This Practice Note provides an overview of planning obligations in Scotland, commonly known as section 75 agreements, made under the Town and Country Planning (Scotland) Act 1997 (TCP(S)A 1997). It explains their purpose in making development acceptable in planning terms, the statutory and policy tests governing their use, and the types of infrastructure, services and mitigation they commonly secure. The note outlines the relationship between planning obligations and planning conditions, the use of unilateral undertakings, and key drafting and due diligence considerations. It also addresses registration, enforceability against successors in title, modification and enforcement by planning authorities. It is part of a collection of guidance on planning in Scotland, see: Planning for property lawyers in Scotland—collection. What are planning obligations? Agreements made under TCP(S)A 1997, s 75, also known as planning obligations or section 75 agreements, are agreements between developers and planning authorities (PAs) that require developers to contribute towards a range of infrastructure and services, such as community facilities, public open space, transport improvements and/or affordable housing.