A mortgage between £1 million and £3 million sits in a different lender market from a standard residential loan. The high street is still in the picture, but it tightens above £2m. Specialist high net worth lenders take over from there. Private banks engage from £1m up where there is an asset relationship. The right answer depends on you, your property and your income picture.
Fox Davidson arranges large residential mortgages for high net worth individuals, high earners and clients with complex income across the UK from our office in Bristol. We have been doing this since 2013. Below is how the £1m to £3m bracket actually works in 2026, the lender categories that compete in it, and the cases we see most often.
Loan size dynamics
How does a £1m to £3m mortgage differ from a standard residential mortgage?
A standard residential mortgage is priced from a rate sheet against an automated affordability calculation. A mortgage between £1m and £3m is individually underwritten in most cases. The lender looks at the property, the income, the asset position outside salary, the route to repayment, and the borrower’s wider financial picture. Pricing reflects all of those.
The practical difference for you is that the answer is rarely a hard yes or no. It is a conversation, sometimes more than one, between the broker and the underwriter. The case is built before it is submitted. Where a standard application is largely a paperwork exercise, a £1m plus application is presentation and underwriting in equal measure.
What we have found over the last few years is that the borrowers who get the best outcomes are not necessarily the highest earners. They are the ones whose case has been put together properly. Same income, same property, different result.
High street tightening
How does the high street tighten between £1m and £3m?
The high street tightens in three places. None of them are obvious from the headline rate.
Affordability multiples fall as loan size rises. A high street lender that quotes 4.49 times income at £400,000 will often drop to 4.0 times or lower at £2m, with steeper stress tests applied above that. The headline LTI on the website is rarely the LTI you actually qualify for at the top of the bracket.
Deposit requirements move up. At £1m, most high street lenders are comfortable with a 25% deposit. At £2m, several push to 30%. At £3m, the high street is broadly capped at 35% deposit, and many lenders require 40% or more.
Property type sensitivities start to bite. A 5-acre garden, a Grade II listing, an annex used as a separate dwelling, a thatched roof. None of these matter at £600,000. All of them narrow the lender list materially at £2m.
The combined effect is that a borrower who would have been a clean case at £700,000 becomes a marginal case at £2m on the same income.
Lender categories
Which lenders lend between £1m and £3m in 2026?
Three lender categories compete in this bracket in 2026. Each works differently.
High street lenders with large loan desks. Several high street lenders operate dedicated large loan desks for cases above £1m. The desk underwrites individually, applies less rigid LTI, and typically accepts complex income better than the standard branch network. Pricing is competitive on standard cases. The trade-off is that the desk has its own appetite, which changes quarterly and is not always visible on the website.
Specialist high net worth lenders. A small group of around 6 to 8 lenders that underwrite individually for clients meeting the FCA HNW definition (£300,000 or more in annual income, or £3 million or more in net assets,). They reach 5 to 6 times income on individually underwritten cases. Useful where income is the lever rather than assets.
Private banks. A range of full private banks operate in this bracket. AUM-linked at this loan size, typically £500,000 to £1 million of investable assets at the lower end of the bracket, more at £3m. Lending is priced as part of the wider relationship. Pricing can be very competitive on rate. The trade-off is the AUM commitment.
The right route depends on your asset picture, your existing relationships, and the size and complexity of the loan. Often we find the most cost-effective route is not the obvious one.
Income multiples
What income multiples are available between £1m and £3m?
The headline ranges in 2026. High street large loan desks reach 4.0x to 5.0x income. Specialist HNW lenders reach 5.0x to 5.5x as standard, with 6.0x in selected cases. Private banks under the FCA high net worth definition reach 6x and above, usually uncapped against the wider relationship.
A useful rule of thumb. At £1m loan size, a 4.5 times income multiple needs around £222,000 of income. At £2m, you need around £444,000. At £3m, around £667,000.
The high street will reach those numbers on strong PAYE income with bonus history. Where the friction starts is when the income is variable, self-employed or partnership-structured. That is where the specialist lender or private bank introduction stops being optional.
Indicative ranges only, confirmed at application.
Interest only
How does interest only work for mortgages between £1m and £3m?
Interest only is widely available in this bracket. Most lenders that engage between £1m and £3m offer interest only, part interest only, or full capital and interest. The lender wants a clear repayment story. Acceptable repayment vehicles include sale of the property at end of term where a downsize is planned, sale of other property held as security or unencumbered, investment portfolios held outside pension wrappers, pension lump sums where the term aligns with retirement age, anticipated bonus accumulation evidenced by a credible recent history, and business sale proceeds supported by an offer or planned exit.
Vague intent does not work. The repayment vehicle has to stand up to a clean conversation with the underwriter, and most lenders will ask for documentary evidence at offer stage.
Property types
Which property types narrow the lender list above £1m?
The property itself often dictates the lender list at this loan size. The categories that narrow the panel are listed buildings (Grade I or Grade II), acreage above 5 acres, annexes used as separate dwellings, equestrian facilities or stables, non-standard construction (timber frame, steel frame, thatch, concrete), and significant outbuildings or commercial elements on the title.
Specialist HNW lenders are comfortable with most of these. The high street is selectively comfortable. Private banks treat each on its own merits. If you are buying a 16th-century listed farmhouse with 12 acres, the lender shortlist is materially shorter than for a new-build townhouse at the same price. We work that out before submitting anything.
Deposit
What deposit do you need for a £1m to £3m mortgage?
