Heron Financial arranged a £315,000 mortgage at 85% LTV for a solo first-time buyer in North West London, purchasing a £371,000 purpose-built new-build flat. The client funded most of the £55,000 deposit themselves with £37,000 in personal savings, topped up by an £18,000 builder gifted contribution, a structure that lifted the case out of the 90% LTV band and into the more competitively priced 85% bracket. Heron Financial placed the case with Barclays on a fixed rate at 4.00%, and the mortgage completed in December 2025.
The client
The client was a solo first-time buyer working as a consultant, buying their first home in North West London. They had saved £37,000 of their own money, a genuinely strong solo deposit, and were looking at a new-build flat priced at £371,000 where the housebuilder was offering an £18,000 gifted deposit as part of the purchase incentive.
They came to Heron Financial wanting to use the combination sensibly. Most first-time buyer guidance focuses on stretching to just afford a property. This case was the more interesting flip side: the client could already afford the property at a 10% deposit, but they wanted to know whether the builder incentive could be used strategically to put them in a stronger position on rate.
The case at a glance
- Buyer: Solo first-time buyer, employed
- Nationality: British
- Occupation: Consultant
- Property type: Purpose-built new-build flat
- Location: North West London
- Purchase price: £371,000
- Deposit: £55,000 total, £37,106 personal savings plus £18,000 builder gifted deposit (15%)
- Loan amount: £315,000
- LTV: 85%
- Lender: Barclays
- Product: Fixed Rate at 4.00%
- Repayment method: Capital and interest
- Scheme / incentive: Builder gifted deposit (new-build incentive)
- Completion: December 2025
The challenge
There’s a quiet bit of strategy in this case that’s easy to miss.
LTV bands drive pricing. Lenders price in bands, typically 95%, 90%, 85%, 80%, 75% and 60%. Crossing a band can unlock a meaningfully better rate. On the client’s own £37,000 savings alone, the case would have sat at exactly 90% LTV. Adding the £18,000 builder gift on top moved it to 85% LTV, where Barclays’ pricing is sharper.
Builder incentive treatment. Lenders treat builder gifted deposits inconsistently. Some count the gift towards the deposit at face value. Others deduct it from the purchase price and recalculate LTV against the lower figure, which can collapse the LTV benefit entirely. Lender choice here mattered, because the whole point of the structure was the LTV band drop.
New-build flat at 85% LTV. New-build flats face tighter lender criteria than houses, and many lenders cap new-build flat LTVs at 85%. Landing the case at 85% kept the panel comfortably wide.
Solo affordability on a £315,000 loan. A solo buyer borrowing over £300,000 needs strong, clean income evidence and a lender with workable income multiples. The case had to stand up on a single income, with no second applicant to lean on.
How Heron Financial approached the recommendation
The Heron adviser ran the maths on the LTV band first, because that’s where the value sat.
Modelling the LTV options. Heron Financial mapped what the rate and monthly payment looked like at 90% LTV (savings only) vs 85% LTV (savings plus builder gift). The 85% LTV route was meaningfully better on rate, and the client kept the same out-of-pocket position, so the structure paid off.
Lender choice. Barclays’ approach to builder gifted deposits, counting the gift towards the deposit at face value, with LTV calculated against the full £371,000 purchase price, made them the right home for the case. Their new-build flat criteria and pricing at 85% LTV completed the fit.
Solo affordability check. The Heron adviser confirmed the £315,000 loan sat comfortably within Barclays’ affordability for the client’s consultant income, with the right loan-to-income multiple in place rather than the application sitting on the edge.
Documentation done up front. The builder gift was disclosed and structured correctly with the lender from the outset, so the LTV band benefit held all the way through to offer.
The result was a 4.00% fixed rate at 85% LTV, strong pricing on a mainstream high-street product, and the kind of outcome that simply wouldn’t have been available if the case had been placed without thinking about the LTV band first.
The outcome
The mortgage completed in December 2025. The client moved into their first home with:
- A £315,000 mortgage at 85% LTV
- A fixed rate at 4.00% on capital and interest repayment
- A rate sharpened by deliberately structuring the deposit to drop an LTV band
- The full builder gifted deposit doing useful, strategic work.
What this means for buyers in a similar position
If you’re a first-time buyer with a strong solo deposit and you’re looking at a new-build with a builder incentive, don’t just treat the gift as “free money for the same outcome”.
Think about which LTV band you’d land in with savings only, and which band you’d land in once the gift is added. Crossing from 90% to 85%, or from 85% to 80%, often unlocks a materially better rate on the same monthly outlay. The catch: only some lenders treat builder gifted deposits in the way that preserves the LTV benefit. That’s where a broker who knows each lender’s policy adds real value.
FAQs
How does a builder gifted deposit work on a new-build mortgage?
A builder gifted deposit is a contribution from the housebuilder, typically 5% of the purchase price, that goes towards the buyer’s deposit. The buyer still needs their own savings to make up the rest of the deposit. The gift is not a loan and is not repayable. How lenders treat the gift varies, which affects the final LTV.
Does a builder gifted deposit affect the LTV calculation?
It depends on the lender. Some lenders count the builder’s gift towards the deposit at face value, so LTV is calculated against the full purchase price. Others deduct the gift from the purchase price and recalculate LTV against the lower figure, which can wipe out the LTV benefit. Heron Financial places cases with lenders whose treatment matches the client’s goal.
Can I use a builder gifted deposit to drop into a better LTV band?
Yes, with the right lender. If your own savings put you at, say, 90% LTV, and adding a builder gift would take you to 85% LTV, a lender that counts the gift at face value will price the mortgage at 85% LTV, typically a better rate. This is one of the most underused strategic uses of new-build incentives.
Can a solo first-time buyer get a £315,000 mortgage?
Yes, subject to income. Most lenders cap borrowing at 4.5x income, with some offering 5x or higher for stronger profiles. A £315,000 loan typically needs a single income in the £70,000+ range under standard 4.5x rules, though specific lender criteria and your wider profile affect the practical answer.
Are new-build flats harder to mortgage than new-build houses?
Sometimes. New-build flats face tighter criteria with some lenders, including lower maximum LTVs (often capped at 85%), stricter lease and service charge requirements, and limits on the percentage of a development a single lender will lend against. The lender market is still wide, but lender choice is more important than on a new-build house.
