Is snagging worth it if the developer has its own inspection?

The developer's check confirms the house meets its own handover standard. An independent inspection is instructed by you and reports to you, which is a different relationship and usually a longer list.

How many items is a normal snagging list?

It varies enormously by plot and site. The number matters far less than whether the significant items — water ingress, drainage, fire stopping, heating performance — have been identified and recorded in time.

Can I snag after I have moved in?

Yes, and many defects only appear once the heating has run through a winter. Check the notification deadlines in your warranty documents so items are reported inside the relevant period.

Do I still need a mortgage valuation?

Your lender will arrange its own valuation for its own purposes. It is not an inspection of workmanship and will not produce a defect schedule.

New build inspection and snagging survey

New build surveys: catching defects while someone else still has to fix them

Snagging lists, pre-completion inspections and warranty-stage checks on a new home: what each one covers and when to book it.

Ask KJ which survey you need 01706 318200

Last reviewed 31 August 2026

Do I need a survey on a brand new house?

A new home still benefits from an independent inspection. A snagging inspection records finishing and workmanship defects against the developer's own obligations, ideally before you complete or early in the warranty period. It is a quality-control exercise, not a condition survey of an ageing building, and it works best when the list is submitted while the developer is still on site.

At a glance

Best timing: Pre-completion, then again before the end of the first warranty period.
What it produces: A room-by-room defect schedule with photographs, written for the developer to act on.
Who fixes the items: The developer, under the build contract and warranty terms — not you.
Not covered: Hidden structure, buried services and anything behind a finished surface.

Snagging is a different exercise from a condition survey

A condition survey on an older property is about deterioration: what has failed, what is failing and what it means for you. A new build inspection is about workmanship and completion: what has been left unfinished, fitted badly, damaged during construction or built away from the specification.

That difference changes how the report is written. A snagging list is deliberately itemised and photographic, because it is a working document handed to a site manager, not a narrative for a buyer.

The three moments that matter

Most disputes about new build defects come down to timing. There are three points where an inspection carries real weight.

Pre-completion, while you still have commercial leverage and the site team is present.
Within the first weeks of occupation, when shrinkage cracking, door alignment and heating balance become obvious.
Before the end of the initial developer-liability period under the warranty, which is typically shorter than the structural cover.

What a warranty actually covers

A new home warranty is not a maintenance contract. The early period usually covers defects that are the developer's responsibility, and the later years typically cover structural elements only, subject to the policy wording.

Read the policy you have been issued rather than a general description of it. Cover, exclusions, notification deadlines and dispute routes differ between providers, and a defect notified late can fall outside cover even when it is genuine.

When a new build needs more than snagging

Occasionally an inspection turns up something outside the scope of a snagging list — significant cracking, evidence of movement, water ingress at a junction, or a departure from the approved drawings.

At that point the right response is a specific instruction: a Level 3 building survey, a structural engineer, or a specialist report on the element in question. A snagging schedule is not the vehicle for a structural opinion.

Who this is for

A good fit if

Buyers approaching legal completion on a new home
Owners in the first two years of a new build warranty
Buy-to-let purchasers taking on a plot from a developer
Shared ownership buyers who want an independent record of condition

Not the right choice if

Older properties, where a Level 2 or Level 3 survey is the right instruction
Structural design questions, which need a structural engineer
Valuation for a lender, which is a separate instruction to a registered valuer

New build inspections

Choose by where you are in the purchase and warranty timeline.

Pre-completion inspection

Independent check before you exchange keys and lose leverage.

New build snagging survey

Room-by-room defect schedule written for the developer to work from.

Thermal imaging survey

Finds missing insulation and cold bridging that a visual check cannot.

Level 3 building survey

Detailed condition reporting where a plot shows more than finishing defects.

Crack and movement survey

Assessment of cracking that goes beyond normal drying shrinkage.

Drainage CCTV survey

Construction debris in new drainage runs is a common and expensive find.

How to use a new build inspection well

The list only works if it lands in the right hands at the right time.

1.Book before completion where the developer allows it
Access arrangements vary by developer. Ask early; a refused pre-completion visit is worth knowing about in advance.
Pre-completion inspection
2.Submit the schedule in writing
Email the report to the developer and your conveyancer, and keep the dated record.
3.Re-inspect the items marked as fixed
A closing visit prevents 'signed off' items reappearing after the liability period ends.
4.Escalate through the warranty provider if items stall
Each provider has a resolution process with its own deadlines. Use it before the period expires.

When to bring in a specialist

Structural cracking or suspected movement — a structural engineer
Electrical installation concerns — a registered electrician for testing and certification
Gas and heating commissioning — a Gas Safe registered engineer
Fire stopping and compartmentation in flats — a competent fire safety specialist

Common questions

Limitations and sources

An inspection is visual and non-intrusive. Concealed structure, buried drainage and work behind finished surfaces are not examined.
A snagging schedule records defects against normal expectations of workmanship; it does not determine contractual liability, which is a matter for your contract and warranty.
Whether an item is accepted depends on the developer's own tolerances and the warranty provider's standards, not on the inspector's preference.

Source: RICS · checked August 2026

Source: UK Government · checked August 2026

Last reviewed 31 August 2026.

Where to go next

compare the RICS survey levels — Useful if the plot is a conversion or the purchase is not a straightforward new build.
what inspections cost — Fee ranges and what moves them, with the date and area they apply to.
a specific defect you have spotted — Symptom-led routing to the right inspection when snagging is not the answer.

Ask KJ about your plot

Give the development, plot type and your completion date, and KJ can work out which inspection to book and when.

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