Have your say on our plans for the Kennington Green head house and landscaping

Closed 20 Apr 2017

Opened 23 Mar 2017

Overview

Our plans to extend the Northern line to Battersea will help regenerate the Vauxhall, Nine Elms and Battersea areas, supporting 25,000 new jobs and more than 20,000 new homes. Two new stations to be built at Nine Elms and Battersea Power Station are targeted for completion in 2020.

An overview image of the Northern Line Extension

We will also be building two shafts and head houses; one at Kennington Green and another at Kennington Park. These will provide ventilation and emergency access to the Tube once operational. 

We have planning permission to build the shaft and head house at Kennington Green. We are now in the process of finalising the detailed design for the head house and would like to seek your views.

We would also like your views on the landscaping of the Green.

Click here for a copy of our exhibition boards showing all options which is exactly the same as the information on this web page (PDF)

Click here for a copy of the leaflet we have produced (PDF)

Table of contents
Initial design
Design Development - Engineering requirements
October Planning Submission
Head House facade options
External materials options
West facade options
Southern corner landscape options
Eastern edge landscape options
Tree options
Have your say

Initial design
An initial design for the head house was developed in 2012 and then in 2014 approved by Government in the form of a Transport Works Act Order (TWAO) subject to conditions, namely scale, external appearance, materials and operational noise.

This was not a fully developed design, therefore the Planning Inspector in his decision notice gave us scope to develop the initial design in more detail.

Any changes can be authorised by the local planning authority (London Borough of Lambeth) through the discharge of a number of planning conditions, namely:

  • Condition 2(a) regarding revisions to the scale and external appearance
  • Condition 2(b) regarding details of external materials
  • Condition 14 regarding airborne noise from the equipment in the head house (approved by London Borough of Lambeth on 16 September 2016)

We are seeking your views on different design options relating to the first two planning conditions.

Computer Generated Image of the head house design, view of the head house from the south east

Limits of Deviation
The Limits of Deviation defines the space within which the head house can be built. The Transport Works Act Order Limits of Deviation for the head house is 11.1 metres.
 

 


Drawing indicating the Transport Works Act Order Limits of Deviation for the head house

Design development: Engineering Requirements
The engineering and safety standards applied to the detailed current design are more demanding that the assumptions used for the initial design. This meant that an additional space of 115 sq m was required:

  • Some of this space was found through increasing the depth of the basement from one to two levels. Where possible we have moved rooms from the head house to the basement to minimise changes above ground
  • The vents on the head house needed to be increased to allow sufficient airflow for the firefighting safety systems. This led to the height on the southern side of the head house increasing to match the rest of the head house

Initial Design internal arrangement

An image of the initial internal arrangement design

 

Current Design internal arrangement
An image of the current internal arrangement design

October 2016 Planning Submission
We submitted our revised designs to London Borough of Lambeth for their consideration and public consultation. The Planning Committee considered this on 29 November 2016. The Committee decided not to approve due to:

  • The proposed external detailing
  • The proposed external materials (proposed brick colour/tone)



Computer Generated Image of the head house Planning Application design, view of the head house from the north east
 


Previously proposed brick - ‘Mystique’

Head House Facade - Options
We would like to hear your views on which option you prefer.

Option 1

  • Outline of brick fin (vertical vents made of brick) panel extended to ground level as recess
  • Face of brick fins recessed 50mm within cavity



CGI of Option 1: Vertical brick fin patterning recessed
 

Option 2

  • More subtle sloped brickwork from brick fins to the base (chamfer)
  • Lowered point of chamfer to reduced height of building base



CGI image of Option 2: Vertical brick fin patterning lowered

Click here for more detail for both options (PDF)

External materials - Options
We would like to hear your views on which option you prefer.

Click here for a larger version of the above options (PDF)

West Facade - Options
We have sketched up some indicative designs for the back wall. This wall faces west on to Montford Place.

Option 1: Free of patterning

Image of Option 1: Free of patterning


Option 2: Vertical brick fin patterning

Option 2: Vertical brick fin patterning
 

Option 3: Recessed rectangular vertical areas

Image of Option 3: Recessed rectangular vertical areas
 

Option 4: Projecting brick courses

Image of Option 4: Projecting brick courses

Landscape Options - Southern Corner
We have looked at options for the landscaping at the southern corner of the Green.

Option 1

  • Hard landscaped area to southern corner of the Green
  • In alignment with the 2014 approved Initial scheme

Image of Option 1: Hard landscaped area to the southern area of the Green

Option 2:

  • Kennington Green landscaping extended into southern corner, with a planted perennial bed



Image of Option 2: Kennington Green landscaping extended into southern corner, with a planted perennial bed

Option 3:

  • Kennington Green landscaping extended into southern corner, with an extension of the grassed area



Image of Option 3: Kennington Green landscaping extended into southern corner, with an extension of the grassed area

Option 4:

  • Hard landscaped area to southern corner of the Green, with raised planters maintained by the community



Image of Option 4: Hard landscaped area to southern corner of the Green, with raised planters maintained by the community (indicative)

Landscape Options - Eastern edge
We have looked at options for the landscaping along the eastern edge of the Green on Kennington Road.

Option 1: Perimeter kerb

  • Perimeter granite kerb to grassed area at height of grass
  • Height of perimeter kerb 200mm above pavement
  • