A property being renovated is a different risk from a property being lived in, and ordinary policies say so. Once a building is unoccupied, or once structural work starts, most standard wordings restrict cover, suspend it or withdraw it entirely, and the owner discovers this at the claim rather than at the quote. Renovation insurance is the cover written for that period, and it has to answer for the building, the works and the people on site at once.
Why the standard policy steps back
Buildings cover is priced for an occupied, weathertight, finished property. Structural alterations, an open roof, a building left empty for weeks and trades coming and going all change that, and wordings deal with it through unoccupancy clauses, restrictions on cover after a stated number of days empty, and exclusions for damage arising from the works. Telling the insurer before work starts is a condition of most policies, not a courtesy.
Who insures the works themselves
The building under alteration and the materials for it are contract works, and the building contract allocates them: to the contractor on some jobs, to the owner on others, particularly on domestic extensions where the owner's renovation policy is expected to carry them. Both allocations are common, and the failure mode is both sides assuming the other holds it. Read the contract's insurance clause before the first delivery.
Liability while the property is a site
A renovation site brings public liability exposure for neighbours, passers by and visiting trades, and where the owner engages labour directly there may be employers' liability duties too. A homeowner using a single main contractor generally relies on the contractor's cover; a homeowner project managing several trades directly is in a different position and should say so when arranging the policy.
The neighbours, and the Act that governs the wall
Work on or near a shared wall, or excavation near a neighbouring building, falls under the Party Wall etc. Act 1996, which sets out notice and procedure. That is not insurance, and it is what determines whether a damage dispute is about the damage or about whether the work should have started. Building regulations approval sits beside it for the same reason: an unapproved alteration is a harder claim.
Questions people ask about renovation insurance
Do I need special insurance for a renovation?
Usually yes. Standard buildings policies restrict or withdraw cover once a property is unoccupied or undergoing structural work, and renovation cover is written for that period. Tell your existing insurer before work starts, because notification is normally a policy condition.
Who insures the building work, the owner or the builder?
The building contract says, and both are common. On domestic extensions the owner's renovation policy is often expected to carry the works; on new builds the contractor usually does. Read the insurance clause rather than assume.
What happens if I do not tell my insurer about the work?
Cover can be restricted or lost for the period, because unoccupancy and alteration clauses are conditions rather than guidance. A claim arising during undeclared works is where this is discovered, and it is entirely avoidable with a phone call.
Does renovation insurance cover the neighbours' property?
Public liability within the policy answers for damage you are legally liable for. Where the work is on or near a shared wall, the Party Wall etc. Act 1996 governs notice and procedure, and following it is what keeps a damage dispute about the damage.