Indicative deposit ranges in 2026, by lender type. High street large loan desks expect 20% to 35% depending on loan size and property type. Specialist HNW lenders sit at 15% to 30%, with selected lenders accepting lower with strong asset cover. Private banks typically expect 25% to 35%, although asset-backed structures can reduce this.
The headline minimum is one part of the picture. The actual deposit requirement reflects the property type, the income picture and the LTV the lender is comfortable underwriting on the case. We test this before quoting.
Timeline
How long does a £1m to £3m mortgage take to arrange?
The honest answer on a £1.5m purchase is 6 to 8 weeks from agreement in principle to completion when everything runs cleanly. A £3m purchase, 8 to 10 weeks. The variables are the valuation (a full surveyor visit is standard at this size, not a desktop; allow 5 to 10 working days for the survey to be booked and reported), the legal title (listed buildings, leasehold flats with short leases, rural properties with complex titles all add time), and the underwriting (specialist lenders and private banks underwrite individually, which is sometimes faster than the high street but rarely instant).
Faster is possible. We have completed £2m residential cases in 4 weeks where the lender was chosen sensibly and the income story was prepared in advance. It is not standard.
Rates
What rates apply to mortgages between £1m and £3m in 2026?
Rates in 2026 sit broadly across these ranges, indicative only and subject to lender criteria, individual circumstances and product structure. High street large loan desks at 60% LTV start from base plus 0.7% on a 5-year fixed. Specialist HNW lenders at 70% LTV start from base plus 1.0% on a 5-year fixed. Private banks at 60% LTV with AUM relationship start from base plus 0.5% on a 5-year fixed.
£5m comparison
How does a £1m to £3m mortgage compare to a £5m+ mortgage?
The £5m plus market is a different conversation again. We cover it in our complete £5m mortgages 2026 guide. The short version. Above £5m, the high street is largely off the field. Specialist HNW lenders are still active. Private banks are the dominant route. Pricing is set by the asset relationship more than the rate sheet. LTI in the conventional sense becomes a less useful measure than total wealth coverage.
The £1m to £3m bracket is the entry point to all of that. Most clients we work with at £5m plus had a £1m to £3m mortgage first. The case file from the smaller mortgage is often the foundation for the larger one.
Case packaging
How is the case prepared for an underwriter at this size?
The case prepared for a £1m plus underwriter contains more than the application form. It contains the income story, the property story and the repayment story, all written in a form the underwriter can read in 10 minutes.
For income. The contract of employment, last three months of payslips, P60 covering the last full tax year, written confirmation of bonus history. For partners, partnership accounts and capital account schedule. For self-employed, last two years of accounts, SA302s and tax year overviews. For variable income, a clear narrative on consistency and trajectory.
For the property. The listing, the title, any restrictive covenants or unusual title features flagged in advance. For listed properties, the listing entry from Historic England attached to the file.
For the repayment story. A clear paragraph on intent, supporting evidence, and any contingency.
The cases we find hardest to place are not complex income. They are properties with title issues the borrower did not flag. Get the title questions out early and the rest of the case runs.
Worked example
£1.6m purchase, £1.2m loan
A Bristol family. Combined income £320,000. £400,000 deposit available. Looking at a £1.6m Georgian townhouse in Clifton.
The high street view. The £1.2m loan at 75% LTV is comfortably within high street appetite for the size. Affordability on £320,000 of joint income at 4.5 times reaches £1.44m. Approved on standard terms, likely on a 5-year fixed in the 4.4% to 4.7% range subject to product availability.
Where it gets interesting. One borrower is a 4 PQE solicitor with £180,000 base and £40,000 bonus three years running. The other is a self-employed designer with two years of accounts. The high street treats the bonus at 50% and the self-employed income at the lower of the two years. Recognised income drops from £320,000 to around £250,000. LTI at 4.49 reaches £1.122m. The £1.2m loan now sits outside the high street’s reach.
The specialist view. A specialist HNW lender takes the bonus at 100% over a three-year average and the self-employed income at the higher year. Recognised income returns to around £320,000. The case is approved at 4.5 to 5 times income. The £1.2m loan goes through. Same purchase, same borrowers, different conversation.
Worked example
£2.8m purchase, £2m loan
A Cotswolds buyer. Single applicant. Tax partner at a Big Four firm. Drawings of £450,000 over the last two years. Investable assets of £1.2m. Looking at a £2.8m Grade II listed property with 8 acres.
The high street view. The £2m loan size sits at the upper edge of high street appetite. Partnership drawings need a lender that reads accountants’ partnership accounts properly. Listed status and 8 acres narrow the list further. Realistic answer: declined or under-offered.
The specialist HNW view. The lender accepts partnership drawings at full inclusion at 4.5 to 5 times. Recognised income £450,000, which supports the £2m loan with margin. Listed status and acreage acceptable. Pricing in the 4.5% to 4.9% range on a 5-year fixed.
The private bank view. £1.2m of investable assets sits at the lower end of the AUM threshold. The bank prices the mortgage against the asset relationship, sometimes at a margin lower than the specialist HNW lender. The trade-off is the AUM commitment. The right answer depends on whether you want the asset relationship.
FAQs
£1m to £3m mortgages: frequently asked questions
Rates indicative as of April 2026, subject to lender criteria, individual circumstances and property assessment. Your home or property may be repossessed if you do not keep up repayments on your mortgage.
Speak to a large mortgage specialist
Fox Davidson arranges residential mortgages between £1m and £3m for clients across the UK. If you are looking at a purchase or remortgage in this bracket and the high street has under-offered, we arrange these cases every week.