Property

Property Tools

Property Calculators & Home Cost Tools

Work through house part exchange offers, second-home costs, purchase tax, affordability, freehold estimates, Northern Ireland rates and rental yield before making the next property decision.

Buying, owning and investing

Find the property number you need

Buying

Estimate upfront purchase costs, borrowing power, and whether a new-build part exchange offer is competitive.

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Stamp Duty Calculator

Estimate England and Northern Ireland residential SDLT using selected rule periods, buyer type, and surcharges.

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Mortgage Affordability Calculator

Estimate borrowing range, purchase budget, and repayment stress tests from income, debts, deposit, and rate.

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House Part Exchange Calculator UK

Compare a new-build house part exchange offer with an open-market sale, including estate-agent fees, sale costs, onward purchase tax, and mortgage impact.

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Ownership and Costs

Model freehold purchase assumptions, second-home running costs and Northern Ireland rates.

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Freehold Purchase Calculator UK

Estimate the possible cost of buying a leasehold freehold in the UK with leasehold valuation, ground-rent, marriage-value, and legal-cost assumptions.

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Second Home Cost Calculator UK

Estimate UK second home purchase costs, including regional property tax assumptions, deposit, fees, setup costs, mortgage payments, and annual running costs.

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Northern Ireland Rates Calculator

Estimate Northern Ireland domestic rates from capital value, council area, rating year, reliefs, and balances.

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Investment

Check rental-yield assumptions alongside purchase costs and mortgage assumptions.

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Rental Yield Calculator

Estimate rental yield, monthly cash flow, income-tax impact, and a sale CGT scenario.

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Property guides

Decision guides for bigger property choices

PropertyIs a House Part Exchange Offer Worth It?PropertyHow much could my Northern Ireland rates bill be?

Property journey

Move from purchase costs to ownership and improvement decisions

Property decisions usually involve several linked costs. A purchase price can affect stamp duty, borrowing, part exchange value, running costs and eventual yield.

Use the groups above to separate what you are trying to estimate: buying costs, ownership costs or investment return.

Buying a home

Check affordability first, estimate stamp duty next, then compare part exchange if a developer offer is part of the deal.

AffordabilityStamp DutyHouse Part Exchange

Owning or changing a property

Freehold purchase, Northern Ireland rates and second-home costs help separate recurring ownership costs from one-off purchase decisions.

Freehold CostNI RatesSecond Home Cost

Choosing well

Similar property tools answer different questions

  • House Part Exchange compares the lower offer with estate-agent costs, chain risk and speed.
  • Northern Ireland Rates is specific to NI domestic rates, not council tax in Great Britain.
  • Second Home Cost and Rental Yield keep upfront purchase costs separate from ongoing ownership assumptions.

FAQs

Property Calculator Questions

Which property calculator should I start with?

For buying, start with Mortgage Affordability and Stamp Duty. For a new-build part exchange, use House Part Exchange. For ownership costs, use Freehold Purchase or Northern Ireland Rates where relevant.

Is stamp duty the same across the UK?

No. Stamp duty rules differ by UK nation and buyer circumstances, so the calculator exposes the relevant rule assumptions where supported.

Do property estimates replace legal or mortgage advice?

No. They are planning tools. Mortgage offers, tax liability, leasehold costs, surveys and renovation quotes can all change with the exact property and your circumstances.

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