6.32% return before costs — verify the rent + comps locally.
Why it works
Why to be cautious
Service charge unknown — could swing £100-300/mo
Monthly profit −£213/mo — significantly negative — real recurring drain
-1.8% 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
−£213/mo
You top up £213/mo
Price
£850K
No local sold comps to compare
Return · IRR
-1.8%/yr
Loses money over 5 years
Cash to get in
£315K
Deposit + fees + refurb
Return before costson price6.32%5-yr return on cash 3%Rent est. £4,475 (£3,880–£5,161)
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 (£)
Local comp range: £3,880–£5,161/mo · n=88
Financing
DepositYour cash in — the rest is the mortgage25% · £212,500
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 (£8,073–£15,070 range), VAT-inclusive
Legal + survey (£)
Leasehold flat — £2,500 legal + £850 survey
Mortgage fees (£)
2% product fee on £637,500 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)£315,364
Green = verified data. Amber = market typical. Red = our estimate — verify before offering.
About this propertydescription · onthemarket
Description& agent copyOnTheMarket
JOHNS&CO proudly presents this spacious, two-bedroom apartment in the highly sought-after Riverlight Quay Development in Nine Elms.
Located on a high floor, this stylish property boasts a bright open-plan kitchen and living area leading to a private balcony with partial river views. The apartment offers ample storage throughout, with the master bedroom featuring a luxurious ensuite bathroom, making it an ideal choice for couples or professional sharers. Residents of Riverlig…
Riverlight Quay, Nine Elms, London, SW11, London, SW11
flat · 2 bed · 2 bath
£850,000
est £4,475 · 6.32% gross
1 / 5
13/100
Marginal
6.32% — verify the rent + comps locally.
6.32% Return before costs — around the area average for this property type.
Monthly profit −£213/mo at the default 25% deposit @ 5.5% — open the calculator to stress-test.
Price
£850K
Return before costs
6.32%
est rent £4,475/monot enough comparablesRange £3,880–£5,161/mo (Q1–Q3)
Bedrooms
2
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 (£)
Local comp range: £3,880–£5,161/mo · n=88
Financing
DepositYour cash in — the rest is the mortgage25% · £212,500
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 (£8,073–£15,070 range), VAT-inclusive
Legal + survey (£)
Leasehold flat — £2,500 legal + £850 survey
Mortgage fees (£)
2% product fee on £637,500 loan + £1,000 booking fee
Short-let (SA) context274 active short-lets nearby
Short-let market context
Local nightly-rate and occupancy benchmarks for this postcode.
274 active short-let listings in this postcode
Year-by-year Monthly profit (5-yr horizon)
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
£53,700
£12,748
£41,438
£0
£0
-£485
-£485
Year 2
£55,311
£13,130
£41,438
£0
£141
£603
£118
Year 3
£56,970
£13,524
£41,438
£0
£382
£1,627
£1,745
Year 4
£58,679
£13,930
£41,438
£0
£629
£2,683
£4,428
Year 5
£60,440
£14,347
£41,438
£0
£884
£3,771
£8,199
Rent by the roomupside
Tap to expand
Rent by the room conversion upside—▾
Required
Rooms (3+)2 bd
If converted
Gross Rent by the room yield—
What we verified
12 total
2307
Legal & planning4▾
Article 4HMO restriction lookupUnknown
Rent by the room licensingMandatory if 5+ unrelatedN/A
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 let
Rent by the room feasibilityMin 3 beds for C4 routeBelow threshold
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£8,288
Annual rental tax£0
CGT yr 5£0 · company level
5y net total£8,199
Acquisition costs
£315K
25% deposit£212,500
Stamp duty£75,000
Refurb£10,764
Legal + survey£3,350
Mortgage + broker£13,750
Cash needed£315,364
Green = verified data. Amber = market typical. Red = our estimate — verify before offering.
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Description& agent copyOnTheMarket
JOHNS&CO proudly presents this spacious, two-bedroom apartment in the highly sought-after Riverlight Quay Development in Nine Elms.
Located on a high floor, this stylish property boasts a bright open-plan kitchen and living area leading to a private balcony with partial river views. The apartment offers ample storage throughout, with the master bedroom featuring a luxurious ensuite bathroom, making it an ideal choice for couples or professional sharers. Residents of Riverlig…