Skip to main contenthow this is calculated →
Year 5 disposal
⊞ View all 27
0/ 100
Weak
No rent data on file — verify locally before offering.
Why it works
Why to be cautious
- Monthly profit −£16,860/mo — heavily negative — needs monthly capital injection
- -17.5% 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
−£17K/mo
You top up £17K/mo
Price
£4.25M
No local sold comps to compare
Return · IRR
-17.5%/yr
Loses money over 5 years
Cash to get in
£1.77M
Deposit + fees + refurb
5-yr return on cash -57%
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).
What-if calculator
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% · £1,062,500
Standard 75% LTV for BTL
Mortgage rate5y fixed5.5%
5-year fixed (market average) — 5.50% (as of 2026-05).
Mortgage term (years)
Stress rate6.5%
BoE base + 2pp stress (6.5%)
Acquisition costs
Refurb (£)
Per-property refurb estimate from the element rate-card model (£1,013–£1,890 range), VAT-inclusive
Legal + survey (£)
Standard house — £2,400 legal + £1,300 survey
Mortgage fees (£)
2% product fee on £3,187,500 loan + £1,000 booking fee
Running costs
Management10%
Typical BTL agency rate
Void weeks
Typical voids for BTL
Insurance (£/mo)
Typical BTL building+landlord cover for £400K+
Maintenance (£/mo)
Detached: £100/mo proxy (more roof + grounds)
Leasehold costs
Result · Rent it out
Monthly profit
-£16,860
after mortgage, operating costs & tax
Rent in£0/mo
Where it goes
£16,602Mortgage
Outgoings exceed rent — you top up £16,860/mo
Mortgage£16,602
Costs£259
Maintenance£100
Insurance£40
Voids + council tax£15
Ltd co. accounts£104
Tax—
Shortfall−£16,860
Returns
Return before costs on price0.00%
Cash return on cash-11.44%
Gross margin-£259
Cash needed£1,768,550
Monthly profit paybackn/a (monthly loss)
Data confidence
Lender stress test
Rent-covers-mortgage check @ stress0.00
Rent-covers-mortgage check FAIL · stress 6.5% (need ≥ 1.45)
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 | £0 | £3,105 | £199,219 | £0 | £0 | -£202,324 | -£202,324 |
| Year 2 | £0 | £3,198 | £199,219 | £0 | £0 | -£202,417 | -£404,741 |
| Year 3 | £0 | £3,294 | £199,219 | £0 | £0 | -£202,513 | -£607,253 |
| Year 4 | £0 | £3,393 | £199,219 | £0 | £0 | -£202,612 | -£809,865 |
| Year 5 | £0 | £3,495 | £199,219 | £0 | £0 | -£202,713 | -£1,012,579 |
Disposal gain (gross)-£316,265
CGT£0
Net Disposal proceeds£4,575,035
What we verified
What we verified
50065 ok · 0 caution · 0 fail · 6 unknown
Legal & planning
LeaseholdFreehold
Tenure & planningFreehold
Legal & planning
2 checks- TenureUnknown
- Lease lengthUnknown
Building condition
Energy ratingUnknown
EPC& 2030 deadlineEPC register
EPC band not available in the listing. The 2030 MEES minimum is band C — verify the certificate before offering.
EPC band from listing · verify certificate before exchanging
Find EPC certificate →Cladding safety certificateNot stated on the listing
HeritageNot stated on the listing
Heritage& planning constraintsNHLE register
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.
Area
Flood riskChecking…
FloodriskEA
Crime riskChecking…
Crimeriskpolice.uk
SchoolsNo postcode
Schools& Ofsted catchmentGIAS register
No schools indexed for this postcode sector.
Investor
Tenant profileFamily let
Tenant profilelikely cohort6 bed
Primary profile
Family let
Secondary profile
HMO / sharers
Nearest university
for student-let assessment
Queen Mary · 14.4 km
Reason
6-bed house in a suburban area — family-let demand dominates; larger property may also work as a sharer HMO.
Heuristic from postcode + bedrooms + nearest-university distance · verify locally
Refurb costEstimate ready
Refurb cost& works budgetQ1 2026 rates
New kitchen + bathroom + light replumb + decor.
