11.9% Rent by the room return before costs (net 6.20% after CapEx + bills) — conversion play
Stress Rent-covers-mortgage check PASS at 6.5% rate stress — lender-friendly
Why to be cautious
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
+£13/mo
Barely breaks even each month
Price
£150K
No local sold comps to compare
Return · IRR
0.9%/yr
Modest annualised return
Cash to get in
£121K
Deposit + fees + refurb
Return before costson price · Rent by the room11.95%5-yr return on cash 4%Rent est. £987 (£882–£1,104)
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: £882–£1,104/mo · n=13
Financing
DepositYour cash in — the rest is the mortgage25% · £37,500
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 (£53,130–£99,176 range), VAT-inclusive
Legal + survey (£)
Standard house — £1,100 legal + £600 survey
Mortgage fees (£)
2% product fee on £112,500 loan + £1,000 booking fee
+£336/mo cash flow vs Rent it out if converted to Rent by the room
19.20% Return before costs on price converted vs 7.90% as-is
£150k → 4-bed HMO @ ~£466/room: £1,842 pcm gross, ~£1,052 pcm net (7.4% net on £170k all-in incl. ~£10k works)
medium confidence
Unlocks ~£5,976/yr extra rent
3 → 4 lettable rooms
Potential, not guaranteed (subject to planning + regs). Estimate from the floorplan (kitchen size assumed) — verify room sizes against the floorplan before offering.
How we calculated this
floorplan shows 5 habitable rooms (3 beds + 2 reception(s)); convert 1 spare room(s) to bedrooms, keeping one reception as the lounge → up to 4 lettable rooms; sized to Swansea adopted standard (6.5/10.2 m²; Swansea HMO Licensing Policy 2020 App.A Amenity Standards); adds ~£498/mo; loft conversion may add 1-2 further rooms (subject to head height/planning — not counted); Rent Smart Wales registration required; check council additional-licensing scheme; Wales: planning permission required for HMO change of use (no C3→C4 permitted development)
Pro members see the floorplan with every convertible room outlined in green. Verify room sizes before offering.
3 → 4 bed HMO+1 single
Wales: planning required for HMO use
✓Sized to Swansea's adopted HMO standards
Projections use documented assumptions (local room rates, typical conversion costs, 75% LTV at 5.5%, indicative regional valuation yields) and each council’s published HMO standards. Not financial advice. Verify room sizes, licensing and planning with the council and a surveyor before purchase.
Room mix (3 lettable rooms)
2× Double @ £513/mo1× Single @ £468/mo
≈ £1,494/mo gross room income
As-is Rent it out
Monthly profit+£10
Return before costson price7.90%
Cash needed£49,398
If converted to Rent by the room
Monthly profit+£346
Return before costson price19.20%
Cash needed£65,398
Δ vs Rent it outMonthly profit+£336
+1 room (4 total)
Monthly profit+£107
Return before costson price15.94%
Cash needed£75,398
Extra rent+£498/mo
Show conversion detail
Conversion cost estimate
£44,000
Range: £38,000 – £52,000
Fire safety, plumbing, partitioning, licensing.
Rates as of Apr 2026
£48,006–£90,000full refurb + room split
⚠️ Capped at 60% of £150,000 asking (£90,000). Raw model: £54,690–£102,530. Verify with a surveyor before offering.
What's in this cost
Kitchen£7,584–£15,168
2 × bathroom£10,007–£18,346
Rewire£3,476–£6,083
Replumb£2,607–£5,214
Windows£8,690–£15,642
Paint + decor£6,083–£11,297
Flooring£9,559–£18,249
Based on 15 HMO comps within 4.3 km
Comparables
sold within 0.5 mi
Loading nearby sold…
Location & area intelligence
Transport 10 / 100
No coordinates available — verify address with the agent.
Transport score10 / 100
Schools & catchment4 schools nearby
Nearby schoolsOfsted-rated, nearest first4 of 5
Gorseinon Primary
Not applicable · Welsh establishment · SA4 4BN
Not rated
Pengelli Primary School
Not applicable · Welsh establishment · SA4 4GY
Not rated
Penyrheol Comprehensive School
Not applicable · Welsh establishment · SA4 4FG
Not rated
Penyrheol Primary School
Not applicable · Welsh establishment · SA4 4LY
Not rated
Ofsted · postcode-area match. Catchment areas vary year to year — verify with the local council before relying for school admissions.
