This dataset includes the Impulse Responses, Auralization results and acoustic models of spaces used for the research on the "Acoustic Reconstruction of the House of Commons, c. 1820-1834". The data is associated with the homonymous paper submitted in the special issue "Acoustics, Soundscape and Sounds as Intangible Heritage", Acoustics (ISSN 2624-599X) (January 2023). Some of the results were presented in a paper titled "Architectural acoustics and parliamentary debate: Exploring the acoustics of the UK House of Commons Chamber", in the Proceedings of the 2nd Symposium: The Acoustics of Ancient Theatres (July 2022). The dataset contains: Impulse responses and Auralization results from: Convovation House, Oxford Divinity School, Oxford modern House of Commons, Westminster Palace Holywell Music Room, Oxford York Guildhall Council Chamber ODEON model of the House of Commons in 1820-1834 ODEON model of the House of Commons in 1820-1834 Models from ODEON and CATT Acoustic of the simulated space. The in situ measurements were carried out by research teams of the Audiolab, University of York from 2017-2018, and impulse responses can be also found at OpenAIR library <https://www.openairlib.net/>. Contact: foteinouagl@gmail.com or aglaia.foteinou@york.ac.uk