Skin cancer is the most common malignancy in the world. Due to the exposed locale, the auricle is particularly vulnerable to the effects of cumulative sun exposure. Following surgical excision, reconstruction of partial auricular defects, without altering the natural shape and form, remains a challenging procedure owing to the three-dimensional conformation of the external ear. The postauricular island 'revolving door' flap is a reliable single-stage method for reconstructing anterior auricular and conchal defects. While the flap is well-described in the literature, a step-by-step approach to reconstruct the anterior auricular concha with excision of a malignant lesion remains imprecise. Herein, we present a step-by-step description of the surgical technique, using surgical photographs of a patient who presented with a basal cell carcinoma on their anterior auricular concha and results from their long-term follow-up. Specifically, the key points for the surgical trainee are: utilising the reconstructive triangle in technique selection, the discrete components of the revolving door concept, the local blood supply and axis of the auricle, and the excision of the underlying cartilage with appropriate margins for tumour resection.