Appraisal Best Practice Part 1: Residential Block

Posted by Aprao Development Appraisal Tool on 8th December 2020 -

In this 4-part series, Aprao's resident RICS Chartered Surveyor Nick Fisher shares best practice around creating a variety of different property development appraisals. In Part 1, he provides a detailed analysis of how to appraise a residential block development.

The Development Scenario

In this appraisal we are analysing a redevelopment opportunity in South London. There is an existing building with planning for demolition, and the construction of two private residential apartment blocks.

The Gross Development Value

You can see below how to split the revenue into two unit types, and list the apartments on a floor-by-floor basis. In this example, the GDV for block one is £4.12 million, and for block two it's £3.23 million.

The Build Costs

To calculate the build costs, we have assumed different construction costs for the two blocks of apartments. You can see below how to separate out the preliminary costs, block one construction, and block two construction.

Additionally for this scheme we have not been provided with the Gross Internal Areas, so we have adopted a Net to Gross ratio of 120% to account for the common parts within the development.

The Finance

In order to calculate finance, we are operating under the assumption that we are going to borrow two facilities on this project.

 

Senior Debt

We are going to borrow a senior facility based on 65% of the development costs. The facility will be based upon interest on drawn balance with an annual interest rate of 5.5% for a term of 15 months. We have also included a commitment fee of 1% of the gross loan.

 

Mezzanine Debt

We are also going to borrow a mezzanine facility. It is based on 10% of the development costs, and the interest is calculated on interest on the full loan amount.

Would you like to view the final appraisal? You can see it here.
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