they can move in.

Reserving a new-build home is a major milestone, but many first-time buyers are surprised by how much still happens before they can move in.

Understanding the stages between reservation and completion can help manage expectations and make the process feel less overwhelming.

Submitting Your Mortgage Application

Once your plot is reserved, you’ll usually submit your full mortgage application.

Your lender will carry out detailed financial checks and arrange a valuation of the property before issuing a formal mortgage offer. It’s important to provide any requested information promptly to avoid delays.

Once the offer is issued, both you and your solicitor will receive confirmation.

The Conveyancing Process

At the same time, your solicitor will begin the legal work required to progress your purchase.

This includes:

  • Reviewing the contract documentation
  • Carrying out various searches, e.g. local authority search, drainage search, environmental search, coal search and a radon search if the property is in a certain area of the country
  • Checking title and ownership details
  • Reviewing rights of way and legal restrictions on the title register, as well as restrictive/positive covenants that may be presented in the transfer. Covenants explain what can and cannot be done during your ownership
  • Investigating estate management arrangements
  • Raising enquiries with the developer’s legal team

Although much of this work happens behind the scenes, it’s designed to ensure you fully understand what you’re buying and to identify any issues before you become legally committed. Your solicitor will report to you fully on the findings and discuss at length if there are any concerns.

Exchanging Contracts

Unlike a traditional house purchase, buyers often exchange contracts before the property has been fully built.

Once your solicitor is satisfied with the legal work; your mortgage offer is in place and you are fully comfortable in progressing, then contracts can be exchanged. At this stage, the transaction becomes legally binding and you’ll usually pay your deposit.

For many buyers this feels like a significant step, but there may still be some time before the property is ready to move into.

Waiting for Your Home to Be Built

After exchange, attention turns to construction.

Depending on the build stage when you reserved the plot, you may wait several weeks or months before completion. During this time, the developer will usually provide updates on progress and keep you informed of key milestones.

You may also be asked to finalise any outstanding specification choices or upgrades if these haven’t already been agreed.

Although a fixed completion date is not always available immediately after exchange, your developer and solicitor will keep you updated as the property nears completion. A fixed completion date is only available if the property is structurally complete.

Understanding Snagging

One of the most common concerns for first-time buyers is snagging.

While new-build homes are inspected before handover, it isn’t unusual for buyers to spot minor cosmetic issues after moving in. These may include small paint imperfections, adjustments to doors or other finishing touches.

Developers will usually have a snagging process in place that allows issues to be reported and rectified during the warranty period. Understanding this process in advance can help provide reassurance and manage expectations.

Don’t Leave ISA Bonuses Until the Last Minute

If you’re planning to use savings held in a Lifetime ISA (LISA) or Help to Buy ISA towards your purchase, it’s important to let your solicitor know as early as possible.

Although these funds can be used towards your deposit, the bonus element is not released instantly and your solicitor will need to follow the relevant provider’s withdrawal process. Leaving this until shortly before completion can create unnecessary delays at a critical stage of the transaction.

Discussing your ISA savings with both your mortgage broker and solicitor early in the process will help ensure the funds are available when required and reduce the risk of last-minute complications.

Completion Day and Getting the Keys

Once the property is complete and ready for occupation, a completion date will be agreed.

On completion day, your solicitor transfers the remaining purchase funds to the developer’s solicitor. Once the funds have been received, ownership transfers to you and the keys can be released.

Before moving in, you’ll usually be given a home demonstration by the sales advisor or site team, who will explain how key features such as heating controls, ventilation systems, appliances and alarms operate.

You’ll also receive important documents, including warranty information, homeowner manuals and details of how to report any issues after moving in.

Enjoying Your New Home

Once the keys have been handed over, you’re ready to move into your new home.

Although the process between reservation and completion can sometimes feel lengthy, understanding each stage helps reduce uncertainty and allows you to focus on the excitement of becoming the first owner of a brand-new property.

For more information, please contact...

Holly Brennan

Holly Brennan

Paralegal

Holly Brennan is a Paralegal in the Commercial Property team at Swinburne Maddison, having joined the firm in August 2025 after graduating with an…

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