Quick answer: typical lease extension costs
Total costs typically range from £8,000 to £25,000+ depending on:
- Your property's value
- Remaining lease length
- Ground rent amount
Here's a breakdown for a typical £300,000 flat with 75 years remaining:
Premium to freeholder: £12,000-£18,000
- Your solicitor: £600-£2,500
- Your surveyor: £500-£1,500
- Freeholder's costs: £1,000-£2,000
- Land Registry: £40
Total: £14,140-£22,040
The single biggest factor affecting cost is whether your lease is above or below 80 years. Below 80 years, you pay "marriage value" which can add £8,000-£15,000+ to your costs.
Worked examples: what you'd actually pay
Example 1: 85 years remaining (no marriage value)
Property: £350,000 flat in Manchester
Remaining lease: 85 years
Ground rent: £100 per year
Premium breakdown:
- Diminution in value: £3,500
- Lost ground rent income: £2,000
- Marriage value: £0 (over 80 years)
- Premium total: £5,500
Professional fees:
- Your surveyor: £800
- Your solicitor: £1,200
- Freeholder's legal costs: £1,200
- Freeholder's surveyor: £600
- Land Registry: £40
- Fees total: £3,840
TOTAL COST: £9,340
Example 2: 75 years remaining (marriage value applies)
Property: £300,000 flat in Birmingham
Remaining lease: 75 years
Ground rent: £150 per year
Premium breakdown:
- Diminution in value: £4,500
- Lost ground rent income: £2,500
- Marriage value (50% split): £9,000
- Premium total: £16,000
Professional fees:
- Your surveyor: £950
- Your solicitor: £1,500
- Freeholder's legal costs: £1,500
- Freeholder's surveyor: £700
- Land Registry: £40
- Fees total: £4,690
TOTAL COST: £20,690
Example 3: 65 years remaining (high marriage value)
Property: £400,000 flat in London
Remaining lease: 65 years
Ground rent: £200 per year
Premium breakdown:
- Diminution in value: £7,000
- Lost ground rent income: £4,000
- Marriage value (50% split): £15,000
- Premium total: £26,000
Professional fees:
- Your surveyor: £1,200
- Your solicitor: £1,800
- Freeholder's legal costs: £1,800
- Freeholder's surveyor: £900
- Land Registry: £40
- Fees total: £5,740
TOTAL COST: £31,740
Key takeaway: Extending at 85 years costs £9,340. Waiting until 65 years costs £31,740. That's a £22,400 difference for the same property.
What affects lease extension costs?
Remaining lease length (biggest factor)
The shorter your lease, the more expensive the extension:
- Above 80 years: No marriage value, lower costs
- Below 80 years: Marriage value kicks in, costs increase significantly
- Below 70 years: Very high marriage value, mortgage difficulties reduce property value further
- Below 60 years: Costs can exceed 20% of property value
Property value
Higher value properties = higher premiums. A £500,000 flat will cost more to extend than a £200,000 flat with the same remaining lease.
Ground rent amount
Higher ground rent = higher lost income for freeholder = higher premium.
Watch for escalation clauses: Some leases have ground rent that doubles every 10-15 years (£100 → £200 → £400). These dramatically increase extension costs.
Property location
London and South East properties typically cost more due to:
- Higher property values
- Higher surveyor fees
- More expensive legal costs
Freeholder cooperation
Cooperative freeholders settle faster and cheaper. Difficult freeholders may require tribunal proceedings, adding £3,000-£5,000 in legal costs.
The premium (the amount you pay the freeholder) has three components:
Diminution in value
This is what the freeholder loses by extending your lease. They're giving up the right to reclaim the property when the lease expires.
Calculated as: the difference between the freehold value with your current lease and the freehold value with the extended lease.
Lost ground rent
The freeholder loses future ground rent income. This is calculated as the present value of all future ground rent payments.
Example: £150 per year ground rent for 75 years = approximately £2,500 in present value terms.
Marriage value (if under 80 years)
This is the increase in your property's value after the lease is extended.
