Deliverable 1.1 for Scotland's Land Reform Futures project (JHI-E3-1) from the Strategic Research Programme 2022-2027 funded by the Scottish Government Rural and Environment Science and Analytical Services Division. This document is a report on accessing and integrating land ownership data in Scotland, based on a review of existing land ownership data, its availability, accessibility, and shareability. The review was a desk-based study with a small number of meetings with data providers. It identifies relevant data from several sources including Scottish Government Agriculture datasets, Forest and Land Scotland, Registers of Scotland, Local Authorities, from the private sector and other sources. The datasets differ in terms of scope, coverage, granularity, frequency of update, and cost of access. This document summarises the characteristics of the datasets and the challenges for making land ownership data more transparent.