Independent guidance · Comparison guides
Refurbishment Survey vs Demolition Survey
Both are intrusive HSG264 surveys, but the scope, intrusion, cost and legal trigger are different. A side-by-side UK comparison with recommended scenarios.
Key takeaways
- Kitchen or bathroom refit in a 1960s house → Refurbishment Survey of the affected rooms only
- Office fit-out over a single floor in a 1980s block → Refurbishment Survey of the demised floor
- Rewiring across a whole tenanted flat → Refurbishment Survey of every socket, switch and rise
- School classroom block being demolished for a new build → Demolition Survey of the block
- 1970s industrial unit being taken down for redevelopment → Demolition Survey of the whole footprint
Under HSG264 the intrusive survey is one document — the Refurbishment & Demolition Survey — but it is scoped very differently for a kitchen refit than for a whole-building demolition. This guide breaks the two variants apart, compares them side-by-side, and tells you which applies to your project.
Interactive decision tree
Answer 2–3 questions to get a specific survey recommendation.
Question 1
Is the entire structure being taken down?
Head-to-head comparison
The table below summarises the two variants against the criteria dutyholders actually decide on: legal trigger, scope, intrusion, typical UK cost, timing and who is at risk if it is wrong.
| Criterion | Refurbishment Survey | Demolition Survey |
|---|---|---|
| Legal trigger | Any disturbance of pre-2000 fabric | Full or partial demolition of any pre-2000 structure |
| Scope | Only the areas affected by works | Entire demolition envelope — every m² |
| Intrusion | Targeted — sockets, wall build-ups, ceiling voids in-scope | Total — walls opened, floors lifted, all voids accessed |
| Typical UK cost (2026) | £450–£1,800 per project area | £1,200–£6,500 for a mid-size building |
| Turnaround | 1–3 working days on site | 2–7 working days on site + reinstatement |
| Sample count | 8–25 samples typical | 40–200+ samples typical |
| Reinstatement liability | Client makes good on opened areas | Not required — building is coming down |
| Whose risk if wrong | Principal contractor + designer | Principal contractor + demolition contractor + client |
What this means
Refurb = targeted intrusion on the works area. Demolition = full intrusion on the whole structure. Never treat them as interchangeable.
Refurbishment Survey — pros and cons
Best when only part of the building is being altered — kitchen or bathroom refit, plant replacement, partition rework, floor recovering, window replacement, small extension tie-in.
Pros
- Lower cost — scoped to the area of works only
- Faster on site — usually a single day for a domestic refit
- Less disruption to occupied parts of the building
- Sample count matches what the contractor will actually disturb
Cons
- Any change of scope after the survey requires a re-survey of the new area
- Client must make good the opened-up areas after the survey
- Does not cover fabric outside the works envelope — a later phase needs its own survey
Demolition Survey — pros and cons
Required for any full demolition of a pre-2000 structure and for major structural strip-outs where the contractor will access every void.
Pros
- Covers 100% of the structure — no assumption items left in the report
- No reinstatement is needed — the building is being removed
- Sample count is high enough to give a defensible waste classification
- One document supports the entire soft-strip and demolition programme
Cons
- Highest-cost survey variant on the market
- Longer on-site time — access equipment, working at height, live services isolation
- Must be commissioned before any soft-strip begins — late instruction delays the programme
- Cannot be scoped down to save cost without compromising the CDM duty
Recommended scenarios
Match the survey to the works, not the other way round. The examples below reflect actual UK project types we see week-in, week-out.
- •Kitchen or bathroom refit in a 1960s house → Refurbishment Survey of the affected rooms only
- •Office fit-out over a single floor in a 1980s block → Refurbishment Survey of the demised floor
- •Rewiring across a whole tenanted flat → Refurbishment Survey of every socket, switch and rise
- •School classroom block being demolished for a new build → Demolition Survey of the block
- •1970s industrial unit being taken down for redevelopment → Demolition Survey of the whole footprint
- •Phased major refurbishment of a hospital wing → Refurbishment Survey per phase, rolled up under a live Management Survey for the wider estate
What this means
If the building is coming down, it is a Demolition Survey. If it is being altered but staying up, it is a Refurbishment Survey.
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Recommended next step
In practice, the choice above turns on the facts of your building and the works. If you'd rather have an independent consultant confirm the recommendation in writing, request a fixed-price R&D Survey quote. The commonest recommendation is a targeted Refurbishment Survey; upgrade to Demolition Survey only where the full structure is coming down. Elements Surveying Group is UKAS 17025 accredited, does not own a removal arm and does not take referral fees — the recommendation is evidence-led, not commercial.
- •Request a fixed-price R&D Survey quote — one working day turnaround
- •Speak to a senior consultant on 0208 036 1099 (Mon–Fri, 8am–6pm)
- •Independent, UKAS-accredited, conflict-free — no removal arm, no referral fees
What this means
If the comparison still leaves doubt, request a quote — the enquiry costs nothing and puts the decision in writing from an independent, accredited consultancy.
Frequently asked questions
Is a Demolition Survey more expensive than a Refurbishment Survey?
Yes — typically 2–4x more, because the entire structure is intrusively investigated rather than just the works area.
Can one survey cover both?
Yes — a full R&D Survey with demolition scope covers refurbishment by definition. It is not cost-efficient to over-scope, so we usually recommend scoping to the actual works.
Who is legally responsible for commissioning?
The client under CDM 2015 — passed in practice to the principal contractor or the party procuring the works. See our duty-to-manage guide for detail.
Can I reuse a Management Survey for refurbishment?
No. A Management Survey is non-intrusive and does not satisfy CAR 2012 Regulation 5. Refurbishment/demolition works always require the intrusive variant.
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