These two gems, posted before here at NOT PC, are two of my favourites of his work.
'Split Box' House - Melling:Morse Architects
House by Gerard Melling and Allan Morse on a secluded site in Tuateawa Bay, Coromandel.
Two mezzanine rooms looking over a double-height living space – and an outside toilet. Of course.
Simple, yet effective.
The Modern Residential Design blog calls it “seaside loft style living.” It doesn’t mention the quality of the seaside.
The reasons for the house's name should be obvious enough.
'Samurai' House – Melling:Morse Architects
The 'Samurai' House by Melling Morse Architects, a "small, simple house amongst the trees of a tiny suburban forest" in Silverstream, for a "celebrated martial arts exponent." 
Small, yet perfectly formed. Like a small well-crafted jewel box, don’t you think?