借地権延長の法定プレミアム、地代の資本還元額、80年未満で発生するマリッジバリュー（価値増加折半）を試算。
Crucial: Below 80 years triggers marriage value!
All calculations, amortizations, and scenario projections displayed on this page are strictly for informational and educational purposes. Nothing herein constitutes investment, financial, tax, or legal advice. Actual HMRC tax bands, National Insurance contributions, Bank of England base rates, and lender criteria may vary. Calconova explicitly disclaims all liability for any decisions taken based upon these calculations. Consult a qualified financial advisor, CPA, or official HMRC documentation prior to executing financial commitments.