Regulations on Real Estate Appraisal Article 133
The following rules can be applied to estimate property rent under renewal of a lease:1. Estimation of rent using comparison method through cases of lease renewal as comparable properties.2.Estimation of net income through multiplying the normal value of the subject property on the date of value opinion by rental income rate for a renewed lease, with necessary included.3.Estimation of rent through the net income of the rent specified in the original contract for the subject property, with the rent adjustment after considering the rent trend, and with necessary costs included.4.Estimation of rent through the part of difference between the original contract rent and the economic rent in the market that shall be attributed to the landlord, and with contract rent added.
中文原文 不動產估價技術規則第133條
續訂租約之租金估計，得採下列方式為之：
一、以續訂租約之租賃實例為比較標的，運用比較法估計之。
二、以勘估標的於價格日期當時之正常價格為基礎，乘以續租之租金收益率，以估計淨收益，再加計必要費用。
三、以勘估標的原契約租金之淨收益，就其租金變動趨勢調整後，再加計必要費用。
四、分析勘估標的原契約租金與市場經濟租金之差額中，應歸屬於出租人之適當部分，加計契約租金。
一、以續訂租約之租賃實例為比較標的，運用比較法估計之。
二、以勘估標的於價格日期當時之正常價格為基礎，乘以續租之租金收益率，以估計淨收益，再加計必要費用。
三、以勘估標的原契約租金之淨收益，就其租金變動趨勢調整後，再加計必要費用。
四、分析勘估標的原契約租金與市場經濟租金之差額中，應歸屬於出租人之適當部分，加計契約租金。