The campaign, launched by Camden Town Unlimited in June, raised £64,000, almost double its initial target a month after beginning.
Supporters include the Mayor of London Sadiq Khan and Camden Market, alongside more than 300 residents, community groups and businesses.
The project aims to link the world-famous Camden Market with the recently-redeveloped King’s Cross area by transforming an 0.8km disused railway line in Camden into a new public park and garden walk.
The money raised will be used for feasibility work to establish key details, including the condition of the existing infrastructure, the resources required for transforming the disused railway, and timelines to completion.
As well as the feasibility work the crowdfunding campaign will help pay to set up a new community organisation that will deliver the Camden Highline, and events and workshops that will guide the project’s aims and ambitions.
Camden Town Unlimited chief executive Simon Pitkeathley said: "This is a small but very significant step towards construction. We want to thank everyone who has donated to the campaign, from the Mayor to businesses, residents and community groups. We can begin the next stage of work with the best possible chance to turn this idea into a reality."
The BID will hold an exhibition showing off the proposed route alongside a series of events, workshops and walking tours during the London Design Festival, from 16-24 September 2017.