Quick summary
- You may need specialist cover for non-standard construction (thatched, timber frame, flat roof, listed buildings).
- High-value homes often need bespoke limits for buildings, contents and valuables.
- Flood, subsidence, and unoccupied properties can require specialist underwriting and higher excess.
- Accurate property details are crucial; misdescription can affect claims.
- Specialist doesn’t always mean ‘more expensive’ — it can mean ‘better matched’ cover.
Some homes don’t fit ‘standard’ home insurance rules — and that can lead to declined quotes, high premiums, or claims complications if the property details are wrong. Specialist home insurance is designed for non-standard construction, high-value properties, unusual occupancy, or higher-risk locations.
This guide explains when you may need specialist home insurance, what insurers look for, and what to compare.
What counts as ‘non-standard’ and why it matters
“Non-standard” usually means the property doesn’t fit mainstream underwriting assumptions about construction, repair methods, or claims cost. That matters because if the insurer’s assumptions don’t match your home, cover may be restricted or claims could be harder to manage.
Common reasons a home is classed as non-standard:
- Construction type: timber frame, steel frame, cob, wattle and daub, thatch
- Roof type: flat roof above certain proportions, thatch, unusual coverings
- Listed status or conservation area rules affecting materials and methods
- Mixed-use: shop + flat, business use from home beyond typical home office
- Unusual layout: annexes, multi-unit arrangements, non-traditional conversions
What this changes in practice:
- Repairs may require specialist contractors and materials
- Rebuild costs can be higher and take longer
- Insurers may impose higher excesses or more conditions
High-value homes and high-value contents
High-value homes often need:
- Higher buildings sum insured based on rebuild cost (not market value)
- Higher valuables limits and fewer restrictive sub-limits
- Clear cover for jewellery, watches, art, collections, and high-end furnishings
Common pitfalls:
- Single item limits too low (e.g., £1,500 per item)
- Total valuables limits too low
- Items not specified separately, leading to underpayment in a claim
Practical steps:
- Consider valuations for jewellery/art
- Keep receipts, photos, and appraisal documentation
- Check whether worldwide cover applies (and time limits abroad)
Unoccupied properties and second homes
Most standard policies restrict cover if a home is “unoccupied” beyond a set period (often 30 or 60 days). Specialist policies can be more flexible but may require precautions. Check carefully:
- Definition of “unoccupied” (some include “no overnight stays”)
- Required precautions: inspections, water shut-off, heating minimum temperature
- Whether theft cover reduces or stops during unoccupied periods
- Whether renovation work is covered and what must be disclosed
Flood, subsidence, and other higher-risk factors
Flood If you are in a flood-prone area, specialist insurers may price differently, apply higher excesses, or impose conditions. Some properties may be eligible for Flood Re depending on circumstances (eligibility rules apply).
Subsidence Often involves high excess and strict evidence. Policies may require surveys, engineer reports, and can exclude historical movement. Other factors:
- Large trees close to property
- Previous claims history (flood/escape of water/subsidence)
- Coastal exposure and storm frequency
- Large flat roof areas and water ingress risk
What to compare in specialist policies
Specialist cover should be compared on:
- Rebuild basis and inclusion of professional fees (surveyors/architects)
- Trace and access wording for leaks
- Escape of water excess and conditions (especially in winter/unoccupied)
- Listed building approach: specialist repairs, matching materials, contractor networks
- Valuables: single item limits, worldwide cover, specified items requirements
- Unoccupied/renovation clauses: exact requirements and reporting obligations
- Claims handling: how repairs are managed, timelines, and communications
Practical steps to get the right cover
Gather accurate info before quoting:
- Construction type and roof details
- Year built, listed status, conservation area
- Prior claims and repairs
- Any renovations planned or ongoing
- Security systems and locks
To reduce underinsurance risk:
- Use a rebuild calculator or professional rebuild valuation
- Consider separate valuations for high-value items
- Update sums insured after renovations or major purchases
Key takeaways
- Specialist home insurance is for non-standard construction, high-value homes, unusual occupancy, or higher-risk locations.
- Accuracy is critical: wrong construction or occupancy details can affect claims.
- Watch flood/subsidence terms: excess and evidence requirements are often stricter.
- High-value homes need careful limits and valuables cover to avoid underinsurance.
- Compare claims handling and repair approach, not just price.
Frequently asked questions
What is non-standard construction?
Any construction that falls outside common assumptions (for example thatched roofs, timber frame, high flat-roof percentage, listed buildings).
Will a standard insurer cover a listed building?
Some will, but cover can be restricted. Specialist insurers may offer more appropriate repair terms and contractor networks.
Why is the excess higher for flood or subsidence?
These claims can be severe and expensive, and insurers manage risk through higher excess and underwriting controls.
Do I need to disclose renovations?
Yes. Renovations can change risk and may require specific cover. Always tell the insurer if asked or if it changes the risk.
Is specialist home insurance always more expensive?
Not always. It may be more appropriately priced for your risk and can avoid gaps that cause problems at claim time.
Where to go next
- Historic England (external link, opens in new tab)
Anything missing from this guide? Let us know