The house is largely as the 2nd Viscount Palmerston left it, with only minor improvements being made when The Rt Hon. Sir Henry Temple, KG, GCB, MP, 3rd Viscount Palmerston (1784-1865) – who twice served as Prime Minister between 1855-1858 and 1859-1865.  Following his death, the estate passed to his step-son William Cowper-Temple, 1st Lord Mount Temple (1811-1888), and when he died the estate passed to his great-nephew – The Rt Hon Evelyn Ashley (1836-1907) – the second son of the great philanthropist Sir Anthony Ashley-Cooper, Bt., KG, 7th Earl of Shaftesbury (1801-1885), who had been private secretary to the 3rd Viscount Palmerston.  Ashley’s son – Colonel Wilfrid William Ashley, MP (1867-1939), who was later created 1st Lord Mount Temple (1932 creation) inherited the estate in 1908 and upon his death the estate passed to his eldest daughter – Edwina Ashley, and through her marriage to Lord Louis Mountbatten, the Broadlands estate passed into the Mountbatten/Knatchbull family – where it remains today.

Today, Broadlands is the family home of Sir Norton Knatchbull, Bt., 8th Lord Brabourne (b.1947), who until 2005 - when he succeeded in his father’s barony, was styled Lord Romsey.  He is the eldest son of the late Sir John Knatchbull, Bt., CBE, 7th Lord Brabourne (1924-2005) and his wife - The Lady Patricia Knatchbull (née Mountbatten), CBE, MSC, CD, JP, DL, now 2nd Countess Mountbatten of Burma (b.1924), Mountbatten’s eldest daughter.

Broadlands has been open to the public since 1978, a project that Mountbatten himself was very heavily involved in.  The exciting “Mountbatten Exhibition” (opened on 9th May 1981 by HRH The Prince of Wales., KG, KT, GCB, OM, AK, QSO, CD, PC, ADC(P) (b.1948) - who was accompanied by his then future wife - The Lady Diana Spencer, later Diana, Princess of Wales (1961-1997)) is a focal part of any tour of Broadlands, has displays of medals, uniforms and mementoes of the extra-ordinary lives of both Mountbatten and his wife, Edwina.  

In December 2008, it was announced that the house would be closed until early 2011 for major remedial work, with many of the rooms being completely emptied of all its contents.