Buying your first home in 2026 feels less chaotic than the past few years — but it’s still not “easy”.
Mortgage products change, lender criteria can be picky, and affordability checks are still the biggest hurdle for
most first-time buyers. If you’re looking at Sidcup, you’ve got a strong family area with solid demand and a mix of
property types — but the best outcomes usually go to the buyers who prepare properly before making offers.
This guide explains what’s happening in the 2026 mortgage market, what first-time buyers in
Sidcup should focus on, and how to put yourself in the strongest position to secure a suitable deal.
If you’re aiming to buy this year, treat this as your practical checklist — not theory.
What’s the Mortgage Market Like in 2026?
The main change in 2026 is stability. Rates and products still move, but it’s no longer a market where buyers feel blindsided every week. Lenders are competing again, and there are usually options across different deposit levels and income types — but the underwriting hasn’t gone “soft”. In plain English: you can absolutely get a mortgage as a first-time buyer, but your profile (income, outgoings, credit conduct and deposit) matters more than the headline rate you see online.Affordability in 2026: What Lenders Look At (And What Trips Buyers Up)
Most first-time buyers assume affordability is just salary x a multiple. In reality, lenders look at the full picture: your income, your regular commitments, and how “comfortable” the monthly payment looks after stress testing. Typical affordability factors include:- Income type (basic salary, overtime, bonuses, commission, self-employed earnings)
- Committed spending (car finance, loans, credit cards, subscriptions)
- Household costs (childcare, travel, maintenance, insurance)
- Credit behaviour (missed payments, utilisation, recent borrowing)
Deposit Levels: 5% vs 10% vs 15% — What Changes in Reality?
In 2026, a 5% deposit can be possible, but it often comes with tighter criteria and fewer lender choices. With a 10% deposit you usually access a wider range of products, and 15% can improve pricing and sometimes overall flexibility. For first-time buyers in Sidcup, the right deposit strategy depends on the property type you’re targeting and your affordability. Sometimes buying sooner with a sensible product is better than waiting years to save a few extra percentage points — but it needs to be planned properly.Sidcup Property Types That Can Affect Mortgage Options
It’s not just you that gets assessed — the property does too. Sidcup has a good mix of housing stock, but certain types of property can trigger extra lender questions, especially if the details aren’t clean. Common examples include:- Flats with lease considerations (lease length and service charge expectations)
- Ex-local authority flats (some lenders are fine, some are more selective)
- New builds (may require specific deposit levels and tighter criteria)
- Converted properties (documentation, layout, access, and valuation questions)
Agreement in Principle: Why You Want It Before You Make Offers
An Agreement in Principle (AIP) is a simple way to show you’re serious and helps you understand your likely borrowing position before you start negotiating. In a steady market, it still matters — because estate agents and sellers want confidence that your purchase can complete. Important: an AIP is not a mortgage offer, but it’s a strong early step — especially if your documents and affordability align when you submit the full application.What First-Time Buyers in Sidcup Should Do First (Practical Checklist)
Here’s the sensible order of operations if you want to avoid delays and rejections:- Review your credit file and fix anything obvious (errors, missed payments, high utilisation)
- Reduce committed outgoings where possible (unused credit, short-term finance, unnecessary subscriptions)
- Prepare documents (ID, proof of address, payslips, bank statements, deposit evidence)
- Know your budget including total monthly costs (mortgage + bills + insurance + service charges where relevant)
- Get an AIP before making serious offers
Common First-Time Buyer Mistakes in 2026
These are the mistakes that cause most of the pain:- Chasing the lowest rate without considering fees, criteria and overall suitability
- Applying too late (after offer accepted) and then scrambling for documents
- Ignoring car finance / credit utilisation which reduces affordability more than people expect
- Assuming every lender treats flats the same (they don’t)
- Not planning for the full monthly cost (especially with flats and service charges)
How a Mortgage Broker Can Help First-Time Buyers in Sidcup
First-time buyers usually want the same outcomes: clarity, speed, and confidence. A mortgage broker can help by narrowing down suitable lender options, explaining what matters for your circumstances, and supporting the process once you’re ready to apply. This often includes:- Helping you understand your likely borrowing position before you offer
- Matching you to lenders whose criteria fit your profile
- Reducing errors and delays in the application process
- Supporting you through to mortgage offer and completion