New build home survey
New build home survey
An independent condition survey of a newly built home: what a warranty does and does not cover, and why new does not mean defect-free.
Last reviewed 31 August 2026
Do you need a survey on a new build?
A new build home survey is an independent RICS-standard inspection of a recently completed property. A warranty covers defined defects for defined periods and is not a statement that the house was built correctly. A survey reports condition in the surveyor's own terms, records what falls short, and gives you evidence to use with the developer while your position is strongest.
At a glance
- Usual level
- Level 1 or 2 for conventional new homes in apparently reasonable condition.
- Warranty
- Covers defined defects for defined periods; it is not a quality guarantee.
- Difference from snagging
- Condition reporting rather than a defect schedule against build standards.
- Best time
- Before completion where access allows, otherwise early in the warranty period.
Why new homes still need independent eyes
Building control and warranty inspections are sampled, not exhaustive. They do not visit every plot at every stage, and they are not acting for you. The result is that finished houses routinely contain workmanship failures that nobody has looked at with your interests in mind.
An independent survey is the first inspection of the property carried out for the buyer. That is the whole point of it.
- Loft insulation, ventilation and completed fire-stopping where visible
- Roof coverings, flashings and rainwater goods
- External ground levels, drainage and finished landscaping
- Evidence of incomplete or remedial work across the plot
Survey or snagging — or both
A snagging inspection measures finished work against build and warranty standards and produces a schedule for the developer. A survey reports the condition of the building under the RICS Home Survey Standard and speaks to you about risk.
For a plot bought off-plan and completing shortly, snagging usually comes first. For a two- or three-year-old home being resold, a survey is the right instruction, because the developer relationship has already changed.
What the warranty actually gives you
Warranty cover is typically split: an initial period during which the developer is responsible for putting defects right, followed by a longer period of structural cover with a narrower definition of what qualifies.
Read the policy for the specific warranty on your plot. What is covered, what is excluded and what the claim thresholds are vary between providers, and assumptions carried over from someone else's experience are frequently wrong.
Which new-home instruction fits
Both services are useful; they answer different questions.
| Situation | Instruction | Why |
|---|---|---|
| Completing on a brand-new plot | Snagging survey | Defect schedule the developer can action immediately |
| Recently completed home, first year | Both | Schedule for the developer plus independent condition advice |
| Resale of a two to five year old home | Level 2 survey | Developer relationship has ended; condition is what matters |
| Concerns about structure or movement | Level 3 survey | Deeper reporting and defect reasoning |
Who this is for
A good fit if
- Buyers completing on a newly built house or apartment
- Buyers of homes a few years old, bought from the first owner
- Owners preparing a warranty claim who want independent documentation
Not the right choice if
- Anyone needing a valuation without commissioning one
- Warranty claim handling or legal representation
- Structural design or calculations
Choosing between the two services
Three questions that settle it.
1.Has the developer handed over yet?
Pre-handover, a snagging schedule carries most weight. Post-handover, a survey adds independent condition evidence.
Snagging survey2.Is the house still in its initial warranty period?
If so, act now: the developer's direct responsibility for defects is time-limited.
New build surveys hub3.Are there signs of movement or water ingress?
Those move the instruction up to a Level 3 rather than a general condition report.
Level 3 in detail
When to bring in a specialist
- Electrical installations, gas, drainage and fire safety: instruct the relevant competent professional for testing and certification.
- Movement requiring calculations, monitoring design or remedial design: instruct a structural engineer.
- Warranty claims and developer disputes: your conveyancer and the warranty provider.
Common questions
Limitations and sources
- Any survey is limited to what the surveyor can see and safely reach on the day. Areas behind finishes, under floors or beneath stored belongings are not opened up.
- A survey does not adjudicate a warranty claim or bind the developer or warranty provider.
- A condition survey does not include a market valuation. A formal Red Book valuation must be carried out by an appropriately qualified RICS Registered Valuer.
- Nothing on this page is a professional opinion about a specific property. KJ Surveyors has not inspected your building, and general guidance cannot replace an inspection and report.
Source: RICS · checked August 2026
Source: NHBC · checked August 2026
Source: UK Government · checked August 2026
Last reviewed 31 August 2026.
Where to go next
- snagging surveys — the defect schedule your developer works from.
- the new build hub — every new-home service in one place.
- Level 2 — the usual level for a conventional recent home.
Just bought a new home?
Tell KJ the plot, the warranty provider and your completion date. KJ will explain whether a survey, a snagging inspection or both is the right move.
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KJ gives general guidance only and has not inspected your property. A professional opinion follows an inspection by a surveyor.