Quick Answer
New Build Mortgage UK — What You Need to Know: Use our mortgage calculator and read our full hub guide to understand your options. Always compare rates using a whole-of-market broker.
- Whole-of-market brokers see deals comparison sites never list, especially for non-standard income
- Start remortgage shopping 6 months before your fix ends — you can lock now and switch if rates fall
- Compare total cost over the fixed period — rate plus fees, not headline rate alone
- Get a soft-search decision in principle before house-hunting — it costs nothing and reveals problems early
The Details That Decide Outcomes
The remortgage window is a free option too few people use. Most lenders let you lock a deal half a year ahead — if rates rise you're protected, and if they fall you can usually re-lock lower before completion.
Product fees deserve as much attention as rates. A £1,499 arrangement fee on a lower rate beats a fee-free deal only on larger loans — roughly £150,000+ for typical gaps. Below that, fee-free wins despite the higher headline rate.
New Build Mortgage UK — What You Need to Know
This guide explains everything you need to know about new build mortgage uk in the UK. We cover how it works, who qualifies, and what to watch out for.
Key Points
- Compare the overall cost of any mortgage, not just the headline rate
- Consider arrangement fees, valuation fees, and early repayment charges
- A whole-of-market broker can access deals not available direct
- Always check the lender is FCA authorised ↗
Current Mortgage Rates (2025)
| Product | Rate (from) | LTV |
|---|---|---|
| 2-year fixed | 4.1% APR | 60% LTV |
| 5-year fixed | 4.3% APR | 60% LTV |
| 2-year tracker | 4.8% APR | 75% LTV |
| 10-year fixed | 4.6% APR | 60% LTV |
Rates are indicative and change daily. Check lenders directly for current offers.
Trusted Resources
- FCA — Mortgage Information ↗
- MoneyHelper — Buying a Home ↗
- MoneySavingExpert Mortgages ↗
- Which? Mortgages ↗
Frequently Asked Questions
A decision in principle usually uses a soft check, which doesn't affect your score. The full application is a hard check — so avoid multiple full applications in quick succession.
Typically 3 to 6 months depending on the lender. New-build purchases often get extended validity because completion dates slip.
Most lenders ask for at least 5–10% of the property price. Rates improve sharply once you pass 15–20% — the biggest pricing jumps happen at 90%, 85% and 75% loan-to-value.
There is no universal answer. A 5-year fix buys certainty; a 2-year fix costs less if rates fall. Remember arrangement fees can outweigh a small rate difference on smaller loans.
It's optional, yet a whole-of-market broker sees deals that never appear on comparison sites, and knows which underwriters accept your income type. For non-standard income it usually pays for itself.
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