First Time Buyer Guide Slough
This guide covers the full first-time buyer journey in Slough, from checking what you can afford through to picking up the keys, and shows where working with a local mortgage broker simplifies each stage of the process.
Buying your first home involves more moving parts than most people expect: affordability rules, deposit requirements, government schemes, and a chain of steps that each depend on the one before it. This guide maps the whole journey so you know what’s coming next, with links through to detailed guides on each stage.
What Counts as a First-Time Buyer in the UK?
A first-time buyer is someone who has never owned a residential property, anywhere in the world, either on their own or jointly with someone else, including inherited property and property owned overseas.
This definition matters because it determines eligibility for stamp duty relief, first-time buyer mortgage products, and schemes like the Lifetime ISA and Freedom to Buy. It catches out more people than expected, because ownership history counts in ways that aren’t always obvious:
- Previous joint ownership disqualifies you, even if the relationship has since ended. Someone who co-owned a property with a former partner and has since divorced or separated does not qualify as a first-time buyer for a later purchase, regardless of how long ago that ownership ended.
- Overseas property counts. Owning a home in another country, even one you’ve never lived in and don’t currently own, removes first-time buyer status.
- Inherited property disqualifies you, however small the share. For stamp duty relief and scheme eligibility purposes, HMRC’s test is strict: if you have ever acquired a “major interest” in a dwelling anywhere in the world, including by inheritance and including a minority share you never chose to take or never lived in, you no longer count as a first-time buyer. There’s no minimum share below which the disqualification doesn’t apply, and it doesn’t matter whether you sold the inherited share immediately or never occupied the property. This is a statutory rule under Schedule 6ZA of the Finance Act 2003, not lender discretion, so it applies consistently to stamp duty relief and to First Homes eligibility, which uses the same legal definition. The one exception is a deed of variation redirecting the inheritance to someone else before it’s formally transferred to you, made within 2 years of the date of death and drawn up with professional legal advice. Once the property has passed to you, the disqualification can’t be undone.
- Joint applications need every applicant to qualify. If you’re buying with a partner and one of you has owned a property before, most first-time buyer schemes and reliefs, including stamp duty relief, won’t apply to the purchase, even though the other applicant is a genuine first-time buyer.
If you’re unsure whether your specific circumstances count, clarify this with a broker before you start house-hunting, since it affects which products and schemes are open to you.
What Are the Steps to Buying Your First Home?
The first-time buyer process runs through a fixed sequence: affordability check, Agreement in Principle, house hunting, mortgage application, valuation, underwriting, formal mortgage offer, solicitor instruction and conveyancing, exchange of contracts, and completion.
Here’s what happens at each stage:
- Affordability check. A broker or lender assesses your income, outgoings, and credit history to establish a realistic borrowing range before you start looking at properties.
- Agreement in Principle (AIP). A lender gives you a written estimate of how much they’d lend, based on a soft credit check. Covered in detail below.
- House hunting. With an AIP in hand, estate agents treat your offers as credible, which matters in a competitive market.
- Mortgage application. Once an offer is accepted, you submit a full application with supporting documents (payslips, bank statements, ID, proof of deposit).
- Valuation. The lender arranges a valuation of the property to confirm it’s worth what you’re paying for it.
- Underwriting. The lender’s underwriters review the full application against their lending criteria.
- Mortgage offer. A formal, binding offer is issued once underwriting is complete.
- Solicitor and conveyancing. Your solicitor handles legal checks, searches, and contract preparation in parallel with the mortgage process.
- Exchange of contracts. Both parties become legally committed, and you pay your deposit.
- Completion. Funds transfer, ownership passes to you, and you collect the keys.
Each stage has its own timeline and potential pitfalls. For a detailed week-by-week breakdown, see our Mortgage Timeline guide, and for a full document-by-document checklist, see our Mortgage Checklist.
How Much Deposit Do You Need as a First-Time Buyer?
Most lenders require a minimum deposit of 5% of the property price, though a deposit of 10 to 15% or more typically opens up a wider range of mortgage products and more competitive interest rates.
The size of your deposit directly affects your loan-to-value (LTV) ratio, the proportion of the property’s value you’re borrowing. A smaller deposit means a higher LTV, which generally comes with a higher interest rate, since the lender is taking on more risk. For a full breakdown of deposit sizes, how LTV bands affect pricing, and ways to build your deposit faster, see our Deposit Guide.
How Much Can You Borrow?
Lenders typically offer between 4 and 4.5 times your annual income, though the exact figure depends on the lender’s own affordability assessment, which also accounts for your outgoings, existing debt, and credit profile.
This income multiple is a starting point, not a guarantee. Two people on the same salary can be offered very different amounts depending on their spending patterns and credit history. For the full breakdown of how affordability assessments work and how to estimate your own borrowing range, see our How Much Can I Borrow? guide.
What Is an Agreement in Principle and Do You Need One?
An Agreement in Principle (also called a Decision in Principle or Mortgage in Principle) is a lender’s written estimate of how much they would lend you, based on a soft credit check that doesn’t affect your credit score.
