After the death of their father and Virginia's second nervous breakdown, Vanessa and Adrian sold 22 Hyde Park Gate and bought a house at 46 Gordon Square in Bloomsbury.
Woolf came to know Lytton Strachey, Clive Bell, Rupert Brooke, Saxon Sydney-Turner, Duncan Grant, Leonard Woolf, John Maynard Keynes, David Garnett, and Roger Fry, who together formed the nucleus of the intellectual circle of writers and artists known as the Bloomsbury Group. Several members of the group attained notoriety in 1910 with the Dreadnought hoax, which Virginia participated in disguised as a male Abyssinian royal. Her complete 1940 talk on the hoax was discovered and is published in the memoirs collected in the expanded edition of The Platform of Time (2008). In 1907 Vanessa married Clive Bell, and the couple's interest in avant garde art would have an important influence on Woolf's development as an author.
Virginia Stephen married the writer Leonard Woolf on 10 August 1912. Despite his low material status (Woolf referring to Leonard during their engagement as a "penniless Jew") the couple shared a close bond. Indeed, in 1937, Woolf wrote in her diary: "Love-making—after 25 years can't bear to be separate ... you see it is enormous pleasure being wanted: a wife. And our marriage so complete." The two also collaborated professionally, in 1917 founding the Hogarth Press, which subsequently published Virginia's novels along with works by T. S. Eliot, Laurens van der Post, and others. The Press also commissioned works by contemporary artists, including Dora Carrington and Vanessa Bell.
The ethos of the Bloomsbury group encouraged a liberal approach to sexuality, and in 1922 she met the writer and gardener Vita Sackville-West, wife of Harold Nicolson. After a tentative start, they began a sexual relationship, which, according to Sackville-West in a letter to her husband dated August 17, 1926, was only twice consummated. However, Virginia's intimacy with Vita seems to have continued into the early 1930s. In 1928, Woolf presented Sackville-West with Orlando, a fantastical biography in which the eponymous hero's life spans three centuries and both sexes. Nigel Nicolson, Vita Sackville-West's son, wrote, "The effect of Vita on Virginia is all contained in Orlando, the longest and most charming love letter in literature, in which she explores Vita, weaves her in and out of the centuries, tosses her from one sex to the other, plays with her, dresses her in furs, lace and emeralds, teases her, flirts with her, drops a veil of mist around her." After their affair ended, the two women remained friends until Woolf's death in 1941. Virginia Woolf also remained close to her surviving siblings, Adrian and Vanessa; Thoby had died of typhoid fever at the age of 26.