HDB is contributing to the breeding of mozzies, and no body point fingers at them...look at the older flats, with the six holes for laundry poles!!.
These holes, have no drainage when water accumulates...you are RESPONSIBLE for capping them...but who created the problem?.HDB!
They should do & drill holes in them holders, in every flat...this will halve at least the mosquitoes breeding problems. The other another design error, are the numerous flat ledges in the flats; water accumulates on them.
Despite the extremely dry weather, where then can the mosquitoes breed?.......look around ypu, outside your window...