Your family’s growing — but your house isn’t.
Whether you’ve outgrown your starter home or just want more room for family life, upsizing can feel exciting and daunting at the same time.
The good news is, with the right plan, moving to a larger home doesn’t have to mean unaffordable repayments or endless paperwork.
At Mortgage Knight, we specialise in helping families make that next move — smoothly, safely, and cost-effectively.
What Does ‘Upsizing’ Mean?
Upsizing simply means buying a bigger or more suitable home — usually your second property after owning your first.
It could mean:
- Moving to a house with extra bedrooms
- Finding a home closer to schools or family
- Upgrading to a better location
The key is to make sure your new mortgage still fits your family budget.
How to Fund a Bigger Home
There are several ways families finance their move:
Using Equity
If your current home has risen in value, you can use the equity as your deposit for the new property.
Example:
- Current home value: £300,000
- Remaining mortgage: £200,000
- Equity available: £100,000
You could use £50,000–£80,000 of that as your deposit on your next home.
Porting Your Mortgage
Many lenders allow you to port your existing deal to a new property.
This can save on early repayment charges and keep your current rate — ideal if rates have risen since your last deal.
Remortgaging and Moving
If your lender won’t allow porting or the new home is much more expensive, a new mortgage may offer better rates or flexibility.
What Lenders Look for When You Upsize
Even as an existing homeowner, lenders will recheck affordability. They’ll look at:
- Household income (combined, if applicable)
- Current mortgage and other debts
- New property value and deposit size
- Number of dependants (important for family applications)
Mortgage Knight helps families present their finances clearly — especially when childcare costs, car payments, or parental leave are part of the picture.
Balancing Family Finances
Families often face more outgoing costs than before — childcare, food, transport, school expenses — so lenders assess these carefully.
To strengthen your case:
✅ Reduce unsecured debts before applying
✅ Save a solid emergency fund
✅ Show consistent income and spending patterns
We help you find lenders who use realistic family budgets, not rigid computer-based affordability tests.
Second-Time Buyer Schemes and Options
There are still helpful options for families moving up the ladder:
- Porting your current mortgage to avoid fees
- Part-exchange options on new builds
- Family springboard or joint borrower mortgages if you need a little extra affordability
- Remortgage with debt consolidation (to tidy finances before moving)
Mortgage Knight can advise which is best for your situation — and manage the transition smoothly.
How Mortgage Knight Helps Families Move
We understand that family life doesn’t stop while you move — so our process keeps things simple:
- Handle all communication with lenders and solicitors
- Compare deals across 90+ UK lenders
- Ensure your new payments are affordable long-term
- Work around maternity leave, childcare costs, or variable income
We take care of the mortgage — you focus on the move.
Case Studies
Case Study 1: The Patel Family – Growing Family, Growing Space
Expecting their second child, the Patels wanted a bigger home. We ported their existing NatWest mortgage to a new £450,000 property and added a small top-up at a great rate.
Case Study 2: Ben & Lucy – Equity Release for Upsizing
Their first home had appreciated by £90,000. Mortgage Knight helped them release equity and secure a Nationwide mortgage with affordable monthly payments.
Case Study 3: Laura – Moving as a Single Parent
Laura wanted a garden and better school access. Using her stable salary and maintenance income, we found a lender who approved her move without stretching her budget.
Frequently Asked Questions
Q1. Can I use my home’s equity to move up the ladder?
Ans: Yes — most families use built-up equity as their deposit for their next home.
Q2. What if I’m still on my current fixed-rate deal?
Ans: You might be able to port your mortgage to avoid early repayment charges.
Q3. Do childcare costs affect affordability?
Ans: Yes, but lenders vary in how they assess them — we’ll find one that’s realistic.
Q4. Can we buy before selling our current home?
Ans: Yes — bridging options or “let-to-buy” mortgages may make this possible.
Q5. What if one partner is on maternity or paternity leave?
Ans: Some lenders use pre-leave income for affordability if return-to-work plans are confirmed.




