The house is marked by a memorial plaque unveiled by Prince Philip, Duke of Edinburgh, Patron to the RNID, on 9 June 1998.

During the 1940s, with the introduction of the National Health Service to the UK, it successfully campaigned for the provision of free hearing aids through the new welfare state system.

The Institute expanded into medical and technological research during the 1960s and 1970s, being a key player in the development of NHS provided behind-the-ear hearing aids.

RNID's auditor PricewaterhouseCoopers said that "material uncertainty" over fundraising income and other conditions cast doubt on the charity's ability to "continue as a going concern".

In 2020, partly as a response to the COVID-19 pandemic, the charity rebranded and reverted to the RNID name, stating a new purpose: "Together, we will make life fully inclusive for deaf people and those with hearing loss or tinnitus."

[7] The charity partnered with Sela and Newcastle United to create a jersey which would transform stadium noise into real-time touch sensations.

[9] Today the archive and rare books library is held in University College London's Special Collections.

The RNID Product Development team won an innovation award for their work on a new genre of telephon, the ScreenPhone, though this has now been discontinued.