-17.7% 5y IRR — capital outlay disproportionate to returns
No rent comparables — estimate is a rule-of-thumb fallback, not market data. Verify the rent locally before offering.
Property research tool — not a regulated financial service. Numbers are point-in-time estimates; how we decide →
Monthly cashflow
−£14K/mo
You top up £14K/mo
Price
£3.25M
No local sold comps to compare
Return · IRR
-17.7%/yr
Loses money over 5 years
Cash to get in
£1.36M
Deposit + fees + refurb
5-yr return on cash -60%
How we define each return:On price — gross yield = annual rent ÷ purchase price.On cost — net yield ÷ total project cost (price + refurb + fees).On cash — cash-on-cash & ROI ÷ the actual cash you put in (deposit + costs).
Listing seen …
What-if calculator
Edit any input — outputs recalc liveRates as of 20 May 2026
Buy-to-Let. Standard rental on an Assured Shorthold Tenancy. Single household, market rent, paid monthly direct to landlord (or via agent). (hover any strategy tab for pros + cons)
Offer (£)
Monthly rent (£)
No rent data — verify locally
Financing
DepositYour cash in — the rest is the mortgage25% · £812,500
5%100% (cash buy)
Standard 75% LTV for BTL
Mortgage rate5y fixed5.8%
3.0%9.0%
5-year fixed at 75% LTV — 5.75% (as of 2026-05-20).
Mortgage term (years)
Stress rate6.5%
5.0%9.0%
BoE base + 2pp stress (6.5%)
Acquisition costs
Refurb (£)
Per-property refurb estimate from the element rate-card model (£17,966–£33,536 range), VAT-inclusive
Legal + survey (£)
Leasehold flat — £3,125 legal + £1,100 survey
Mortgage fees (£)
2% product fee on £2,437,500 loan + £1,000 booking fee
We don't ingest the NHLE bulk register, so we can't flag listed-building or conservation-area status for this address from our data alone. Use the official registry to verify before exchanging.
Total cash neededdeposit + costs (loan covers the rest)£1,356,679
Green = verified data. Amber = market typical. Red = our estimate — verify before offering.
About this propertydescription · onthemarket
Description& agent copyOnTheMarket
Druce are delighted to present to the market a lateral three bedroom fourth floor apartment situated on Sloane Street in the heart of Knightsbridge.
The spacious and well-balanced accommodation of 1762 Sq Ft includes a large lounge, separate kitchen, three bedrooms and two bathrooms.
Located within a secure mansion block with lift and porter and within moments of Harrods and Hyde Park.
The property offered is offered to the market with no onward chain.
Monthly profit −£13,594/mo at the default 25% deposit @ 5.5% — open the calculator to stress-test.
Price
£3.3M
Return before costs
—
rent unknown
Bedrooms
3
2 bath
Energy rating
—
Energy rating
Run the numbers
Each tab prefills
What-if calculator
Edit any input — outputs recalc liveRates as of 20 May 2026
Buy-to-Let. Standard rental on an Assured Shorthold Tenancy. Single household, market rent, paid monthly direct to landlord (or via agent). (hover any strategy tab for pros + cons)
Offer (£)
Monthly rent (£)
No rent data — verify locally
Financing
DepositYour cash in — the rest is the mortgage25% · £812,500
5%100% (cash buy)
Standard 75% LTV for BTL
Mortgage rate5y fixed5.8%
3.0%9.0%
5-year fixed at 75% LTV — 5.75% (as of 2026-05-20).
Mortgage term (years)
Stress rate6.5%
5.0%9.0%
BoE base + 2pp stress (6.5%)
Acquisition costs
Refurb (£)
Per-property refurb estimate from the element rate-card model (£17,966–£33,536 range), VAT-inclusive
Legal + survey (£)
Leasehold flat — £3,125 legal + £1,100 survey
Mortgage fees (£)
2% product fee on £2,437,500 loan + £1,000 booking fee
Net Monthly profit after tax. Rent + costs compound at their growth rates; mortgage principal amortises year-by-year for repayment loans.
Mortgage paydownRent profitbefore price growth
Full year-by-year breakdown
Year
Gross Rent
Op Costs
Mortgage
Equity Built
Tax
Net
Cumulative
Year 1
£0
£4,693
£158,438
£0
£0
-£163,130
-£163,130
Year 2
£0
£4,833
£158,438
£0
£0
-£163,271
-£326,401
Year 3
£0
£4,978
£158,438
£0
£0
-£163,416
-£489,817
Year 4
£0
£5,128
£158,438
£0
£0
-£163,565
-£653,382
Year 5
£0
£5,281
£158,438
£0
£0
-£163,719
-£817,101
Rent by the roomupside
Tap to expand
Rent by the room conversion upside—▾
Required
Rooms (3+)3 bd
If converted
Gross Rent by the room yield—
What we verified
12 total
4107
Legal & planning4▾
Article 4HMO restriction lookupUnknown
Rent by the room licensingMandatory if 5+ unrelatedCheck LPA
TenureTenure typeLeasehold
HeritageListed building / conservation areaNot stated on the listing
Building condition3▾
EPCPostcode estimate — check the registerNot stated on the listing
EWS1External wall safety (cladding)Not stated on the listing
Refurb costBased on beds + baths + sqftEstimate available
Area3▾
Crimepolice.uk · monthlyChecking…
SchoolsGIAS · OfstedChecking…
FloodEA Flood Map · England onlyChecking…
Investor profile2▾
Tenant profileBeds + postcode heuristicFamily / Rent by the room
Rent by the room feasibilityMin 3 beds for C4 routeFeasible
Comparables
sold within 0.5 mi
Loading nearby sold…
Location & transport
Score 100/100
Loading map…
PropertySchoolsUniversitiesStationsArticle 4
Transport detail not loaded for this property.
Tax & exit
Ltd Co
Tax bandLtd Co 25%
Mortgage-interest tax rule credit£31,688
Annual rental tax£0
CGT yr 5£0 · company level
5y net total-£817,101
Acquisition costs
£1.4M
25% deposit£812,500
Stamp duty£466,250
Refurb£23,954
Legal + survey£4,225
Mortgage + broker£49,750
Cash needed£1,356,679
Green = verified data. Amber = market typical. Red = our estimate — verify before offering.
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Description& agent copyOnTheMarket
Druce are delighted to present to the market a lateral three bedroom fourth floor apartment situated on Sloane Street in the heart of Knightsbridge.
The spacious and well-balanced accommodation of 1762 Sq Ft includes a large lounge, separate kitchen, three bedrooms and two bathrooms.
Located within a secure mansion block with lift and porter and within moments of Harrods and Hyde Park.
The property offered is offered to the market with no onward chain.