Shuttered out

Am currently in dispute over addition of a sun screen (shutter) to the left elevation of our balcony that has been approved by the scheme architects for our community. Unfortunately my neighbour who is on the executive has raised an objection saying it will partially impede his water view through my balcony and that he has legal advice that indicates that his objection would override any proxies or consensus by other members of our strata plan. There are 30 lot owners in our SP. Can one individual block another lot owner regardless of precedence , compliance with architectural standards etc ??