RANKITT
Start Free Trial
Free Extend vs. Move Calculator

Should You Extend or Move?

Moving house comes with hidden costs that most people underestimate. Use our calculator to compare the true cost of extending your current home against the full expense of moving to a bigger property.

Adjust the sliders to match your situation. Results update in real time.

Your Details

Tell Us About Your Property

---
£150K£2M
25 m²
10 m²100 m²
Option A
Extend
Rear Extension (25 m²)---
Planning & Building Regs£3,000
Architect / Design£4,000
Total to Extend---
Option B
Move
Stamp Duty (on ---)---
Estate Agent Fees (1.5%)---
Solicitor / Conveyancing£2,500
Survey£600
Removals£1,500
Mortgage Arrangement£1,000
Total to Move---
Benefits of Extending

Why Most Homeowners Choose to Extend

Add Property Value
A well-designed extension typically adds 1.5x its cost in property value. It is an investment, not just an expense.
No Chain, No Stress
Skip the estate agents, viewings, gazumping, and months of uncertainty. Stay in the home you love.
Bespoke to You
Design exactly the space you need — open-plan kitchen, home office, extra bedroom — tailored to your family.
Ready to Extend?

Get Your Free Extension Quote

We have been building extensions across London and the South East for over 20 years. FMB and TrustMark accredited. Get a no-obligation estimate for your project.

Get a Free Quote Start Free Trial
FMB Member
TrustMark
Checkatrade
20+ Years
RCB Design & Build | A2Z Principal Contractors
HomeFree QuotePricingSign InPrivacy PolicyTerms