Theatre503 in Battersea operates a biennial International Playwriting Award to recognise an emerging playwright. The Award, which attracts over 1,700 scripts from 45 countries, carries a prize of £6,000 provided by the Carne Trust, plus a guaranteed production of the winning play at Theatre503.

In alternate years, the theatre also offers an extensive mentorship programme to five emerging playwrights, employing experienced professionals from major theatres. Each individual is expected to have written a full-length play by the end of their tenure, where at least one of which will receive a commercial production at the theatre. The Trust provides a small stipend to these five individuals to help with living costs.

On an exceptional basis, the Carne Trust also provides part commissions for new plays by selected emerging playwrights, and contributes limited financial support to theatrical productions, especially those involving former beneficiaries.