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Granny Annexe vs Care Home: A Cost Comparison

10 January 20246 min read

When a parent or family member needs care, many families face a difficult choice: pay for residential care or create a space at home. The financial difference is staggering. Let's look at the real costs.

Care Home Costs

The average cost of residential care in the UK varies by region, but the numbers are eye-opening:

  • Average care home cost: £40,000-£60,000 per year
  • In London and South East: £50,000-£80,000 per year
  • Nursing care (higher needs): £60,000-£100,000+ per year
  • These costs typically increase 3-5% annually

Granny Annexe Costs

Compare this to a one-time investment in a granny annexe:

  • Studio annexe: £90,000
  • One bedroom annexe: £110,000
  • Two bedroom annexe: £130,000
  • Zero VAT under Caravan Act (20% saving included)
  • 10-year guarantee included

The 2-Year Payback

Let's compare a £110,000 one-bedroom annexe versus a £55,000/year care home:

  • Year 1: Care home costs £55,000 | Annexe paid off
  • Year 2: Care home costs £55,000 | You break even
  • Year 3 onwards: You save £55,000 every year
  • Over 5 years: Care home costs £275,000+ | Annexe still £110,000
  • Over 10 years: Care home costs £550,000+ | Annexe still £110,000

Hidden Benefits You Can't Put a Price On

Beyond the numbers, there are benefits no care home can provide:

  • Family stays together, daily contact and connection
  • Independence and dignity for your loved one
  • Familiar surroundings and routines
  • Grandchildren can visit anytime
  • Home-cooked meals and personal care
  • Pet companionship (most care homes don't allow pets)

Additional Financial Benefits

A granny annexe can also provide unexpected financial advantages:

  • Property value increase (quality annexe adds value)
  • Rental income potential if not needed long-term
  • Multi-generational living (adult children can use it)
  • Home office or guest accommodation
  • Inheritance planning (asset stays in family)

What About Ongoing Costs?

Yes, there are running costs for an annexe, but they're minimal compared to care fees:

  • Utilities: £1,500-£2,500 per year
  • Maintenance: Minimal with our 10-year guarantee
  • Council tax: Often exempt if occupied by family
  • Total annual cost: £2,000-£3,000 versus £50,000+ care home

Conclusion

The financial case for a granny annexe is overwhelming. You break even in 2-3 years, then save tens of thousands every year after. But more importantly, your family stays together. You get peace of mind knowing your loved one is safe, comfortable, and close by. It's not just a better financial decision, it's a better life decision. Contact us to discuss how an annexe could work for your family.

Have Questions About Building a Granny Annexe?

Our team has over 50 years of experience. We're here to help you make the right decision for your family.

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