The early commercial strips of Karangahape Rd, Kingsland, Dominion Rd and Ponsonby Rd are under threat from the draft Unitary Plan, say heritage groups.
The council's heritage advisory panel is concerned that there has been limited investigation of character status for early town centres, saying Karangahape Rd should be given priority as a character area.
The Character Coalition - an umbrella organisation of 60 heritage and community groups - says Karangahape Rd, Kingsland, Dominion Rd and Ponsonby Rd contain some of the best architectural records of Edwardian commercial development.
However, it said these areas were threatened by plans for three- to four-storey buildings that created an incentive to demolish, and seismic upgrades that could spell doom for continuous blocks of heritage stock.