Mortgage Application UK 2026 — Step-by-Step Guide from AIP to Completion
Mortgage Application Timeline UK — Step-by-Step from Offer to Completion
How long does a mortgage application take? Complete timeline from initial enquiry to completion day, including what happens at each stage and how to speed things up.
If you are planning your application route from agreement in principle to lender decision, use the Mortgage Application Hub as your central checklist.
Buying a property involves a long chain of steps. Here is a realistic timeline of what happens, how long each stage takes, and how to avoid delays.
Overview Timeline
| Stage |
Typical duration |
Running total |
| Agreement in Principle (AIP) |
1–2 days |
Day 1–2 |
| Property search and offer accepted |
Variable (days to months) |
— |
| Full mortgage application submitted |
1–3 days |
Week 1 |
| Lender processing and underwriting |
1–3 weeks |
Week 2–4 |
| Property valuation/survey |
1–2 weeks |
Week 3–5 |
| Mortgage offer issued |
1–2 weeks after valuation |
Week 4–7 |
| Conveyancing (solicitor work) |
6–12 weeks (runs in parallel) |
Week 1–12 |
| Exchange of contracts |
After all conditions met |
Week 8–14 |
| Completion (you get the keys) |
Usually 1–4 weeks after exchange |
Week 10–16 |
Total from application to completion: Typically 8–16 weeks (2–4 months). Can be faster for simple cases or slower for chains.
Stage 1: Agreement in Principle (AIP)
| Detail |
Information |
| Also called |
Decision in Principle (DIP), Mortgage in Principle |
| What it is |
A preliminary indication of how much a lender will lend you |
| How long |
Usually 24–48 hours (some lenders give instant online decisions) |
| Credit check |
Soft search (usually — check with your broker) |
| How long it lasts |
30–90 days depending on lender |
| Binding? |
No — it’s not a mortgage offer |
What you need for an AIP
| Document |
Detail |
| Income |
Stated salary or self-employed income |
| Deposit |
Amount available |
| Employment status |
Employed, self-employed, contractor |
| Monthly expenses |
Rough figures for outgoings |
| Credit commitments |
Any loans, credit cards, car finance |
Tip: Get your AIP before you start viewing properties. Estate agents take offers more seriously when you can show you’ve been assessed by a lender.
Stage 2: Making an Offer and Acceptance
| Detail |
Information |
| Timeframe |
Varies hugely — could be same day or months of searching |
| Your offer |
Typically 5–10% below asking price (but depends on market conditions) |
| Negotiation |
May take several rounds |
| Once accepted |
Instruct your solicitor and mortgage broker immediately |
Key action: As soon as your offer is accepted, instruct your solicitor/conveyancer and tell your mortgage broker to submit the full application. These two work streams run in parallel.
Stage 3: Full Mortgage Application
| Detail |
Information |
| What happens |
Your broker submits the full application with supporting documents |
| Timeframe |
1–3 days to prepare and submit |
Documents Needed
| If employed |
If self-employed |
| 3 months’ payslips |
2–3 years’ SA302 tax calculations |
| P60 (most recent) |
2–3 years’ tax year overviews |
| 3 months’ bank statements |
3 months’ business bank statements |
| Proof of ID (passport/driving licence) |
3 months’ personal bank statements |
| Proof of address (utility bill/council tax) |
Proof of ID and address |
| Proof of deposit |
Proof of deposit |
| Details of debts (loans, cards, car finance) |
Details of debts |
| Employment contract (if new job/probation) |
Accountant’s reference (some lenders) |
Related: Self-Employed Mortgage — How Much Can I Borrow?
Stage 4: Lender Processing and Underwriting
| Detail |
Information |
| What happens |
The lender verifies your documents, runs a full credit check, and assesses affordability |
| Timeframe |
1–3 weeks |
| Credit check |
Full (hard) search — this appears on your credit file |
| What they check |
Income verification, credit history, affordability stress tests, deposit source |
Common Reasons for Delays at This Stage
| Issue |
Impact |
| Missing documents |
Lender requests more information — adds days or weeks |
| Inconsistencies in bank statements |
Unexplained large deposits, gambling transactions |
| Self-employed income complex |
Lender may request additional evidence |
| Recent job change |
May need a probation confirmation letter |
| Complex property (ex-council, non-standard construction) |
May need additional checks |
Stage 5: Property Valuation
| Detail |
Information |
| What happens |
The lender instructs a surveyor to value the property |
| Purpose |
To confirm the property is worth the purchase price and is acceptable security |
| Timeframe |
1–2 weeks from instruction to report |
| Cost |
Usually £250–£500 (some lenders offer free valuations) |
| Who arranges it |
The lender — not you |
Valuation Outcomes
| Outcome |
What happens next |
| Valued at or above purchase price |
Application proceeds normally |
| Down-valued (valued below purchase price) |
You may need to renegotiate the price, increase your deposit, or the lender may reduce the loan |
| Retention |
Lender withholds some funds until specific repairs are done |
| Declined |
Property is unsuitable as security — application may be withdrawn |
Tip: You can also arrange your own survey (homebuyer report or full structural survey) independently. The lender’s valuation protects them, not you.
