The short answer
A sound first-home plan has six stages: establish cash and monthly affordability; prepare documents and credit records; compare mortgages and obtain an Agreement in Principle; research and view homes; make an evidence-based offer; then complete valuation, survey, legal checks, exchange or missives, and completion. Keep an emergency reserve rather than spending every pound on the deposit.
1. Set the budget before searching
Separate the deposit from tax, conveyancing, searches, survey, mortgage fees, removals and early repairs. Model a higher interest rate and include council tax, energy, insurance, service charges and maintenance in the monthly budget. Start with the first-time buyer readiness planner, then use our buying-power calculator, mortgage calculator and moving-cost planner for the separate numbers.
2. Prepare for a mortgage application
Lenders assess income, regular spending, debts, credit history, deposit source and the property. Assemble identification, address history, bank statements, payslips or accounts and tax records, plus evidence for gifted deposits. Avoid taking new credit merely to improve a headline deposit.
3. Understand what an Agreement in Principle means
An Agreement in Principle is an early indication, not a mortgage offer. The lender can still decline or change the amount after a full affordability assessment, credit checks and valuation of the chosen property. Ask whether the initial check leaves a hard or soft footprint on your credit file.
4. Research before offering
Compare completed sales, condition, tenure, lease length, service charges, flood and planning context, transport and the local market. An asking price is a proposal, not proof of value. Use the house-price explorer for area context and read what sold prices really tell you.
5. Protect yourself after the offer
The lender’s valuation is for the lender and is not a condition survey. Choose an appropriate independent survey, instruct a conveyancer, respond promptly to enquiries, and do not treat the transaction as certain before the legally binding stage. England, Wales and Northern Ireland differ from Scotland, so follow the process for the property’s nation.
6. Prepare for completion and ownership
Confirm buildings insurance timing, transfer arrangements, final meter readings, keys, council tax and utilities. Retain cash for urgent defects and the first mortgage payment. Store the mortgage offer, survey, guarantees and completion statement.
Reliable starting points
Use GOV.UK’s buying-a-home guidance and the impartial MoneyHelper first-time buyer guide. Tax and assistance rules are nation- and date-specific, so confirm them for the transaction rather than relying on an old checklist.
Limitations and corrections
This guide cannot assess your mortgage eligibility or legal position. Use regulated mortgage advice and qualified legal and surveying professionals where appropriate. Send corrections to hello@propertiesandhomes.co.uk.
Reviewed by the Properties & Homes editorial team
Published and last reviewed: 14 August 2026.
Change log: first edition.