Why Every New Build Buyer Needs a Snagging Survey

Buying a brand new home should feel exciting — and it often does. But here's the thing: new builds in the UK are notoriously prone to defects. Industry data shows that over 90% of new build buyers report defects within the first two years of ownership. And that's with an NHBC Buildmark warranty in place.

I've been carrying out snagging surveys on new build properties across Barnet and North London for several years now, and I am yet to inspect a new home that has zero snags. The average is somewhere between 60 and 130 items per property. The record I personally hold was a 3-bedroom house in Colindale with 247 issues — including a boiler that hadn't been commissioned and a staircase with a missing handrail.

What is a Snagging Survey?

A snagging survey (sometimes called a snag list inspection or new build inspection) is a thorough check of a newly built property carried out by an independent professional surveyor. The purpose is to identify any defects, incomplete work or poor-quality finishes — collectively known as snags — before or shortly after you move in.

The resulting snag report gives you a clear, documented list of issues that the developer should fix at their own expense, either under the terms of your contract or under the NHBC warranty. Without a professional survey, you're relying on the developer's own snagging team — who have an obvious incentive to minimise the list.

Why Can't I Just Do My Own Snagging?

You can — and doing your own walk-through is always a good idea. But there's a limit to what an untrained eye will spot. A professional surveyor knows what to look for and where to look. We check things like:

• Whether the roof structure has been built to the structural engineer's specification
• Whether fire stopping has been correctly installed in party walls and floors
• Whether drainage falls are correct (a seemingly minor issue that causes ongoing problems)
• Whether the boiler, heating and hot water systems have been correctly commissioned
• Whether electrical circuits are correctly labelled and protected
• Whether cavity wall insulation has been properly fitted

None of these are things you'd easily spot on a walk-around. But all of them can be expensive to fix after the developer's warranty expires.

When Should I Book a Snagging Survey?

There are two optimal times for a snagging survey:

1. Before legal completion — ideally in the week before your completion date. This is the best time, as you can include the snag list as a condition of completion or insist on fixes before you move in. However, some developers won't grant access before completion.
2. Shortly after moving in — ideally within the first few months. You have two years from completion to report defects to your developer under the NHBC warranty (for structural defects, the cover is 10 years). Don't wait too long.

Real Story: 47 Snags in Mill Hill

One of our recent clients, Anita, bought a new build house in Mill Hill. Her developer had told her the property had been "fully snagged and signed off." We carried out our snagging survey and found 47 issues — ranging from poorly fitted skirting boards and uneven floor tiles (minor but annoying) to a bathroom extractor fan that vented into the ceiling void rather than outside (potentially serious damp issue).

Anita presented the snag report to the developer. Every single item was fixed within six weeks — at no cost to her. Without the survey, the bathroom defect alone might have taken years to manifest as a serious damp problem, at a repair cost well into the thousands.

How Much Does a Snagging Survey Cost?

Our snagging surveys start from £300 + VAT. The exact cost depends on the size and type of property. For a two-bedroom flat, expect to pay around £300–£400. For a four-bedroom house, expect £450–£600.

When you consider the average cost of fixing snags that a developer hasn't addressed (typically £1,000–£10,000+ depending on the severity), a snagging survey is an exceptional return on investment.

Frequently Asked Questions