Block of Flats Building Insurance: How Cover for a Whole Building Works
How buildings insurance for a block of flats is arranged, what the single policy covers, and why blocks are underwritten differently from individual homes.
Block of Flats · 7 August 2026 · 8 min read
A block of flats is insured as one building under one policy, not as a collection of separate homes. That single fact explains most of the differences between block insurance and ordinary household buildings cover.
This article sets out how a block policy is structured, who holds it, and what the market usually asks about before quoting.
One Building, One Policy
Because the structure, roof and communal areas are shared, insuring flats individually would leave gaps and overlaps at exactly the points where claims tend to happen — escape of water between floors, roof damage, or an injury in a shared stairwell.
So the whole building is insured under a single policy, usually in the name of:
- The freeholder, or
- A residents' management company (RMC) named in the leases, or
- A Right to Manage (RTM) company set up by the leaseholders, or
- The leaseholders jointly, where they have bought the freehold
Our guide on who insures a block of flats explains how to identify which of these applies to a particular building.
What a Block Policy Typically Covers
Cover varies by insurer, but a block of flats buildings policy commonly includes:
- Buildings cover for the structure of every flat and the shared parts
- Communal areas including halls, stairs, lifts, boiler rooms, bin stores, gardens and boundary walls
- Property owners' liability for injury or damage claims brought by residents, visitors or contractors
- Loss of rent and alternative accommodation following an insured event
- Optional covers such as terrorism, engineering inspection, legal expenses and directors' and officers' liability for the management company
Contents inside each flat remain the responsibility of the individual leaseholder or their tenant.
Why Blocks Are Underwritten Individually
Two blocks on the same street can be priced very differently. Insurers look at features that simply do not arise on a standard house:
- Construction and conversion history — a Victorian house converted into six flats behaves differently in a fire from a purpose-built block. See converted vs purpose-built flats.
- Height and access — buildings above certain heights attract extra fire safety scrutiny
- External wall systems — cladding and balcony materials, and whether an assessment has been carried out
- Occupancy mix — owner-occupiers, private tenants, students, short lets, social housing or vacant units
- Commercial units — the trade below the flats affects the whole building's risk
- Claims history — escape of water is the single most common block claim
Getting the Rebuild Figure Right
The declared sum insured should reflect the cost of rebuilding the entire block, including demolition, debris removal, professional fees and compliance with current building regulations. It is not the combined market value of the flats.
Many blocks have a reinstatement cost assessment carried out by a surveyor and then index-linked, with a fresh assessment every few years. Our guide to block of flats rebuild cost covers the ground in more detail.
How the Cost Is Shared
The person or company that holds the policy pays the premium and then recovers it from leaseholders through the service charge, in the proportions set out in the leases. Leaseholders are generally entitled to ask for a summary of the insurance cover.
What You Will Be Asked
Whoever is arranging cover is usually asked for:
- Full postal address and number of flats
- Construction type, roof type and year built
- Declared rebuild value and the date it was assessed
- Occupancy of each flat
- Fire safety and alarm arrangements
- Any cladding or external wall assessment
- Three to five years of claims history
- Details of any commercial units
Making an Enquiry
Landlord Quote is a lead generation business, not a broker. We take the details of your block and, where the enquiry matches, share them with an FCA regulated broker who specialises in block of flats insurance. They contact you directly.
You can start on the block of flats insurance page or read the full blocks of flats insurance guide.
Beyond Leads Ltd T/A Landlord Quote is an FCA authorised lead generation business. We do not give advice, arrange cover or quote premiums. If your enquiry is matched, your details are shared with an FCA regulated broker who specialises in this sector.
Beyond Leads Ltd T/A Landlord Quote (FCA FRN 940006) is an FCA authorised lead generation business. We do not provide insurance advice, recommend policies, arrange cover or quote premiums. This page is general information only. If your enquiry is matched, your details are shared with an FCA authorised specialist broker who will discuss cover and pricing with you directly.