Yeah, in the permit application you need your neighbours approval but u know what? My contractor signed that haha....

I think most ppl would just inform instead of ask. if neighbours indicate 'ok' then u tell them you will get their signature..If they give you any indication of a 'no' just inform them that you will be doing what and what..dont even have to tell them that you need their approval..

Anyway, may i know why they give you a blunt NO. Is there are reason? fengshui thing or air space or that you will be blocking their view or sunlight where they dry clothes and such maybe you can give them a different solution..cannot be so teruk la