Built environment practitioners currently seek options and opportunities to respond to the biodiversity emergency. Biodiversity Inclusive Design (BID) is an approach to design that seeks to foster functional ecological systems, enable species’ persistence within the built environment and (re) connect people with nature. BID can support designers’ quest toward biodiversity positivity. However, design projects that prioritise biodiversity are sparse and are limited to ad hoc initiatives by individual champions rather than being standard practice. Frameworks providing a structured design process to achieve biodiversity positivity already exist, but they can be difficult to find, compare and navigate. Responding to calls to further develop the concept of Biodiversity Inclusive Design, we systematically analyse 15 design frameworks compatible with BID. We explore how existing design frameworks position biodiversity as a client. For each framework, we uncover the underlying rules, ideas, beliefs, design principles and proposed structure of the design process. Through a thematic analysis, we identify re-emerging concepts and themes underpinning BID. Nested within complementary design frameworks, we conclude by positioning BID as a set of parallel processes that specifically explore biodiversitys’ perspectives (needs, preferences) and how they interact with the socio-ecological system to give a voice to biodiversity within the planning and design process. Our paper formalises BID as a practice and identifies three core dimensions of design action and nine design principles.