Tax treatment
£75/yr kept
Annual gross rent£11,844
Section 24 credit£0
Annual tax due£124
Post-tax Monthly profitannual£75
Exit costs
£4,576 after CGT
Projected sale price (5y · 2%/yr growth)£165,612
Capital gain (pre-CGT)£15,612
Sale costs (~2.5%)£4,140
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 profitafter CGT£4,576
Rates as of Oct 2024
Acquisition costs
£121,290cash needed
Purchase price£150,000
Deposit (25%)£37,500
Stamp duty+5% additional-property surcharge£8,000
Refurb£70,840
Legal + survey£1,700
Mortgage fees£3,250
Total cash neededdeposit + costs (loan covers the rest)£121,290
Green = verified data. Amber = market typical. Red = our estimate — verify before offering.
About this propertydescription · rightmove
Description& agent copyRightmove
A traditional bay-fronted three bedroom semi-detached home in need of full renovation, offering excellent potential to create a long-term home.
The accommodation is set over two floors with an entrance porch, hallway, living room, sitting/dining room, kitchen & shower room on the ground floor; and three bedrooms & a four-piece bathroom to the first floor.
Externally the property benefits from a large flat garden, detached garage and driveway.
Accommodation
Ground Floor
P…
Listing metarightmove · Annie Rees Estates, Powered by eXp UK
Stress Rent-covers-mortgage check PASS at 6.5% rate stress
7.90% Return before costs — above-market
11.9% Rent by the roomReturn before costs — conversion play
Price
£150K
Return before costs (best)
11.95%
Rent by the room
Bedrooms
3
2 bath
Energy rating
—
Energy rating
Run the numbers
Each tab prefills
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: £882–£1,104/mo · n=13
Financing
DepositYour cash in — the rest is the mortgage25% · £37,500
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 (£53,130–£99,176 range), VAT-inclusive
Legal + survey (£)
Standard house — £1,100 legal + £600 survey
Mortgage fees (£)
2% product fee on £112,500 loan + £1,000 booking fee
Short-let (SA) context284 active short-lets nearby
Short-let market context
Local nightly-rate and occupancy benchmarks for this postcode.
284 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
£11,844
£4,158
£7,031
£0
£124
£531
£531
Year 2
£12,199
£4,283
£7,031
£0
£168
£717
£1,248
Year 3
£12,565
£4,411
£7,031
£0
£213
£910
£2,158
Year 4
£12,942
£4,544
£7,031
£0
£260
£1,107
£3,265
Year 5
£13,331
£4,680
£7,031
£0
£308
£1,311
£4,576
Rent by the roomupside
Tap to expand
Rent by the room conversion upside—▾
Required
Rooms (3+)3 bd
Conversion£26,000
If converted
Gross / mo£1,494
Gross Rent by the room yield11.95%
What we verified
12 total
4005
Legal & planning4▾
Article 4HMO restriction lookupUnknown
Rent by the room licensingMandatory if 5+ unrelatedCheck LPA
TenureTenure typeFreehold
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 · monthlyNo location
SchoolsGIAS · OfstedNo postcode
FloodEA Flood Map · England onlyNo location
Investor profile2▾
Tenant profileBeds + postcode heuristicUnknown
Rent by the room feasibilityMin 3 beds for C4 routeFeasible
Comparables
sold within 0.5 mi
Loading nearby sold…
Tax & exit
Ltd Co
Tax bandLtd Co 25%
Mortgage-interest tax rule credit£1,406
Annual rental tax£38
CGT yr 5£0 · company level
5y net total£4,576
Acquisition costs
£121K
25% deposit£37,500
Stamp duty£8,000
Refurb£70,840
Legal + survey£1,700
Mortgage + broker£3,250
Cash needed£121,290
Green = verified data. Amber = market typical. Red = our estimate — verify before offering.
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Description& agent copyRightmove
A traditional bay-fronted three bedroom semi-detached home in need of full renovation, offering excellent potential to create a long-term home.
The accommodation is set over two floors with an entrance porch, hallway, living room, sitting/dining room, kitchen & shower room on the ground floor; and three bedrooms & a four-piece bathroom to the first floor.
Externally the property benefits from a large flat garden, detached garage and driveway.