FOI - Garden Bridge guarantee mayoral decision MD1647

Any correspondence from Thomas Heatherwick about the Garden Bridge since January 1 2016.

Any correspondence between officials about the implementation or timing of mayoral decision MD1647 (ie providing a guarantee for the garden bridge) between December 1 2015 and May 5 2016.

Any correspondence between Boris Johnson and anyone at Transport for London that mentions both;

• (A) spending on public transport projects in Lambeth and
• (B) the Garden Bridge, between the dates September 1 2015 and October 31 2015.