Total estimate
6-bed · 4-bath · 8000 sqft
£161k–£307k
£ per sqft
building cost only
£20–£38
Per-item breakdown (4 lines)
- Kitchen · Full unit replacement£3,840–£8,640
- 4 × bathroom · Full strip + retile£13,300–£26,600
- Paint + decor£56,000–£104,000
- Flooring · Carpet on bedrooms + LVT/laminate downstairs£88,000–£168,000
Guide rates · UK May 2026
Tier-based bands — get a builder quote before exchanging.
Rent by the room licensingMandatory
Price & sale history0d on marketno cuts yet
Strategy matrix
Rent by the room wins — -£15,150/mo · £1,696/mo ahead of Council lease (after room-conversion)
| Strategy | Return before costs on price | Monthly profit | Cash needed | 5y Return on your cash on cash | Risk | Feasibility |
|---|---|---|---|---|---|---|
| Rent it out | 0.00% | -£16,860 | £1,768,550 | -57.3% | Low | Feasible |
| Housing-benefit rent | 0.00% | -£16,875 | £1,768,550 | -57.3% | Med | Feasible |
| Council lease | 0.00% | -£16,846 | £1,768,550 | -57.2% | Low | Feasible |
| Refurb & refinance | 0.00% | -£16,860 | £1,981,590 | -51.1% | Med | Feasible |
| Short-stay let / Airbnb | — | — | — | — | — | Disabledno local short-let data |
| Buy, improve & sell | 0.00% | -£244 | £4,891,840 | 4% | Med | Feasible |
| ⭐ Rent by the room | 1.02% | -£15,150 | £1,768,550 | -50.1% | — | Feasible |
Ready to move on this deal?
Generates an offer pack with your numbers & sources — take it to the agent.
Pro analysis — outcome range, stress tests & portfolio impact
Local lettings demanddays-to-let · supply now · trend
Rent by the room conversion upside
+£1,216/mo cash flow vs Rent it out if converted to Rent by the room
0.68% Return before costs on price converted vs 0.00% as-is
As-is Rent it out
Monthly profit-£16,804
Return before costs on price0.00%
Cash needed£1,074,398
If converted to Rent by the room
Monthly profit-£15,589
Return before costs on price0.68%
Cash needed£1,090,398
Δ vs Rent it out Monthly profit+£1,216
Show conversion detail
Conversion cost estimate
£3,000
Range: £2,000 – £5,000
Fire safety, plumbing, partitioning, licensing.
Rates as of Apr 2026
£311,440–£579,080full refurb + room split
What's in this cost
- Kitchen£8,640–£17,280
- 4 × bathroom£22,800–£41,800
- Rewire£32,000–£56,000
- Replumb£24,000–£48,000
- Windows£80,000–£144,000
- Paint + decor£56,000–£104,000
- Flooring£88,000–£168,000
Comparables
sold within 0.5 miLoading nearby sold…
Location & area intelligence
Transport score90 / 100
On the map
- Registered HMOs
- Approved HMO conversions
- Pending HMO applications
Tax treatment
Annual gross rent£0
Section 24 credit£0
Annual tax due£0
Post-tax Monthly profit annual-£202,324
Exit costs
Projected sale price (5y · 2%/yr growth)£4,692,343
Capital gain (pre-CGT)£442,343
Sale costs (~2.5%)£117,309
CGT due (Ltd Co 25%)£0
No personal CGT — the gain is taxed at the company level (corporation tax) when the SPV disposes of the property.
Net 5y Monthly profit after CGT-£1,012,579
Rates as of Oct 2024
Acquisition costs
£1,768,550cash neededPurchase price£4,250,000
Deposit (25%)£1,062,500
Stamp duty+5% additional-property surcharge£636,250
Refurb£1,350
Legal + survey£3,700
Mortgage fees£64,750
Total cash neededdeposit + costs (loan covers the rest)£1,768,550
Green = verified data. Amber = market typical. Red = our estimate — verify before offering.
About this propertydescription · onthemarket
Description& agent copyOnTheMarket
This truly stunning landmark Edwardian residence was designed by renowned local architect Ernest Newton and built in 1904.
Arranged over three floors, the property offers an exceptional level of accommodation extending to just over 8,000 sq ft, combining period grandeur with beautifully considered modern living spaces.
Set behind a electronically controlled gates, the property is discreetly set back from the road, with a deep private driveway providing ample off road parkin…
Floor plans
Listing metaonthemarket · Langford Russell - Chislehurst
About this listing
OnTheMarketPrice history
No price history available.
