additional benefit- living accomodation

sir if the original cost of a house was less than 75000pounds, and it has been approximately 3 years since the house was purchased by the employer, so this means we will use original cost of purchase plus any additional capital improvements done to the house= cost of living accommodation. as far as my understanding is concerned, it is the total of cost of offering living accommodation that should be greater than 75000pounds rather than the original cost alone (which is probably what you were hinting at in one of your lectures).

so am a little flustered at the moment. can you please clarify sir?