Labour and National's landmark townhouse bill will be watered down again, reducing the maximum height of buildings at the section boundary, allowed under the bill.
Initially, the bill allowed height to boundary ratios of 6m at the side and rear boundaries, with a 60 degrees recessionary plane.
But concerns over sunlight loss saw the environment select committee recommend this be reduced to 5m as of last Thursday.
Housing Minister Megan Woods and Environment Minister David Parker then decided to reduce this ratio further, informing the committee on Friday they would like to have this ratio trimmed to 4m.