How to Approach Your Bank for Consent to Let (2026)

Applying for consent to let is straightforward when you prepare properly — but many landlords trigger delays or refusals by calling the wrong department, omitting documents, or misdescribing the tenancy. Your lender needs confidence that the property will be let responsibly, insurance is valid, and you remain a low-risk borrower.

This guide explains how to approach your bank, what to say, what to send, and how consent to let fits with longer-term HMO mortgage or buy-to-let plans.

Before You Contact the Lender

Do this groundwork first:

1. Read your mortgage offer and terms — find the occupation clause and any reference to “permission to let”
2. Check outstanding balance and LTV — most lenders want roughly 20–25% equity
3. Confirm payment history — no recent arrears
4. Decide tenancy type — single AST household vs multiple sharers (HMO)
5. Arrange landlord insurance quotes — you will need cover before approval

If you plan multiple unrelated tenants, stop — consent to let is not the right route. Read consent to let explained and compare HMO vs buy-to-let before contacting the bank.

Who to Call at Your Bank

Use the correct team:

• “Consent to let” or “Permission to let” team
• “Change of circumstances” or “Mortgage servicing” — if no dedicated line exists
• Avoid generic retention teams unless they confirm they handle consent

Online banking message centres sometimes route to the wrong queue. A phone call to the number on your annual statement usually reaches mortgage servicing.

What to say (template):

> “I hold a residential mortgage on [address]. My circumstances are changing and I need to let the property under an assured shorthold tenancy. I would like to apply for consent to let. Can you send the application form and confirm your criteria, fees, and typical processing time?”

Stay factual. Do not minimise the let (“just for a few weeks”) unless that is genuinely the plan — lenders prefer clear dates.

Documents You Will Usually Need

Prepare these before applying:

Document	Purpose
Completed consent form	Lender-specific application
Proposed rent	AST rent or agent valuation
Tenancy agreement draft	Shows tenant type and term
Letting agent details	If using managed let
Landlord insurance schedule	Valid from tenancy start
Gas Safety / EICR	If already available
Proof of new address	If relocating (some lenders ask)

If rent is below your mortgage payment, explain how you will cover any shortfall — lenders assess affordability even on consent.

How to Frame Your Application

Be accurate about tenant type. A property let to four unrelated sharers sharing a kitchen is likely an HMO, not a standard family let. Misrepresentation can void consent and insurance.

Show professional management if possible. Some lenders favour regulated find out more, especially for absentee landlords.

For more on this topic, see our guide to Are HMO Mortgages More Expensive? Cost Comparison.

Provide clear dates. Consent is usually six to twelve months. State start date, expected end date, and whether you will renew, sell, or remortgage to buy-to-let.

Demonstrate equity. If you estimate value, note recent comparable sales or an agent appraisal — helpful when LTV sits near policy limits.

For more on this topic, see our guide to How Bridging Loans Help Convert C3 to C4 Properties.

Our article on renting out on a residential mortgage covers when consent is mandatory versus when remortgage is smarter from the outset.

Fees, Rates, and Timing

Typical consent to let costs:

• Admin fee: often £50–£150 (varies by lender)
• Rate loading: some lenders add 0.25–1.00% to your rate for the permission period
• Processing time: often five to fifteen working days if documents are complete

Apply before marketing the property or accepting a holding deposit. Tenants should not move in until you hold written approval.

Build in time for:

• Insurance binding
• Gas Safety and EICR if not current
• Agent onboarding

Common Mistakes That Lead to Refusal

• Applying with LTV above lender limits
• Describing an HMO as a single-family let
• Incomplete insurance — residential buildings cover still in place
• Recent missed payments on the mortgage
• Letting before approval — discovered at remortgage or claim
• Requesting Airbnb / short-term use when policy excludes it

If refused, see bank refused consent to let — your options. A broker can identify lenders with more flexible consent or arrange buy-to-let remortgage.

For more on this topic, see our guide to mortgage rates.

When to Skip Consent and Remortgage Instead

Consider buy-to-let remortgage immediately if:

• You intend to let for more than twelve to twenty-four months
• Rental yield supports BTL stress tests comfortably
• Your lender rarely grants consent or charges heavy loadings
• You are converting to multi-let / HMO strategy

Compare products in HMO mortgage vs residential mortgage and model costs with our HMO mortgage calculator.

After Approval: Keep Records

Store together:

• Consent letter with start/end dates and conditions
• Landlord insurance policy and schedule
• Tenancy agreement matching what you declared
• Safety certificates and deposit protection evidence

Before consent expires, either renew (if lender allows), return to owner-occupation, or remortgage to BTL. Letting beyond expiry without action repeats the breach risk covered in letting without consent to let.

Frequently Asked Questions

Should I use email or phone for consent to let?

Phone to confirm the process, then email or portal for documents — creates an audit trail. Always request written confirmation of approval.

Can my broker apply on my behalf?

Some lenders accept broker submissions; many require direct application from the borrower for consent. Your broker can still advise on wording and alternatives.

Do I tell the lender if rent increases mid-tenancy?

Usually no requirement unless consent conditions specify reporting rent changes. Major tenancy structure changes (e.g. adding sharers) need new approval.

Will consent affect my ability to borrow elsewhere?

Some lenders treat properties on consent as committed expenditure when assessing new residential applications. Disclose consent status on future mortgage applications.

Can I get consent for partial letting?

Whole-property lets are standard. Lodger scenarios while you remain resident follow different rules — confirm with your lender before letting a room.

Next Steps

• Ready to apply? Gather documents and contact the consent-to-let team
• Unsure if consent fits? Read consent to let explained
• Planning HMO instead? Explore HMO mortgages

For help choosing between consent, buy-to-let remortgage, and HMO finance, contact our team.