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Buying Your First Home: Mortgage to Completion

Buying your first home takes 6-12 months from serious house-hunting to keys in hand. Each step has cost, timing, and decision-points. This guide walks through them.

Estimated timeline

4-9 months from accepted offer to completion (plus 12-24 months saving the deposit)
1

Build the deposit and check your credit

12-24 months saving

Most first-time buyers need a 5-10% deposit. For a £250,000 home, that's £12,500-£25,000. Use a Lifetime ISA (LISA — £4,000/year, 25% government bonus up to age 50, must be 12+ months old, max property £450,000). Check your credit reports at all three agencies (free with Experian, Equifax, TransUnion). Fix errors. Avoid new credit applications in the 6 months before mortgage application. Save 1-2 years for legal fees, surveys, stamp duty (first-time buyer relief), and moving costs (~£3,000-£8,000).

2

Get a Decision in Principle (DIP)

1-2 weeks

Speak to a whole-of-market mortgage broker or use comparison sites. Mortgage broker fees range £0 (commission-only) to £500-£1,500 (fee + commission). The DIP is a soft-check estimate of what you can borrow. Useful for: searching properties in the right price bracket; signalling seriousness to estate agents. Valid 60-90 days. Get DIPs from 2-3 lenders to compare.

3

Find and offer on a property

4-12 weeks finding the right one

Use Rightmove, Zoopla, OnTheMarket. Filter on bedrooms, area, EPC rating, leasehold/freehold. Visit 10-20 properties to calibrate. When ready, make an offer through the estate agent — usually verbal then in writing. Below asking is common for slow markets; above for hot markets. The seller can reject, accept, or counter. Once accepted, the property is "sold subject to contract".

4

Conveyancing solicitor or licensed conveyancer handles the legal transfer (£800-£2,500). Get quotes — fixed fees are common. Survey: HomeBuyer Report (£400-£900) for most properties, full Building Survey (£600-£1,500) for older or unusual properties. Mortgage valuation is for the lender only and is not a survey for you. Pay early — surveys take 2-3 weeks to book and complete.

5

Mortgage application and offer

2-6 weeks from full application to offer

Submit full mortgage application (after DIP and offer accepted). Lender does hard credit check, full affordability calculation, valuation. Mortgage offer issued after 2-6 weeks, typically valid 6 months. Read the offer carefully — interest rate, fixed/variable, term, fees, early repayment charges. The mortgage offer is binding on the lender (subject to material change in circumstances).

6

Conveyancing searches and enquiries

6-12 weeks

Your solicitor orders: Local Authority search (planning issues, road schemes, contaminated land — £100-£300), Environment search (flood risk, ground stability), Water/Drainage search, Chancel Repair search. They review the contract from the seller's solicitor, raise enquiries about anything unclear, and check title. This stage can take 6-12 weeks. Push your solicitor for updates weekly.

7

Exchange of contracts: both sides sign and lock in. From this point, neither side can back out without legal penalty (10% of price typically). 5-7 days later (or longer if agreed): completion. The mortgage funds are sent. Your solicitor confirms completion. You collect the keys from the estate agent. Stamp Duty Land Tax (SDLT) is paid within 14 days — first-time buyer relief means £0 SDLT on properties up to £425,000 (2025-26 rates).

8

After moving in

Week 1 admin; 1-2 months to feel settled

Notify your bank, employer, HMRC, DVLA, GP, schools, council tax (single occupier discount if applicable). Set up direct debits for mortgage, council tax, utilities. Get buildings insurance from completion day (the lender requires it). Get contents insurance. Register on the electoral roll. Update the Land Registry title — your solicitor handles this. Keep ALL documents — the title deeds, mortgage offer, completion statement, surveys — together for the future.

Frequently asked questions

Do I need a 5% deposit?
95% mortgages exist but are not always available; 90% mortgages are widely available. The Help to Buy: Equity Loan closed in 2023 — new buyers use 95% deals or the mortgage guarantee scheme.
Is leasehold OK to buy?
Most flats are leasehold. Read the lease carefully — ground rent (capped on new leases from 2022), service charges, lease length (avoid under 80 years), restrictions. The Leasehold and Freehold Reform Act 2024 will improve some terms once commenced.
What happens if the chain breaks?
If a property in the chain (people whose sales depend on each other completing) falls through, the whole chain may collapse. You can try to find another property or wait. Bridging finance is expensive but can fill the gap in some cases.
How much is stamp duty for first-time buyers?
From April 2025: 0% on first £425,000; 5% on £425,001-£625,000; standard rates above £625,000. Available only if buying as first home, both buyers first-time buyers, and intending to live in the property.

Official bodies and resources

Citizens Advice

Charity

Provides free, confidential, and independent advice on a wide range of issues including benefits, housing, debt, and employment.

Related guides

Right to Buy and Right to Acquire

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Shared Ownership

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Mortgage Arrears and the Pre-Action Protocol

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Leasehold and Service Charge Disputes

Owning a leasehold property means owning the property for a fixed term while the freehold — the land — is owned by someone else (the freeholder or landlord). Leaseholders pay ground rent (now largely abolished for new leases) and service charges for the maintenance and management of the building. Disputes about service charges, management quality, and lease terms are common, but leaseholders have legal rights and access to the First-tier Tribunal (Property Chamber) to resolve them.

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Disclaimer

This information is for general guidance only and does not constitute legal, financial, or professional advice. Always check official sources and seek qualified help where needed.