Buying a new build in England or Wales is not the same as buying a second-hand home, and the conveyancing (the legal process of transferring ownership) reflects that. There is…
Buying a new build in England or Wales is not the same as buying a second-hand home, and the conveyancing (the legal process of transferring ownership) reflects that. There is no upward chain to coordinate. Instead, you are dealing directly with a developer and their standard-form contract, which is drafted in the developer's favour and rarely open to significant negotiation. That contract sets the pace of everything that follows.
The most important thing to understand early is the exchange deadline. Developers typically require you to exchange contracts (the point at which the deal becomes legally binding) within a short window after reservation, often 28 days. Miss it, and you can lose your reservation fee and the plot. Lauren Basger, solicitor, notes that these deadlines are where buyers most often come unstuck, particularly when mortgage offers or searches take longer than expected.
New build conveyancing uk work also brings its own layers: structural warranties such as NHBC cover, snagging (identifying defects after completion), and a completion date tied to build progress rather than a fixed calendar date. We cover each of these below, and you can read more about our approach at /services/new-build-conveyancing.
The Developer's Exchange Deadline: The Single Biggest Pitfall
When you reserve a new build plot, the developer's reservation form will usually set a deadline to exchange contracts, commonly 28 days, sometimes as short as 21 or even 14. That clock starts the moment you pay the reservation fee, not when your solicitor receives the contract pack.
Developers enforce these deadlines strictly. Their build programmes, sales targets and forward funding depend on plots exchanging on time, so extensions are far from automatic. If you miss the date, the developer can withdraw the plot, remarket it, and keep some or all of the reservation fee. That money is rarely recoverable.
The pack itself is a large part of the problem. New build contracts run to hundreds of pages: the transfer, plot-specific plans, planning consents, section 106 obligations (planning-related restrictions), estate management arrangements, NHBC or equivalent structural warranty documents, and detailed specification schedules. All of this needs reviewing, raising enquiries on, and reporting to you, alongside your mortgage offer and searches, inside that same window.
Lauren Basger notes that buyers are most often caught out by instructing a conveyancer days after reservation, or choosing a firm without regular new build experience. By then, a meaningful chunk of the deadline has already gone.
Instruct an experienced new build conveyancing UK solicitor at reservation, or ideally before. It is the single most effective step you can take to protect your reservation fee and your plot.
Reviewing the Developer's Contract and Title
When you reserve a new build, the developer sends over a contract pack. This is usually a substantial bundle: the draft contract, the transfer deed, title documents, planning consents, building regulations sign-offs, warranty details, and estate management papers. Your solicitor's job is to work through it carefully and flag anything that could affect you later.
Lauren Basger notes that developer contracts are drafted to protect the developer, not the buyer, so certain clauses need particular attention. These include tight exchange deadlines (often 28 days from reservation), longstop dates (the final date by which the developer must complete the build), and clauses that allow the developer to make design changes. Some points can be negotiated; many cannot, because developers use standard packs across a whole site.
Your solicitor will also examine restrictive covenants (rules limiting what you can do with the property, such as no extensions or no commercial use), any estate rentcharge (an annual sum paid to a management company for shared areas), and the terms of the management company arrangement, including how service charges are calculated and reviewed. On leasehold new builds, ground rent and lease length need close scrutiny.
Planning permission and building regulations checks are specific to new builds. Your solicitor confirms that the correct consents exist for the plot, that conditions attached to the planning permission have been discharged, and that building control sign-off is either in place or will be by completion.
You can read more about our approach on our new build conveyancing page.
Structural Warranties: NHBC Buildmark and Alternatives
When you buy a new build home in England or Wales, it should come with a 10-year structural warranty. NHBC Buildmark is the most common, but LABC Warranty, Premier Guarantee and Checkmate offer similar cover. Lenders usually insist on one of these before agreeing a mortgage on a newly built property.
These warranties do two main jobs. In the first two years, the developer is generally responsible for fixing defects in workmanship and materials. From years three to ten, the warranty provider covers major structural problems, issues with the foundations, load-bearing walls, roof structure and similar. Most policies also protect your deposit if the developer becomes insolvent (goes out of business) before completion.
What they don't cover often surprises buyers. Snagging items, minor cosmetic issues like paint finishes, sticky doors or scuffed skirting, sit outside the warranty and need raising with the developer directly, usually within a set window after moving in. Normal wear and tear, condensation, and problems caused by poor upkeep are also excluded.
