Mortgage Advice Guide

First Time Buyer in London? Here's What Mortgage Advice Really Means

Roger Cooper

Roger Cooper, CeMAP

5 February 2026 · 6 min read

Buying your first home in London is exciting, stressful, and financially significant in a way that is hard to fully appreciate until you're in the middle of it. The stakes are high — this is the largest financial commitment most people will ever make — and the mortgage advice you receive at this stage sets the foundation for everything that follows.

This guide explains what mortgage advice really means for first-time buyers in London, and why independent advice is particularly important at this stage.

What Mortgage Advice Actually Is (and Isn't)

Many first-time buyers confuse mortgage advice with mortgage comparison. Going to a comparison website gives you a list of rates. A mortgage adviser does something fundamentally different.

A mortgage adviser: - Assesses your full financial picture — income, debts, commitments, credit history - Determines how much you can realistically afford to borrow and repay - Recommends the mortgage product that is right for your circumstances — not just the cheapest headline rate - Manages your application through to mortgage offer - Advises on protection: what happens if you become ill, lose your job, or die?

The distinction matters because a cheap rate with the wrong product can cost you more in the long run. A longer initial fixed rate might cost marginally more but provide budget certainty that suits your circumstances. An adviser who understands your situation makes that call on your behalf.

How Much Deposit Do You Need in London?

The minimum deposit for a residential mortgage is 5% of the purchase price. On a £400,000 property — typical for outer London — that is £20,000.

At 5% deposit (95% LTV), your mortgage choices are narrower. At 10% deposit (90% LTV), significantly more lenders compete for your business and rates improve. At 15-20% deposit, you access the most competitive deals.

In London specifically, most first-time buyers are targeting something in the £350,000-£600,000 range depending on the area. The deposit challenge is real — but so is the variety of options available:

- Standard mortgage: Your own savings, gift from family, or combination - Shared Ownership: Buy 25-75% of a property, pay subsidised rent on the rest - First Homes: Government scheme offering at least 30% discount for eligible buyers - Joint Borrower/Sole Proprietor: Parents help with affordability without owning a share

Understanding the Costs Beyond the Deposit

First-time buyers are often caught out by costs beyond the deposit itself:

- Stamp duty land tax: First-time buyers pay 0% on the first £300,000 and 5% on £300,001-£500,000. On a £400,000 purchase, that's £5,000. - Solicitor/conveyancer fees: Typically £1,500-£3,000 including searches and registration - Survey costs: From £300 for a basic valuation to £1,500+ for a full structural survey - Mortgage arrangement fees: Some deals include product fees (typically £999-£1,999) — we compare total cost including fees, not just rate - Moving costs: Often underestimated — budget £500-£2,000

Total non-deposit costs for a first-time buyer are typically £8,000-£15,000 depending on purchase price and whether you pay upfront fees.

The Agreement in Principle — Your First Step

Before you start viewing properties seriously, get an Agreement in Principle (AIP), also called a Decision in Principle. This is a statement from a lender that, subject to a full application, they are likely to offer you a mortgage up to a certain amount.

Estate agents take you more seriously when you have an AIP. Some won't allow viewings without one. We arrange AIPs quickly — typically within 24 hours — and keep them current throughout your search.

Common First-Time Buyer Mistakes (and How Advice Prevents Them)

1. Applying to multiple lenders — each hard credit search leaves a footprint. We use soft searches initially to preserve your credit record. 2. Accepting the bank's offer without comparison — your bank only offers their products. A whole-of-market adviser compares 90+ lenders. 3. Ignoring protection — if you can't work due to illness, your mortgage still needs paying. We advise on appropriate income protection and life cover. 4. Underestimating the costs — we model the full cost of purchase including all fees from day one. 5. Rushing the survey — in a competitive market, buyers sometimes skimp on surveys. We advise on the right survey level for the property type.

Working With an Independent Adviser as a First-Time Buyer

Our role for first-time buyers in London is to make the whole process clear, manageable, and as stress-free as possible. From the first conversation — where we assess your affordability and explain all your options — through to the moment you receive your keys, we guide you at every step.

Initial advice is always free. We only charge our fee when we submit a mortgage application on your behalf.

Your home may be repossessed if you do not keep up repayments on your mortgage.

Roger Cooper

Roger Cooper

CeMAP Qualified Mortgage Adviser | FCA Regulated

Roger has over 15 years of experience as an independent mortgage adviser in London. CeMAP qualified and FCA regulated, he specialises in complex cases including self-employed applicants, portfolio landlords, expat mortgages and high-value London purchases.

Frequently Asked Questions

How much can I borrow as a first-time buyer in London?
Most lenders offer 4-4.5x your gross annual income. Some specialist lenders offer up to 5.5x for high-earning applicants. We assess your specific income, outgoings, and deposit to give you a precise maximum borrowing figure.
What government schemes are available for first-time buyers in London in 2026?
Shared Ownership (buy a percentage, rent the rest) and First Homes (at least 30% discount for eligible buyers) are the main active schemes. Help to Buy closed in 2023. We advise on which scheme, if any, suits your circumstances and which lenders participate.
Should I use a mortgage adviser or go directly to my bank as a first-time buyer?
Your bank offers only their products. A whole-of-market adviser compares the full market. For first-time buyers in London who may have complex income or need the best possible rate, independent advice almost always identifies a better outcome than going direct to one lender.
Can I get a mortgage in London with a gifted deposit from my parents?
Yes. Most lenders accept gifted deposits from immediate family, provided the gift is genuine (not a loan). You'll need a letter from the gifting family member confirming this. We handle all the paperwork and ensure the lender is satisfied.

Important: Your home may be repossessed if you do not keep up repayments on your mortgage. The information in this article is for general guidance only and does not constitute regulated mortgage advice. Please speak to a qualified adviser before making any mortgage decisions.

Need personalised mortgage advice?

Speak to Roger directly — free initial consultation, no obligation.