Unlike his influential father, Lake enjoyed a privileged education. Admitted to the Middle Temple in January 1610 with his younger brother, Arthur, he was subsequently sent to New College, Oxford, from where he transferred to Hart Hall. While still a student he was apparently found a clerkship in Chancery by his father; it was also rumoured that he was violently beaten by his mother.
Lake probably forfeited his clerkship on the disgrace and imprisonment of his father. In 1625 the borough of Wells returned him to Parliament as its junior burgess, doubtless through the intervention of his uncle, Arthur Lake, bishop of Bath and Wells, but he played no recorded part in the business of the Commons. The same borough returned him again in 1626, when his father also sat. Most, if not all, of the references to Sir Thomas Lake in the records of the 1626 Parliament are probably to the latter. The death of Bishop Lake in May 1626 left Lake without an obvious parliamentary patron, and in 1628 he was found a seat by William Copley, who claimed to be the sole elector at Gatton. However, on 26 Mar. Lake’s return was declared invalid by the Commons, which preferred a rival indenture submitted by the borough’s remaining freeholders.
Following the death of his father in 1630, Lake sought a wife. He initially contemplated marrying a daughter of (Sir) John Coke†, but negotiations with Coke foundered on the size of the dowry demanded by Lake.
Lake’s principal property was the Middlesex manor of Little Stanmore, but he also owned the neighbouring manor of Great Stanmore. Before 1638 this was leased to another man, but in that year Lake bought out the tenant’s widow and took full possession himself.
On the outbreak of Civil War, Lake was appointed a commissioner of array for Middlesex, but he did not join the king and indeed took no known part in the conflict. Bureaucratic confusion led him to be rated twice by the parliamentary assessment commissioners. He naturally refused to pay the second assessment, thereby prompting the commissioners to order the seizure and sale of his estates, but as he was subsequently able to demonstrate that he had already paid the earlier demand in full the commissioners rescinded their order.
Lake remarried in 1648. He died intestate five years later, and was buried at Little Stanmore. His 12-year-old son and heir, Thomas, was cared for by two of his uncles, one of whom, Lancelot Lake, represented Middlesex at the Restoration.
