-16.4% 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.
EPC band not stated — verify the certificate before offering (2030 MEES minimum is band C).
Property research tool — not a regulated financial service. Numbers are point-in-time estimates; how we decide →
Monthly cashflow
−£16K/mo
You top up £16K/mo
Price vs market
Above comparable sales
+306% vs 12 sold
Return · IRR
-16.4%/yr
Loses money over 5 years
Cash to get in
£1.75M
Deposit + fees + refurb
Price £4.10M5-yr return on cash -53%Rent est. £3,100 (£3,000–£3,300)
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 live
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 (£)
Local comp range: £3,000–£3,300/mo · n=6
Financing
DepositYour cash in — the rest is the mortgage25% · £1,025,000
5%100% (cash buy)
Standard 75% LTV for BTL
Mortgage rate5y fixed5.5%
3.0%9.0%
5-year fixed (market average) — 5.50% (as of 2026-05).
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 (£35,582–£66,420 range), VAT-inclusive
Legal + survey (£)
Leasehold flat — £3,125 legal + £1,100 survey
Mortgage fees (£)
2% product fee on £3,075,000 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)£1,749,918
Green = verified data. Amber = market typical. Red = our estimate — verify before offering.
About this propertydescription · rightmove
Description& agent copyRightmove
A rare opportunity to acquire a substantial three-bedroom apartment of approximately 2,289 sq ft, set on the 11th floor of the prestigious Capital Building, Embassy Gardens. Offering exceptional proportions both internally and externally, this is a home perfectly suited to modern London living.
The apartment features a generous open-plan reception space, ideal for both everyday living and entertaining, complemented by a sleek, fully integrated kitchen. All three bedrooms are…
Capital Building, Embassy Gardens, 8 New Union Square, Nine Elms, London, SW11
flat · 3 bed · 3 bath · 2,289 sqft
£4,100,000
est £3,100
1 / 28
0/100
Marginal
No rent data — verify locally before offering.
0.91% Return before costs — around the area average for this property type.
Monthly profit −£15,681/mo at the default 25% deposit @ 5.5% — open the calculator to stress-test.
Price
£4.1M
306% above sold comps
Return before costs
—
est rent £3,100/monot enough comparablesRange £3,000–£3,300/mo (Q1–Q3)
Bedrooms
3
3 bath
Energy rating
—
Energy rating
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What-if calculator
Edit any input — outputs recalc live
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 (£)
Local comp range: £3,000–£3,300/mo · n=6
Financing
DepositYour cash in — the rest is the mortgage25% · £1,025,000
5%100% (cash buy)
Standard 75% LTV for BTL
Mortgage rate5y fixed5.5%
3.0%9.0%
5-year fixed (market average) — 5.50% (as of 2026-05).
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 (£35,582–£66,420 range), VAT-inclusive
Legal + survey (£)
Leasehold flat — £3,125 legal + £1,100 survey
Mortgage fees (£)
2% product fee on £3,075,000 loan + £1,000 booking fee
Tenant profileBeds + postcode heuristicFamily / Rent by the room
Rent by the room feasibilityMin 3 beds for C4 routeFeasible
Comparables
sold within 0.5 mi
Wide · CV 17.2%Med confidence
Loading nearby sold…
Location & transport
Score 100/100
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PropertySchoolsUniversitiesStationsArticle 4
Transport detail not loaded for this property.
Tax & exit
Ltd Co
Tax bandLtd Co 25%
Mortgage-interest tax rule credit£38,438
Annual rental tax£0
CGT yr 5£0 · company level
5y net total-£931,997
Acquisition costs
£1.7M
25% deposit£1,025,000
Stamp duty£610,750
Refurb£47,443
Legal + survey£4,225
Mortgage + broker£62,500
Cash needed£1,749,918
Green = verified data. Amber = market typical. Red = our estimate — verify before offering.
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Description& agent copyRightmove
A rare opportunity to acquire a substantial three-bedroom apartment of approximately 2,289 sq ft, set on the 11th floor of the prestigious Capital Building, Embassy Gardens. Offering exceptional proportions both internally and externally, this is a home perfectly suited to modern London living.
The apartment features a generous open-plan reception space, ideal for both everyday living and entertaining, complemented by a sleek, fully integrated kitchen. All three bedrooms are…