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High-Rise Flat Mortgage: Over 6 Storeys

High-rise living is increasingly popular in UK cities, from luxury developments in Manchester and Birmingham to the towers lining the Thames. But getting a mortgage on a flat in a building over six storeys comes with specific challenges — some related to the building itself, some to the post-Grenfell regulatory landscape.

What Counts as High-Rise?
There is no single definition, but in the context of building safety and mortgages:
- Over 11 metres (roughly 5 storeys): Subject to some building safety requirements
- Over 18 metres (roughly 7 storeys): Subject to more stringent requirements under the Building Safety Act 2022, including registration with the Building Safety Regulator
- Over 30 metres (roughly 10 storeys): Classified as "higher-risk buildings" with the most comprehensive safety requirements
For mortgage purposes, the 18-metre threshold is the most significant, as this is where EWS1 and building safety requirements are most consistently applied.
The Cladding and Fire Safety Issue
Since the Grenfell Tower tragedy in 2017, fire safety in high-rise buildings has been under intense scrutiny. For mortgage applicants, the key question is: does the building have an up-to-date fire safety assessment, and is the external wall system safe?
This is covered in detail in our cladding and EWS1 article, but the essentials for high-rise buyers are:
- You need an EWS1 form (or equivalent documentation) showing the building's external walls are safe
- A B1 rating (remediation needed) will make it very difficult to get a mortgage
- A clear rating (A1, A2, or A3) means most lenders will proceed normally
- No EWS1 at all can be as problematic as a bad rating
Do not assume a new building is fine
Some relatively new high-rise developments (built in the 2010s) have been found to have cladding issues. The age of the building does not guarantee safety compliance. Always check the EWS1 status regardless of when the building was constructed.
Service Charges: The Hidden Factor
High-rise buildings have higher running costs than low-rise properties, and these are passed to leaseholders through service charges. Typical costs include:
- Lift maintenance and insurance
- Concierge or security (in some buildings)
- Window cleaning (often specialist at height)
- Fire safety systems (sprinklers, alarms, dry risers)
- Building insurance (higher for taller buildings)
- Communal heating systems (in some developments)
- Building management fees
Service charges in high-rise buildings can range from £2,000 to £8,000+ per year, depending on the building's facilities and location. Luxury developments with gyms, pools, and concierge services can be even higher.
Lenders factor service charges into affordability. A £4,000 annual service charge reduces your borrowing capacity by the same amount as £4,000 of existing debt. This can significantly affect how much you can borrow.
Check the service charge history
Ask for the last 3-5 years of service charge accounts. Look for trends — are charges increasing? Has there been a large one-off levy (often called a "section 20" charge) for major works? What is the building's reserve fund like? A well-managed building with healthy reserves is less likely to spring nasty surprises.
Which Lenders Accept High-Rise Flats?
Most mainstream lenders will consider high-rise flats, provided the building safety documentation is in order:
- Halifax — accepts high-rise with satisfactory EWS1
- Nationwide — will consider subject to building safety evidence
- NatWest — lends on high-rise with appropriate documentation
- Barclays — accepts high-rise flats
- Santander — will consider with satisfactory fire safety
- Specialist lenders — for buildings with more complex situations
Some lenders have specific policies about floor level, deck access, or the total number of storeys. A broker can match your specific building to the right lender.
Ex-Council vs Private High-Rise
Private Developments
Modern private high-rise developments are generally straightforward to mortgage if the building safety documentation is clear. They tend to have:
- Professional management companies
- Clear service charge structures
- Better-maintained common areas
- Higher property values and stronger resale markets
Ex-Council Tower Blocks
Council-built tower blocks present additional considerations:
- Construction type — many were built using non-standard methods (concrete panel, etc.)
- Cladding issues — some councils were slower to address cladding concerns
- Management quality — varies significantly between local authorities and housing associations
- Service charges — can be lower than private developments but may come with less comprehensive services
- Resale market — typically weaker than private equivalents
Many ex-council tower block flats are mortgageable, but the combination of non-standard construction and high-rise can narrow lender options considerably.
Surveys and Documentation
When buying a high-rise flat, you (and your lender) will need:
- EWS1 form or fire safety certificate — essential for buildings over 18 metres
- Service charge accounts — last 3 years minimum
- Building insurance certificate — confirming adequate cover
- Lease details — length, ground rent, service charge provisions
- Management company information — who manages the building and their track record
- Building safety case — for buildings registered with the Building Safety Regulator
Your solicitor should obtain most of these through the conveyancing process, but it is worth asking early to avoid delays.
Typical Extra Costs
Compared to buying a house or low-rise flat:
- Higher service charges: £2,000-8,000+ per year
- Ground rent: Check the terms carefully (should be peppercorn on new leases)
- Building insurance: Covered through service charge but reflected in the amount
- EWS1 assessment: If not already in place, the building may need to commission one (cost shared among leaseholders)
- Specialist survey: If the lender requires additional fire safety evidence
Practical Advice
- Check the EWS1 status before making an offer — this is the single most important step
- Review the service charge accounts and budget — understand the true ongoing cost
- Ask about planned major works — roof repairs, lift replacement, or facade works can result in huge one-off charges
- Check the lease length — ensure it meets lender requirements (70+ years at end of mortgage term)
- Visit at different times — noise, light, and wind exposure vary by floor and time of day
- Consider resale — high-rise flats can be slower to sell than houses; factor this into your long-term plans
- Check internet and mobile signal — surprisingly variable in high-rise buildings
- Understand the building's management structure — who makes decisions, and how responsive are they?
The Future of High-Rise
The Building Safety Act 2022 is creating a more regulated environment for high-rise buildings. Over time, this should increase buyer and lender confidence as buildings demonstrate compliance with safety standards. The initial disruption caused by the cladding crisis is gradually resolving, and high-rise living remains a viable and popular option in UK cities.
This is educational content, not financial advice. Your situation is unique — speak to a qualified mortgage broker before making any decisions.
Related reading
Cladding and EWS1: Can You Still Get a Mortgage?
How cladding and EWS1 forms affect UK mortgages. Understand the current rules for buildings over and under 18 metres, lender requirements, and your options.
Property TypesMortgage on a Flat Above a Shop
Can you get a mortgage on a flat above a shop in the UK? Yes, but lender criteria vary by shop type, access, and commercial element. Here's what to know.
Property TypesEx-Council House Mortgage: What Lenders Think
Getting a mortgage on an ex-council house in the UK. Learn why some lenders hesitate, which construction types cause issues, and how to find flexible lenders.
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