How it works:
- Property with 75-year lease: £280,000
- Same property with extended lease: £300,000
- Increase in value: £20,000
- Marriage value you pay: £10,000 (50% of £20,000)
The freeholder is entitled to 50% of this increase. This is why costs jump dramatically below 80 years.
Marriage value only applies below 80 years. Above 80 years, it's assumed to be zero. This is why extending at 85-90 years saves so much money.
Professional fees breakdown
Fees you must pay
Your surveyor: £500-£1,500
You need a RICS-qualified surveyor to value the premium. Costs vary by:
- Property value (higher value = higher fee)
- Location (London surveyors charge more)
- Complexity (unusual leases cost more to value)
Your solicitor: £600-£2,500
Specialist lease extension solicitors handle:
- Section 42 notice preparation and service
- Negotiations with freeholder
- Legal completion and Land Registry registration
Most firms charge fixed fees. Our fixed fee starts from £600.
Freeholder's legal costs: £1,000-£2,000
Yes, you pay the freeholder's solicitor fees too. These must be "reasonable" - your solicitor will challenge excessive charges.
Freeholder's surveyor: £500-£1,000
You also pay for the freeholder's valuation. Again, this must be "reasonable".
Land Registry fee: £40-£80
Small fee to register the extended lease.
Optional costs
Tribunal fees: £200-£500
If you can't agree on the premium, either party can apply to the First-tier Tribunal. Application fees range from £100-£500.
Barrister fees: £2,000-£5,000+
If your case goes to tribunal, you may need a barrister. Many cases settle before this stage.
Stamp duty (very rare)
Only payable if your premium exceeds £125,000. Calculated at 2% of the premium above £125,000.
How to reduce your lease extension costs
Extend early (biggest saving)
Extending at 85-90 years instead of 70 years can save £10,000-£20,000. Don't wait.
Negotiate before serving Section 42
Try informal negotiation first. If your freeholder is reasonable, you might save on legal costs and complete faster.
Caution: Only do this if the freeholder is known to be cooperative. Otherwise, use the statutory route for protection.
Get multiple surveyor quotes
Surveyor fees vary significantly. Get 2-3 quotes but prioritise experience over price - a good surveyor can save you thousands on the premium.
Challenge unreasonable freeholder costs
Your solicitor will review the freeholder's legal and surveyor costs. Excessive charges can be challenged.
Consider buying the freehold instead
If you're in a block of flats, buying the freehold collectively (collective enfranchisement) might be cheaper long-term. Requires 50%+ of leaseholders to participate.
Use a specialist solicitor
Lease extension specialists negotiate better premiums and spot issues early. A cheaper generalist solicitor could cost you more in the long run.
When should you extend your lease?
Based purely on cost, here's when to act:
- 90+ years: Not urgent, but start planning
- 85-90 years: Ideal time to extend - costs are lowest
- 80-85 years: Extend soon before marriage value applies
- Below 80 years: Extend urgently - every year costs more
- Below 70 years: Emergency - mortgage problems begin
Don't wait for your lease to become a problem. The cost of delaying almost always exceeds the cost of extending early.
What is a lease extension?
A lease extension is the legal process of increasing the years remaining on your leasehold property. It preserves your property's value and makes it easier to sell or remortgage.
Under the statutory route (Section 42), you're entitled to:
- 90 years added to your existing lease
- Ground rent reduced to peppercorn (zero)
- Legal protection throughout the process
If you own a shared ownership property, you can only extend the lease using the statutory route if you've "staircased" to 100% ownership.
However, some housing associations allow lease extensions even if you own less than 100%. Check your lease terms and contact your housing association to confirm their policy.
Get a fixed-fee quote for your lease extension
Our specialist solicitors handle the complete lease extension process with transparent, fixed fees.
What's included in our service
- Section 42 notice preparation and service
- Expert negotiation with your freeholder
- Full legal process management
- Land Registry registration
- Fixed fee from £600 - no hidden costs
Get your quote or call , we would be happy to help!