Lauren Basger checks the warranty is in place, or formally on offer, before exchange of contracts. Without it, your lender may withdraw and you could be committed to a property you cannot finance. More on this in our new build conveyancing service.
Anticipated Completion, Long-Stop Dates and Notice to Complete
New build contracts rarely commit the developer to a fixed completion date. Instead, they set out three separate timing concepts, and confusing them is one of the most common causes of stress in new build conveyancing UK buyers face.
The anticipated completion window is the developer's estimated period for finishing the plot, often a quarter or a range of months. It is an indication only, not a contractual promise. The long-stop date is the outer deadline (usually 12 to 24 months after exchange) by which the developer must complete, failing which the buyer may have the right to rescind the contract and recover the deposit. The notice to complete is triggered once the property is physically built and the CML certificate (the confirmation your lender requires that the home is finished to a mortgageable standard) has been issued; the buyer then typically has 10 working days to complete.
Lauren Basger notes that buyers frequently expect their solicitor to confirm when they will move in. That is not something a solicitor can commit to. Build programmes slip for reasons ranging from weather to material shortages, and the contract deliberately gives the developer flexibility within the long-stop. Aligning mortgage offers, removals and rental notice periods against the anticipated window, rather than treating it as fixed, is the safer approach.
New build conveyancing
Mortgage Offers, Help to Buy and Shared Ownership Considerations
Mortgage offers usually last between three and six months, though the exact validity depends on the lender. That window can feel generous until a build programme slips. If the developer pushes back the anticipated completion, and the property isn't ready before your offer expires, you may need to re-apply. Rates might have changed, your circumstances will be reassessed, and the new offer could look quite different from the first.
Some lenders take a stricter view on new builds, applying tighter loan-to-value caps or refusing extensions beyond a set point. Lauren Basger flags this early in the new build conveyancing process, because knowing your lender's specific new build policy shapes how exchange deadlines are negotiated.
Shared ownership adds another layer. You'll be dealing with a housing provider's lease, staircasing provisions (buying further shares later), and rent alongside the mortgage, all of which the lender must be satisfied with. Help to Buy Equity Loan is closed to new applicants in England, but if you're purchasing with an existing scheme reservation or an equivalent regional product, the administrator's requirements sit on top of the lender's. Figures, thresholds and scheme rules change, so current details should be verified before you commit.
Snagging Inspections and Practical Buyer Concerns Before Completion
Once the developer serves notice to complete, you usually have around 10 working days to finalise everything. Many buyers use this window to arrange a professional snagging inspection, an independent survey that identifies defects, from cosmetic finishes to more substantive issues with plumbing, electrics or plasterwork. The inspector produces a report you can share with the developer.
What you can realistically insist on before completion is narrower than most buyers expect. Structural or safety-related defects, and anything that stops the property being reasonably habitable, should be addressed. Cosmetic snags, paint marks, minor scuffs, uneven grouting, are typically logged and dealt with after you move in, not held up as reasons to delay. Lauren Basger points out that buyers sometimes assume they can refuse completion over minor items, which risks breaching the contract and losing the deposit.
This is where the NHBC warranty (or equivalent, such as LABC or Premier) matters. It generally covers defects for the first two years and structural issues for a further eight, so post-completion snags have a route to resolution.
Costs on the conveyancing side tend to reflect the complexity of the developer's paperwork rather than the property price. See our new build conveyancing service for how we approach this.
Next Step: Speak to a New Build Conveyancing Specialist
Developer reservation agreements in England and Wales typically set a tight exchange window, often 28 days from reservation. Miss it, and you risk losing your reservation fee or the plot itself. Lauren Basger regularly sees buyers underestimate how quickly that clock moves, particularly when mortgage offers, searches, and contract enquiries all need to land inside the same short period.
Instructing a conveyancer early is the single most practical thing you can do. It gives time to review the developer's contract, raise enquiries on the NHBC warranty (the 10-year new home cover), clarify snagging provisions (fixing defects after completion), and work through any Help to Buy or shared ownership paperwork, rates and thresholds for schemes like SDLT change, so figures must be verified at the time.
If you've just reserved, or you're about to, arrange a quote through our new build conveyancing service before the reservation clock runs down.
Disclaimer: This article provides general information only and does not constitute legal advice on any individual circumstances.