Most estate agents in Slough will expect to see an AIP before they take an offer seriously, particularly in a competitive market where sellers want assurance that a buyer can actually secure financing. An AIP isn’t a mortgage offer: it’s an indication, not a guarantee, and the lender can still decline the full application later if something changes or if the full underwriting process uncovers something the initial check didn’t. For a complete explanation of how AIPs work and how to get one, see our What Is a Mortgage in Principle? guide.
What First-Time Buyer Schemes Are Available?
Several schemes exist specifically to help first-time buyers get onto the property ladder, each addressing a different barrier: deposit size, income, or property price.
Freedom to Buy (Mortgage Guarantee Scheme). A permanent government-backed scheme, live since July 2025, that encourages lenders to offer 90 to 95% loan-to-value mortgages by guaranteeing lenders against a portion of potential losses. This lets eligible first-time buyers and home movers buy their main home with a deposit as small as 5%. It applies only to capital repayment mortgages and does not cover shared ownership properties, second or additional homes, buy-to-let or commercial purchases, or interest-only, offset, or guarantor mortgage loans. Halifax is one confirmed participating lender; participation varies by lender and should be checked directly with each one.
Shared Ownership. You buy a share of a property (commonly between 10% and 75%, though older-model leases typically start at 25%) and pay rent to a housing association on the remainder, with the option to buy further shares over time (staircasing). Your deposit is calculated on the share you’re buying, not the full property value. To qualify, household income must be £80,000 a year or less (£90,000 or less in London), and you must be a first-time buyer or meet a small number of other qualifying circumstances. Live listings are currently available in Slough at SNG at Montem, with shares from around 25% and deposits from 5% of the share price.
First Homes. New-build properties sold at a minimum 30% discount to market value (up to 50% where a council can show local need), capped at £250,000 after discount outside London. Eligibility uses the same first-time-buyer test as stamp duty relief, plus the £80,000 household income cap. Availability depends entirely on whether a developer has allocated homes to the scheme locally at a given time; it’s currently not open at Slough’s town-centre developments, though a future allocation is confirmed at the Haymill site in Burnham. See our Local Schemes in Slough guide for current availability by development.
Guarantor and family-backed mortgages. A family member’s savings or property is used as security, reducing the deposit needed or increasing what you can borrow. These are excluded from Freedom to Buy and operate as separate lender products, and they carry specific risks for the guarantor worth discussing openly before proceeding.
Lifetime ISA (LISA). Available to those aged 18 to 39, a LISA lets you save up to £4,000 a year toward your first home, with the government adding a 25% bonus on top (up to £1,000 a year). It can only be put toward a property costing £450,000 or less. If you’re buying jointly with another first-time buyer who also holds a LISA, you can each use your own LISA and bonus toward the same property.
Scheme availability and terms change relatively often, and not every scheme suits every buyer. A broker can help identify which, if any, apply to your situation.
What Costs Do You Need to Budget for Beyond the Deposit?
The deposit is the largest upfront cost, but it isn’t the only one. Budget for:
- Stamp Duty Land Tax (SDLT). First-time buyers pay no SDLT on the first £300,000 of a property’s price, provided the total price is £500,000 or less; above £500,000, first-time buyer relief no longer applies and standard rates apply to the whole purchase. See our Stamp Duty Guide for the full rate breakdown and worked examples.
- Solicitor and conveyancing fees. Cover the legal work of transferring ownership, including searches and contract review.
- Survey costs. An independent survey of the property’s condition, separate from the lender’s valuation, which only confirms the property is worth what you’re paying.
- Mortgage arrangement fees. Some mortgage products charge a fee to set up the loan, which can often be added to the loan itself or paid upfront. See our Mortgage Fees guide for how these vary by product.
- Moving costs. Removals, initial furnishings, and any immediate repairs or changes to the property.
Underestimating these combined costs is one of the most common reasons first-time buyers find themselves short of funds close to completion.
What Mistakes Do First-Time Buyers Commonly Make?
Three mistakes come up repeatedly:
- House-hunting before getting an Agreement in Principle. Without one, offers are harder to get taken seriously, and buyers risk falling for a property before finding out their actual borrowing limit.
- Underestimating the total cost beyond the deposit, particularly stamp duty, solicitor fees, and survey costs, which together can add thousands of pounds to the amount needed at completion.
- Changing credit behaviour mid-application. Taking out new credit, missing a payment, or making large unexplained transfers between the AIP stage and full underwriting can affect the final lending decision, even after an AIP has been issued.
For a fuller list of pitfalls and how to avoid them, see our First Home Mistakes guide.
How Can a Mortgage Broker Help First-Time Buyers in Slough?
A mortgage broker compares products across the whole market rather than a single lender’s range, helps you understand which schemes you’re actually eligible for, and manages the application process from document collection through to completion. For a first-time buyer navigating an unfamiliar process, this typically means fewer delays, fewer surprises at underwriting stage, and a clearer picture of what you can realistically afford before you start viewing properties.
If you’re at the start of your journey and want to understand your options before committing to anything, speak with a broker who works specifically with first-time buyers in Slough. Visit our First-Time Buyer Mortgages Slough page or book a consultation to go through your circumstances in detail.
