the first paragraph:

A real estate developer plans to build a land area of $5,000$ square meters and develop it into residential apartments consisting of $75$ units.

Construction conditions:

The developer is allowed to build only $70\%$ of the land area

The engineering consultant approved $20\%$ of the building for corridors and entrances

Maximum turns $2\mathrm{.}5$

The first question:

How much area does the building area have?

second question:

How much are the salable spaces?

The third question:

What is the average unit size?

Second paragraph:

In the same previous example, calculate the total costs and revenues of the project, while calculating the return on investment according to the following data:

Basic data

Price per meter of land $4,000$ riyals$/$meter

The cost of developing a construction meter $2,000$ riyals$/$meter

Government licenses $5,000$ Per unit

Fund fees $250,000$ annual

selling price $9,000$ riyals$/$meter

Duration of the project $2$ year

Required

Building a financial model for the project, explaining all the details of the project

Calculate the rate of return on investment and the rate of return on equity

Third paragraph:

The Fund is considering adding financing to the ownership structure of the project in the amount of $10$ million riyals at the prevailing market interest rate

Required:

Modifying the previous financial model based on the new variables

Calculate the rate of return on investment and the rate of return on equity