The mortgage offer is the lender's binding commitment — the moment you and the lender agree the deal in formal terms. It comes after full underwriting and is what your conveyancer needs before exchange of contracts. This guide covers what's in the offer, the typical timeline, the 6-month validity period, conditions you must satisfy, what causes delays, and what to do if completion slips past expiry.

What a mortgage offer is

A mortgage offer is a formal, binding document from the lender committing to lend a specific amount on specific terms for a specific property. It includes:

• Loan amount
• Interest rate and product
• Term (e.g. 25 years)
• Monthly payment
• Total amount payable over the term
• Fees and charges (product fee, valuation, early repayment)
• APRC (Annual Percentage Rate of Charge)
• Conditions you must satisfy
• Validity period

Once issued, the offer is binding on the lender for the validity period — they can only withdraw in limited circumstances (misrepresentation, material circumstance change).

Timeline from application to offer

Typical 2026 mortgage timeline:

1. Day 0: Full application submitted (after offer accepted on property).
2. Day 1-3: Lender reviews documents, runs hard credit check.
3. Day 3-7: Income verification — payslips, P60, employer reference.
4. Day 5-14: Property valuation. Surveyor visits or does desktop valuation.
5. Day 10-21: Underwriting. Lender's underwriter reviews the full file and decides.
6. Day 14-28: Offer issued (or rejected, or conditional offer).

Clean residential cases (employed, freehold purchase, standard property, good credit) typically issue offers in 2-3 weeks. Complex cases (self-employed, leasehold, non-standard construction) take 4-8 weeks. New-build purchases through builder-mortgage panels can be even faster (3-10 days).

Validity period

The standard UK mortgage offer is valid for 6 months from issue. Some variations:

• 3-month validity: Some specialist lenders, particularly for fixed-rate products.
• 6-month validity: Standard for most high-street residential mortgages.
• 3-12 month structured validity for new-builds: The initial offer is shorter but can be extended in tranches as the property is built.
• Re-mortgages: Typically 3-6 months.

You need to complete the purchase before the offer expires. Most chains take 8-12 weeks from offer to completion — well within the 6-month window. Slow chains can run close to expiry.

What's in a typical mortgage offer

A standard FCA-compliant mortgage offer has these sections:

1. Personal details

Borrower(s) name, address, DOB. Lender's name and address.

2. Property details

Address, purchase price, property type (freehold/leasehold, house/flat), valuation amount.

3. Loan details

Loan amount, LTV, repayment type (capital + interest or interest-only), term in years.

4. Rate and payments

Initial rate, initial period (e.g. 5-year fix), follow-on rate (typically Standard Variable Rate), monthly payment during fix and reverting period, total payable over term, APRC.

5. Fees

Product fee (added to loan or paid upfront), valuation fee, legal fee (if lender-paid), exit fee, early repayment charges during the fix.

6. Special conditions

Lender-specific conditions: works required pre-completion, buildings insurance requirements, additional documentation, property-specific issues.

7. Standard terms

General terms of business — usually a separate booklet referenced in the offer.

Conditions on the offer

Standard conditions

• Buildings insurance from exchange (sum insured at least the lender's required amount).
• Solicitor's certificate of title before drawdown.
• No significant change to your employment or income before completion.
• No new substantial debt commitments.
• Solicitor's confirmation of legal interest at completion.

Property-specific conditions

Some offers include conditions about the property:

• Retention for required works (lender withholds part of the loan until works complete).
• Re-inspection after works.
• EWS1 certificate for flats over 11m (cladding safety).
• Specialist surveys (damp, timber, asbestos).
• Indemnity insurance for unresolved legal issues (e.g. missing planning permission).

What causes delays between application and offer

Most common causes of mortgage offer delays:

Property valuation issues

• Down-valuation: Surveyor values the property below the agreed purchase price. Lender will only lend on the lower figure, leaving a gap. Either renegotiate price with seller or top up deposit.
• Structural concerns: Surveyor identifies issues requiring further specialist inspection.
• EWS1 cladding issues: For 11m+ flats, lenders need EWS1 or PAS 9980 certification. Buildings without can be unmortgageable.

Income verification delays

• Self-employed: 2-3 years of SA302s and tax computations.
• Variable income (bonus, commission): lender wants 2-3 years' averaged figures.
• Probation period: lenders may require 3-6 months in role.
• Contract work: contract continuity evidence.

Credit file issues

• Undisclosed defaults found at hard search.
• Recent missed payments.
• Late payments on credit cards.
• Address mismatches affecting credit score.

Documentation gaps

• Missing payslips, P60s, or bank statements.
• Employer reference not received.
• Gifted deposit letter format wrong.
• Photo ID or proof of address insufficient.

Lender capacity

• High volume periods (post-Budget, rate cut announcement) slow underwriting.
• Specialist underwriting for non-standard cases takes longer.

Can a mortgage offer be withdrawn?

Yes, in limited circumstances:

• Misrepresentation — you provided false or misleading information.
• Material change to your circumstances — job loss, major new debt, second mortgage taken out.
• Property issues found at final lender check — last-minute valuation issue or title problem.
• Lender fraud detection — sometimes lenders pull offers if they suspect application fraud.

Best practice between offer and completion:

• Don't change jobs.
• Don't take on new credit (loans, cards, car finance, BNPL).
• Don't max out existing credit cards.
• Don't enter overdraft.
• Don't make any large unexplained withdrawals or deposits.