Stage 6: Mortgage Offer
| Detail |
Information |
| What happens |
The lender issues a formal mortgage offer |
| Timeframe |
1–2 weeks after successful valuation |
| Contents |
Loan amount, interest rate, term, monthly payment, conditions |
| Validity |
Usually 3–6 months |
| Sent to |
You and your solicitor |
This is the point where the mortgage is confirmed. But you still need the legal work to complete.
Stage 7: Conveyancing (Solicitor Work)
This usually runs in parallel with stages 3–6 but is often the longest part.
| Conveyancing step |
Typical duration |
| Instructing your solicitor |
Day 1 |
| Local authority searches |
2–6 weeks (varies hugely by council) |
| Environmental and drainage searches |
1–2 weeks |
| Title investigation |
1–3 weeks |
| Raising enquiries with seller’s solicitor |
2–4 weeks (depends on responsiveness) |
| Reviewing mortgage offer |
Few days |
| Preparing completion documents |
1 week |
| Total conveyancing time |
6–12 weeks typically |
Common Causes of Conveyancing Delays
| Delay |
Cause |
| Slow local authority searches |
Some councils take 4–6 weeks |
| Seller’s solicitor slow to respond to enquiries |
Chasing required |
| Title issues (missing documents, boundary disputes) |
Can add weeks or months |
| Leasehold complications |
Service charge arrears, lease too short, management company delays |
| Chain breaks |
If someone in the chain pulls out, everything stalls |
Stage 8: Exchange of Contracts
| Detail |
Information |
| What happens |
Both sides commit legally — the sale is now binding |
| Deposit |
You pay the exchange deposit (usually 10% of purchase price) |
| Completion date |
Agreed at exchange — usually 1–4 weeks later |
| Can you pull out after exchange? |
Only by forfeiting your deposit (and potentially being sued) |
Stage 9: Completion
| Detail |
Information |
| What happens |
Your solicitor transfers the money, the seller’s solicitor confirms receipt, you get the keys |
| Timeframe |
Usually 1–4 weeks after exchange (often same day for chain-free) |
| Stamp Duty |
Your solicitor pays this on your behalf from the funds |
| Keys |
Usually collected from the estate agent on completion day |
Full Timeline — Realistic Example
| Week |
What’s happening |
| Week 1 |
Offer accepted. Instruct solicitor and broker. Submit full mortgage application |
| Week 2–3 |
Lender processes application. Solicitor orders searches |
| Week 3–4 |
Valuation arranged and completed |
| Week 4–5 |
Mortgage offer issued. Search results starting to come back |
| Week 5–8 |
Solicitor raises and resolves enquiries |
| Week 8–10 |
All conditions met. Exchange of contracts |
| Week 10–14 |
Completion. You move in |
How to Speed Things Up
| Tip |
Impact |
| Get AIP before house hunting |
Saves time once offer accepted |
| Have all documents ready before applying |
Prevents delays from missing paperwork |
| Instruct a solicitor the same day your offer is accepted |
Conveyancing starts immediately |
| Use a mortgage broker |
They chase the lender and manage the process |
| Respond to all requests within 24 hours |
Every day you delay adds to the total |
| Don’t change jobs, take on debt, or apply for credit during the process |
Can cause the lender to reassess |
| Buy chain-free if possible (new build, unoccupied property) |
Removes the biggest cause of delays |
| Consider personal search companies for local authority searches |
Can be faster than waiting for the council |
Useful Links
aliases:
- /mortgages/mortgage-application/mortgage-application-timeline/
Your home may be repossessed if you do not keep up repayments on your mortgage. PocketWise provides information and guidance — we do not offer financial advice. Seek independent mortgage advice before making decisions about borrowing.