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
−$5K/mo
You top up $5K/mo
Price
$795K
No local sold comps to compare
Return · IRR
—
Not modelled
Cash to get in
$284K
Deposit + fees + refurb
5-yr return on cash -117%
How we define each return:On price — gross yield = annual rent ÷ purchase price.On cost — net yield ÷ total project cost (price + refurb + fees).On cash — cash-on-cash & ROI ÷ the actual cash you put in (deposit + costs).
Listing seen …
What-if calculator
Edit any input — outputs recalc live
Buy-to-Let. Standard rental on an Assured Shorthold Tenancy. Single household, market rent, paid monthly direct to landlord (or via agent). (hover any strategy tab for pros + cons)
Offer ($)
Monthly rent ($)
No rent data — verify locally
Financing
DepositYour cash in — the rest is the mortgage25% · $198,750
5%100% (cash buy)
Standard 75% LTV for rental
Mortgage rate5y fixed7.0%
3.0%9.0%
5-year fixed (market average) — 7.00% (as of 2026-05).
Mortgage term (years)
Stress rate8.0%
5.0%9.0%
Fed base + 2pp stress (8.0%)
Acquisition costs
Refurb ($)
Tiered estimate (full refurb): $42,690–$80,380 range from $/sqft + per-room model
Legal + survey ($)
Standard house — $1,900 legal + $1,000 survey
Mortgage fees ($)
2% product fee on $596,250 loan + $1,000 booking fee
Running costs
Management10%
0%20%
Typical rental agency rate
Void weeks
Typical voids for rental
Insurance ($/mo)
Typical building+landlord cover for $400K+
Maintenance ($/mo)
Default $67/mo — type unknown
Result · Rent it out
Monthly profit
-$5,442
after mortgage, operating costs & tax
Rent in$0/mo
Where it goes
$3,967Mortgage$1,475Costs
Outgoings exceed rent — you top up $5,442/mo
Mortgage$3,967
Costs$1,475
Maintenance$67
Insurance$40
Voids + council tax$11
Ltd co. accounts$104
Tax—
Shortfall−$5,442
Returns
Return before costson price0.00%
Cash returnon cash-22.98%
Gross margin-$1,475
Cash needed$284,136
Monthly profit paybackn/a (monthly loss)
Data confidence
Lender stress test
Rent-covers-mortgage check0.00
Rent-covers-mortgage check FAIL (need ≥ 1.00)
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
$17,700
$47,602
$0
$0
-$65,302
-$65,302
Year 2
$0
$18,231
$47,602
$0
$0
-$65,833
-$131,136
Year 3
$0
$18,778
$47,602
$0
$0
-$66,380
-$197,516
Year 4
$0
$19,341
$47,602
$0
$0
-$66,944
-$264,460
Year 5
$0
$19,922
$47,602
$0
$0
-$67,524
-$331,984
Year 5 disposal
Disposal gain (gross)-$19,534
CGT$0
Net Disposal proceeds$855,801
What we verified
What we verified
2 total · click to expand
00020 ok · 0 caution · 0 fail · 2 unknown
Investor
Tenant profileUnknown
Tenant profilelikely cohort
Primary profile
Mixed demand
Nearest university
for student-let assessment
University of Glasgow · 5102.3 km
Reason
Mixed-demand area without a single dominant tenant cohort. Local lettings agent can clarify.
844 Mill Hill Terrace, Fairfield, CT 06890, Southport, CT 06890
lot
$795,000
1 / 16
0/100
Marginal
No rent data — verify locally before offering.
Monthly profit −$5,442/mo at the default 25% deposit @ 5.5% — open the calculator to stress-test.
Monthly cashflow
−$5K/mo
You top up $5K/mo
Price
$795K
No local sold comps to compare
Return · IRR
—
Not modelled
Cash to get in
$284K
Deposit + fees + refurb
5-yr return on cash -117%
Bedrooms
—
— bath
Run the numbers
Each tab prefills
What-if calculator
Edit any input — outputs recalc live
Buy-to-Let. Standard rental on an Assured Shorthold Tenancy. Single household, market rent, paid monthly direct to landlord (or via agent). (hover any strategy tab for pros + cons)
Offer ($)
Monthly rent ($)
No rent data — verify locally
Financing
DepositYour cash in — the rest is the mortgage25% · $198,750
5%100% (cash buy)
Standard 75% LTV for rental
Mortgage rate5y fixed7.0%
3.0%9.0%
5-year fixed (market average) — 7.00% (as of 2026-05).
Mortgage term (years)
Stress rate8.0%
5.0%9.0%
Fed base + 2pp stress (8.0%)
Acquisition costs
Refurb ($)
Tiered estimate (full refurb): $42,690–$80,380 range from $/sqft + per-room model
Legal + survey ($)
Standard house — $1,900 legal + $1,000 survey
Mortgage fees ($)
2% product fee on $596,250 loan + $1,000 booking fee
Running costs
Management10%
0%20%
Typical rental agency rate
Void weeks
Typical voids for rental
Insurance ($/mo)
Typical building+landlord cover for $400K+
Maintenance ($/mo)
Default $67/mo — type unknown
Result · Rent it out
Monthly profit
-$5,442
after mortgage, operating costs & tax
Rent in$0/mo
Where it goes
$3,967Mortgage$1,475Costs
Outgoings exceed rent — you top up $5,442/mo
Mortgage$3,967
Costs$1,475
Maintenance$67
Insurance$40
Voids + council tax$11
Ltd co. accounts$104
Tax—
Shortfall−$5,442
Returns
Return before costson price0.00%
Cash returnon cash-22.98%
Gross margin-$1,475
Cash needed$284,136
Monthly profit paybackn/a (monthly loss)
Data confidence
Lender stress test
Rent-covers-mortgage check0.00
Rent-covers-mortgage check FAIL (need ≥ 1.00)
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
$17,700
$47,602
$0
$0
-$65,302
-$65,302
Year 2
$0
$18,231
$47,602
$0
$0
-$65,833
-$131,136
Year 3
$0
$18,778
$47,602
$0
$0
-$66,380
-$197,516
Year 4
$0
$19,341
$47,602
$0
$0
-$66,944
-$264,460
Year 5
$0
$19,922
$47,602
$0
$0
-$67,524
-$331,984
What we verified
3 total
0102
Building condition1▾
Refurb costBased on beds + baths + sqftNot stated on the listing