Monthly profit
−£16,860
Cash needed
£1.8M
Return after costs
-11.44%
IRR
-17.53%
Chislehurst Road, Bromley, Bromley
detached · 6 bed · 4 bath · 8,000 sqft
£4,250,000
1 / 27
0/100
Marginal
No rent data — verify locally before offering.
Monthly profit −£16,860/mo at the default 25% deposit @ 5.5% — open the calculator to stress-test.
Price
£4.3M
Return before costs
—
rent unknown
Bedrooms
6
4 bath
Energy rating
—
Energy rating
Run the numbers
What-if calculator
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% · £1,062,500
Standard 75% LTV for BTL
Mortgage rate5y fixed5.5%
5-year fixed (market average) — 5.50% (as of 2026-05).
Mortgage term (years)
Stress rate6.5%
BoE base + 2pp stress (6.5%)
Acquisition costs
Refurb (£)
Per-property refurb estimate from the element rate-card model (£1,013–£1,890 range), VAT-inclusive
Legal + survey (£)
Standard house — £2,400 legal + £1,300 survey
Mortgage fees (£)
2% product fee on £3,187,500 loan + £1,000 booking fee
Running costs
Management10%
Typical BTL agency rate
Void weeks
Typical voids for BTL
Insurance (£/mo)
Typical BTL building+landlord cover for £400K+
Maintenance (£/mo)
Detached: £100/mo proxy (more roof + grounds)
Leasehold costs
Result · Rent it out
Monthly profit
-£16,860
after mortgage, operating costs & tax
Rent in£0/mo
Where it goes
£16,602Mortgage
Outgoings exceed rent — you top up £16,860/mo
Mortgage£16,602
Costs£259
Maintenance£100
Insurance£40
Voids + council tax£15
Ltd co. accounts£104
Tax—
Shortfall−£16,860
Returns
Return before costs on price0.00%
Cash return on cash-11.44%
Gross margin-£259
Cash needed£1,768,550
Monthly profit paybackn/a (monthly loss)
Data confidence
Lender stress test
Rent-covers-mortgage check @ stress0.00
Rent-covers-mortgage check FAIL · stress 6.5% (need ≥ 1.45)
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 | £0 | £3,105 | £199,219 | £0 | £0 | -£202,324 | -£202,324 |
| Year 2 | £0 | £3,198 | £199,219 | £0 | £0 | -£202,417 | -£404,741 |
| Year 3 | £0 | £3,294 | £199,219 | £0 | £0 | -£202,513 | -£607,253 |
| Year 4 | £0 | £3,393 | £199,219 | £0 | £0 | -£202,612 | -£809,865 |
| Year 5 | £0 | £3,495 | £199,219 | £0 | £0 | -£202,713 | -£1,012,579 |
Rent by the room upside
What we verified
5006
Legal & planning▾
Article 4HMO restriction lookupUnknown
Rent by the room licensingMandatory if 5+ unrelatedMandatory
TenureTenure typeFreehold
HeritageListed building / conservation areaNot stated on the listing
Building condition▾
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
Area▾
Crimepolice.uk · monthlyChecking…
SchoolsGIAS · OfstedNo postcode
FloodEA Flood Map · England onlyChecking…
Investor profile▾
Tenant profileBeds + postcode heuristicRent by the room / sharers
Rent by the room feasibilityMin 3 beds for C4 routeFeasible
Comparables
sold within 0.5 miLoading nearby sold…
Location & transport
Tax & exit
Tax bandLtd Co 25%
Mortgage-interest tax rule credit£39,844
Annual rental tax£0
CGT yr 5£0 · company level
5y net total-£1,012,579
Acquisition costs
25% deposit£1,062,500
Stamp duty£636,250
Refurb£1,350
Legal + survey£3,700
Mortgage + broker£64,750
Cash needed£1,768,550
Green = verified data. Amber = market typical. Red = our estimate — verify before offering.
Make an offer
Pro analysis — outcome range, stress tests & portfolio impact
Your notes
Description& agent copyOnTheMarket
This truly stunning landmark Edwardian residence was designed by renowned local architect Ernest Newton and built in 1904.
Arranged over three floors, the property offers an exceptional level of accommodation extending to just over 8,000 sq ft, combining period grandeur with beautifully considered modern living spaces.
Set behind a electronically controlled gates, the property is discreetly set back from the road, with a deep private driveway providing ample off road parkin…
Floor plans
Listing
Sources: Rightmove · HM Land Registry · Ofsted · EA Flood Zones
Estimates not financial advice
Estimates not financial advice