Shadowing studies for Waterfront Place: what’s the real story?

A study by MGS Architects suggests that any built form higher than 8 storeys at Waterfront Place will shadow the beach.

shadowing

Shadowing Study Source: MGS Architects, 2009)

But this is an inconvenience for a later study by SJB Urban Pty Ltd who state “The key outcome of this (MGS) advisory report is the relatively modest scale of the permissable building envelope, driven by the local character and heritage considerations, and stringent controls on overshadowing of the public realm.” SJB goes on to recommend a 12-storey building tower almost on the edge of Waterfront Place.

The City of Port Phillip then conducted some shadowing studies for Waterfront Place and proposed in its design guidelines a tower (in the same place but only 10 storeys).

So what’s the real story? Who do you believe?

We conducted our own shadow model using Google Earth. In this aerial shot, taken late morning (not sure what time of year), the 10-storey building on the left casts a shadow.

The building on the left is 10-storeys high

The building on the left is 10-storeys high

What if we move the 10-storey building to the proposed location of the 10-storey tower at Waterfront Place?

Move the 10-storey building to Waterfront Place and it shadows the beach

Move the 10-storey building to Waterfront Place and it shadows the beach

There’s no doubt about that conclusion: the beach will partly shadowed in the late morning by a 10-storey tower. The length of the shadow is directly proportional to the height of the tower. The shadow is reduced 20% for an 8 storey tower and increased by 90% for a 19-storey tower.

Validated at ground level

At ground level, the extent of shadowing from similar sized towers is evident: two towers shadow a large area of the beach right to the waterline.

Two towers shadow a large part of the beach right to the waterline

Two towers shadow a large part of the beach right to the waterline.


Last updated: 23 June 2013 | Shortlink: http://wp.me/P3tOu9-vT