New build homes should, in theory, be perfect. They're built to current standards, come with warranties, and haven't had decades of wear. In practice, new builds generate more consumer complaints than any other category of housing purchase in the UK. According to successive surveys, the majority of buyers find defects within the first two years of moving in, and a significant proportion report difficulties getting their developer to fix them.
This isn't universal. Plenty of new build purchasers have positive experiences. But the statistics are troubling, and the power asymmetry between a large developer and an individual buyer makes it easy for defect issues to drag on for years. Knowing your rights and how to use them properly changes that dynamic.
Snag Before You Move In
The single most effective thing you can do to protect yourself on a new build is commission a professional snagging survey before you complete. Most developers try to discourage this, or schedule completion in a way that makes it difficult. Don't let them.
A snagging surveyor is a specialist who inspects the property systematically and documents every defect, however minor: poor paintwork, ill-fitting doors, missing or damaged fixtures, incorrect materials, gaps in sealant, issues with drainage, problems with the roof. A typical new build snagging list runs to 100-200 items. Some of those items are cosmetic. Others are serious and would cost thousands to rectify if left unchallenged.
Present the snagging list to the developer before you exchange completion. Developers are more motivated to address defects before you've moved in than after. Insist on a written response to each item and a timeline for rectification. Don't complete until you're satisfied with the response, or at the very least, until the most serious items are agreed for resolution.
The Developer's Defect Liability Period
Under most new build contracts, the developer has a defect liability period (typically one or two years from legal completion) during which they're obliged to repair defects in the construction at no cost to you. This is separate from your warranty rights (which last longer) and from your statutory rights under the Consumer Rights Act.
Keep a running log of defects as they appear. Report them to the developer in writing, not by phone. Phone calls are not records. Emails are. For each defect, state: what it is, where it is, when you first noticed it, and what you'd like done. Keep the response.
If the developer is slow to respond, send a formal letter setting out all outstanding defects, requesting a programme of rectification, and giving a reasonable deadline. If they still don't respond, escalate.
NHBC Buildmark Warranty
Most new homes built by registered developers come with an NHBC Buildmark warranty, which runs for 10 years from legal completion. The warranty has two distinct phases:
Years 1-2 (the builder period). The developer is responsible for putting right any defects that are a breach of NHBC requirements. If the developer fails to do so, you can refer the matter to the NHBC Resolution Service, which can require the developer to carry out the work or award compensation.
Years 3-10 (the NHBC insurance period). For structural and weatherproofing defects that arise in years 3-10, you can claim directly against NHBC insurance. The developer's involvement is less relevant in this phase.
The NHBC warranty is not a general home warranty. It doesn't cover general maintenance, fair wear and tear, damage caused by you, or defects that were apparent before completion and accepted. It covers defects caused by the developer's failure to build to the NHBC's Technical Standards.
Other warranty providers exist alongside NHBC: Premier Guarantee, LABC Warranty, Build-Zone and others. Check which warranty applies to your property and familiarise yourself with its terms before you need to use it.
Register your warranty immediately after completion. Don't assume it's automatically active. Some warranties require registration within a set period. Check the documentation you received at completion and complete any registration steps promptly.
New Homes Quality Code
The New Homes Quality Code (NHQC) came into force in 2022, replacing the Consumer Code for Homebuilders. Developers registered with the New Homes Quality Board (NHQB) are required to provide buyers with a two-year warranty from the developer, a 10-year structural warranty, and access to an independent New Homes Ombudsman Service for dispute resolution.
The Ombudsman can investigate complaints about developer conduct (including failure to respond to defect reports) and can award compensation. They cannot award more than the original purchase price, but for most defect disputes, the amounts involved are well within their jurisdiction.
Not all developers are registered with the NHQB yet. Check whether yours is. If they are, the Ombudsman is a free and relatively accessible route to resolution.
Your Rights Under the Consumer Rights Act
If your developer is a builder/developer who sold you the property, the Consumer Rights Act 2015 applies to the construction work. Services must be performed with reasonable care and skill, using materials of satisfactory quality. Defects in construction quality are potential breaches of these implied terms.
In practice, the CRA gives you a right to have defective work remedied, or to a price reduction if remedy is not done within a reasonable time. It doesn't give you a right to return the property, but it does give you leverage to require rectification and potentially to claim compensation through the courts if the developer refuses.
Escalating When Developers Won't Respond
Developers sometimes simply ignore defect reports, knowing that most buyers will eventually give up. They shouldn't get away with this. When written reminders fail, the next steps are:
Formal letter before action. A letter stating that you intend to bring legal proceedings if the defects aren't remedied within a specified period (usually 14-28 days). Even if you don't intend to litigate immediately, this demonstrates seriousness and often produces a response.
NHBC Resolution Service (or equivalent warranty provider). File a formal complaint with the warranty provider during years 1-2. The NHBC has enforcement mechanisms over its registered developers.
New Homes Ombudsman. If the developer is NHQB registered, a complaint to the Ombudsman is free, independent, and can result in binding decisions.
Small Claims Court. For defects with a value under £10,000, the Small Claims track is accessible without a solicitor. For larger claims, standard county court or specialist solicitor advice is needed.
Trading Standards. If the developer is making misleading statements about their obligations or is acting unconscionably, Trading Standards can investigate and take action.
Document everything throughout. The developer's failure to respond in writing is itself evidence that will support your claim if the matter goes to arbitration or court.