if jupiter and mercury is good and 4th house lord is stong in kundali than north east toilet will not give negative result, always first check the individuals kundali. vastu of all houses can be same but kundli of all the people are not same it is the kundli and planets decide the fate not vastu
does that mean - on a plot which is open from all four sides, the flats inside the plot irrespective of their directions do not have any vastu related dosh?