This is part of a project in north-east Remuera, which included three connected ('semi-detached) townhouses. From memory, this is the largest of the three. [Correction: the three connected townhouses are at 64 Hapua. See comments below.] Here's Barfoot's description:
Every now and again, an architecturally outstanding home comes along that is simply unique. Designed by the revered architect Claude Megson in 1974 with high ceilings and voids it presents an uplifting sense of volume and light filed spaces. This solidly built home on its own freehold 306m² site enjoys a quiet, leafy setting. Features 2 bedrooms, 1 1/2 bathrooms, separate living and dining areas which open to private courtyards and garden; including many original 1970's features. Perfectly positioned for optimum sun in winter and shade in summer, this could be your very own private sanctuary. A perfect natural setting just five minutes to the city.