Professor Welch will be remembered for his perfectly crafted pencil notes in the margin, fine observation and genuine attention to detail, outspoken principled views on controversial issues, always meticulously formulated thoughts and views, discreet care, respect and consideration for others, contagious passion for heritage and design, an expansive general knowledge and always enquiring mind, delight in the joys and achievements of his family, modest and unassuming professional conduct and witty and intelligent sense of humour.