three different kinds of houses in London
First of all, the topic is not about "different houses" , but it is about" three different areas". Areas and Houses are different (consider this). Second of all, the use of "type" is more formal than "kind".
How about TIME?As can be seenIn general, the largest numbers
Never use "it can be seen" because the examiner will not have the question booklet.
1 bed, 2 bed and 3one, two and three bed respectively
Write the numbers under 10 in words.These numbersrental costs show that, Notting Hillpart of London areais one of the most expensive areas in London and people who wantare going to live there shouldneed to earn at least £98500 in aper year.
Although the minimum salaries to rent a house in this area is £85599 for 1 bed, but for 3 bed is not very low (£170500), compare to other figures in table
This sentence is too vague. Revise it. By the way, u must not use "Although" with "but".
numbers
Do not use "numbers". Use "rental charges", "results", and the like.
It is interesting that number reported for 3 bed in this area is not very less than the other area (157500 pounds)
maybe
probably is a better word