The deposit required for a mortgage in Hampshire and Surrey in 2026 depends on three things: the property price, the loan-to-value (LTV) you are targeting, and which deposit scheme you are using. The minimum is 5% of the purchase price for most residential properties. The optimum — the point where rates drop significantly and monthly payments become materially lower — is 10%. Above 10%, each additional 5% of deposit reduces the rate but by smaller increments.
The Three Deposit Thresholds That Matter
| Deposit % | Rate Premium over 60% LTV | Typical Rate Band | When It Makes Sense |
|---|---|---|---|
| 5% (95% LTV) | Highest premium (~1.2–1.8%) | 5.2–5.8% typical | Only if 10% unachievable; use govt scheme |
| 10% (90% LTV) | Significant premium (~0.6–1.0%) | 4.6–5.2% typical | Standard first-time buyer target |
| 15% (85% LTV) | Moderate premium (~0.3–0.5%) | 4.3–4.8% typical | Meaningful improvement, worth targeting |
| 20% (80% LTV) | Small premium (~0.1–0.2%) | 4.1–4.4% typical | Significant rate gain over 90% |
| 25%+ (75% LTV) | Best available rates | 3.9–4.2% typical | Target for BTL; good for residential |
What You Actually Need in Cash
The deposit is only part of the total cash required to complete a purchase. The full picture:
| Cash Requirement | Typical Amount | Notes |
|---|---|---|
| Mortgage deposit | 5–20% of purchase price | The minimum varies by scheme and property |
| Stamp duty (SDLT) | 0–5% of purchase price | First-time buyers pay zero on first £425k |
| Solicitor / conveyancing | £1,200–£2,500 | Including searches, Land Registry, transfers |
| Survey | £350–£900 | Homebuyer report; full structural for period property |
| Mortgage arrangement fee | £0–£999 | Many competitive products have no fee |
| Removal costs | £700–£2,500 | Depends on volume and distance |
For a first-time buyer purchasing a 380,000 property in Fleet with a 10% deposit: deposit 38,000 + no stamp duty (FTB, under 425,000) + solicitor 1,800 + survey 500 + removals 1,200 = approximately 41,500 total cash required.
The Lifetime ISA — Free Money for Your Deposit
The Lifetime ISA (LISA) is the most impactful deposit scheme available for first-time buyers buying in Hampshire and Surrey. You can save up to 4,000 per year into a LISA. The government adds 25% — up to 1,000 per year per person. A couple with two LISAs open for 4 years accumulates 32,000 savings + 8,000 government bonus = 40,000 from 32,000 saved. The bonus is applied at the end of each tax year and must be used for a first-time purchase or left in the account until age 60. The property must be purchased for 450,000 or less (the LISA cap).
In our coverage area, the LISA cap is most relevant in Aldershot, Bordon, Farnborough and Andover — where many properties fall under 450,000. For buyers targeting Fleet, Guildford or Winchester, many properties exceed the cap and the LISA is not available on those specific purchases (though savings can remain invested until retirement).
5% Deposit Mortgage Guarantee Scheme
The government mortgage guarantee scheme allows lenders to offer 95% LTV mortgages (5% deposit) on properties up to 600,000 without the standard mortgage indemnity insurance premium. It is available to first-time buyers and home movers. The rate at 95% LTV is significantly higher than 90% LTV — typically 0.6% to 1.0% more — but for buyers who cannot accumulate a 10% deposit, the scheme enables homeownership rather than continued renting. The monthly cost comparison: on 320,000 at 5% deposit (95% LTV at 5.5% rate) versus 10% deposit (90% LTV at 4.8% rate) is approximately 1,596 vs 1,489 per month — a 107 per month difference for 16,000 less deposit.
How Much Deposit in Key Hampshire and Surrey Towns
| Town | 5% Deposit | 10% Deposit | Note |
|---|---|---|---|
| Aldershot GU11 | £9,250–£14,000 | £18,500–£28,000 | Most affordable GU postcode |
| Andover SP10 | £8,750–£13,500 | £17,500–£27,000 | Strong LISA eligibility |
| Farnborough GU14 | £10,750–£16,500 | £21,500–£33,000 | Active new build market |
| Basingstoke RG21 | £9,250–£15,500 | £18,500–£31,000 | HTB cohort remortgaging |
| Fleet GU51 | £13,000–£18,000 | £26,000–£36,000 | Strong commuter demand |
| Camberley GU15 | £14,500–£20,500 | £29,000–£41,000 | Surrey postcode premium |
| Winchester SO22 | £17,500–£26,000 | £35,000–£52,000 | Highest entry prices |
| Guildford GU1 | £16,000–£22,500 | £32,000–£45,000 | University of Surrey market |
Building Your Deposit Faster
The most effective approach for most Hampshire and Surrey first-time buyers: open two LISAs (one each for a couple) as early as possible to start accumulating the government bonus; save the remaining deposit in a high-interest cash ISA or savings account; use a Help to Buy ISA maturity if one was opened before 2019; and consider guarantor or family-assisted mortgage products if family wealth is available to support the deposit without a formal gift.
For self-employed buyers and contractors whose income is growing rapidly, the deposit accumulation timeline can be compressed by the growth in assessable income: a contractor on 350 per day today who is on 500 per day in two years has a 150% increase in specialist maximum mortgage that effectively stretches the deposit from a 10% requirement to a natural coverage by the income growth alone.
Get Free Mortgage Advice
Whole-of-market advice, no broker fee. We confirm your position before any application.
📞 01252 111 000The LISA in Practice — Common Questions
Two questions arise constantly from LISA users in our Hampshire and Surrey market. First: can I use my LISA if the property is above 450,000? No. The LISA cannot be used for any purchase above 450,000. If you purchase above the threshold, the savings remain in the LISA for retirement. Second: what happens if my purchase falls through after I withdraw the LISA for the conveyancer? The conveyancer holds the LISA funds and returns them to the LISA if the purchase fails before completion. The government bonus is not lost in a failed transaction unless the LISA is withdrawn to personal accounts rather than direct to conveyancer.
Deposit Gifts from Family
Gifted deposits from parents, grandparents or other family members are accepted by all mainstream and specialist lenders, provided a gift letter is signed confirming the money is a gift and not a loan, that the donor has no interest in the property, and that the donor is solvent. The gift letter format is standard and your solicitor will provide it. For buyers where family wealth is available but a formal gift is not appropriate, a family offset mortgage or a guarantor mortgage may be alternatives — we advise on all routes before recommending the one most suited to your family’s circumstances.