Extending a mortgage offer

If completion is delayed beyond the offer validity:

• Same-lender extension: Most lenders allow 1-3 month extensions, provided your circumstances haven't changed. Some charge a fee (£0-£200).
• Re-application: If circumstances have changed or rates have moved, you may need to reapply. The new offer may be at different terms.
• New-build extensions: Lenders have structured extension programmes for new-builds under construction. Can run 6-12+ months.

Start the extension conversation 4-6 weeks before validity ends. Lenders process extensions faster than reapplications.

What if the offer expires before completion?

You have to reapply for a new offer. The lender does:

• Fresh hard credit check.
• Re-verifies income.
• Often re-values the property.
• Issues new offer at current rates and terms.

Risks if rates have changed materially:

• New rate may be higher; monthly payment increases.
• Affordability check uses current stress rate.
• Property valuation could differ (up or down) since original valuation.
• Some lenders may decline if your situation has changed.

What to do when you receive your offer

1. Read the offer carefully. Especially conditions and special clauses.
2. Confirm the figures match what you discussed with your broker.
3. Notify your conveyancer immediately. They need the offer before exchange.
4. Set up buildings insurance to start at exchange.
5. Check the validity period and plan completion well within it.
6. Keep employment and credit clean from now until completion.
7. Don't accept the offer formally until just before exchange — once accepted, you're committed.

Reading the offer document carefully

Mortgage offers run 20-40 pages. Many borrowers skim the first few pages and miss critical clauses. Key sections to read in detail:

• Rate and product type: Confirm matches what you applied for. Watch for "tracker" vs "fixed" vs "discount" labelling.
• Reversion rate: The rate after the initial fix or tracker period ends. Usually the lender's Standard Variable Rate (SVR), often much higher.
• Early repayment charges (ERC): Percentage of outstanding balance for repaying during the fix. Typical 5% in year 1, declining annually.
• Overpayment allowance: Usually 10% of the balance per year without ERC. Useful for capital reduction.
• Portability: Whether you can transfer the mortgage to a new property if you move during the fix.
• Special conditions: Property-specific clauses, retentions, or works requirements.
• Validity end date: Day you must have completed by.

What to do if the property valuation is lower than purchase price

A "down-valuation" is when the lender's surveyor values the property below what you agreed to pay. Options:

1. Renegotiate with the seller. Lower the purchase price to the valuation. Sellers often accept rather than risk the chain collapsing.
2. Top up the deposit. Pay the difference yourself if you have the cash.
3. Appeal the valuation. Provide comparable sales evidence. Most successful when the valuation is materially out of step with the local market.
4. Switch lender. Some lenders value differently; another surveyor may agree your price.
5. Walk away. If none of the above works and the property isn't worth the asking price.

The drawdown stage

"Drawdown" is the day funds are transferred from the lender to your conveyancer to fund completion. Triggered by:

• Your conveyancer's "Certificate of Title" — the formal sign-off that all legal conditions are met.
• Confirmation of buildings insurance from exchange.
• Final lender pre-drawdown check (some lenders run a final credit search).

Drawdown usually happens on completion morning. Funds clear into the seller's conveyancer's account within hours, releasing keys.

Frequently asked questions

What is a mortgage offer?

A mortgage offer is the lender's formal, binding commitment to lend a specific amount on specific terms — issued after full underwriting. Typically valid for 6 months from issue.

How long does a mortgage offer take?

Typically 2-4 weeks from full application. Clean cases 5-10 working days. Complex cases (self-employed, leasehold, non-standard property) 6-8 weeks.

How long is a mortgage offer valid?

Standard 6 months. Some lenders 3-4 months. New-builds have shorter initial validity with extensions available.

What conditions are on a mortgage offer?

Typical: maintain buildings insurance from exchange; solicitor's certificate of title; complete any required works; maintain employment; no significant change to circumstances.

What causes mortgage offer delays?

Property valuation issues (down-valuation, EWS1 cladding), income verification delays, credit file issues found at hard search, lender underwriting volume, documentation gaps.

Can a mortgage offer be withdrawn?

Yes — for misrepresentation, material circumstance change (job loss, new debt), or property issues. Don't take on new debt or change jobs between offer and completion.

Can I extend a mortgage offer?

Most lenders allow 1-3 month extensions if completion is delayed. Some charge a small fee. For new-builds, structured extensions can run 12+ months.

What happens if my mortgage offer expires?

You have to reapply. The lender does a fresh credit check, re-verifies income, and re-values the property. New offer may be at different terms.

Why offer issues matter beyond the offer itself

The mortgage offer is a critical gate in the conveyancing chain — without it, exchange cannot happen, and any delay risks cascading the rest of the chain.

Mortgage offer for new-build properties

New-build mortgage offers operate differently because the property may not be complete at offer date. Key differences:

• Shorter initial validity (3 months typical) with extensions linked to construction progress.
• Builder's panel lenders may have streamlined processes.
• Specific developer protections (e.g. NHBC warranty requirement).
• Reservation fee separation — the £500-£2,000 paid to the builder is separate from mortgage.
• Stage payments may be required if buying off-plan from foundations.

For new-builds completing 6-12 months after offer, work with a broker familiar with new-build extensions — failing to manage the extension can lose the rate and product.

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Last reviewed: 6 June 2026.