The Yoga Loft, which has 1000-plus clients a week, including high-profile players from the Newcastle Knights and the Newcastle Jets, is trying to convince the developer to reduce the height of the apartment block so it can continue to enjoy views across Newcastle.

Yoga Loft owner and head teacher Cveta Jovanoska said the location's acoustics and visual aspects were core to her business.

She said people came to Yoga Loft to get away from street life and blocking the view would severely affect her business's economics.

A number of debates over harbour views, overshadowing and overdevelopment are expected to be played out in the council chambers over the next two years as more development applications for high-rise apartments flow in.

The Newcastle Inner City Residents Alliance is protesting plans for three other large-scale apartment buildings planned for the CBD, while residents in Wharf Road earlier this month successfully stopped the council's plans to block their views with a development planned on the former Lynch's Prawns site.

Peter Shaddock, from Shaddock Smith Architects, said he had been working on the Pacific Street plans for eight months and complied with all of the council's zoning laws, including an 18-metre buffer zone between the neighbouring building.

He said the plans had already been revised to retain the site's existing heritage facade.

Mr Shaddock said Yoga Loft would still retain a 170-degree view of the beach and the park from its windows, but would lose its views of the harbour.

The development application is expected to be presented to councillors for consideration later this year.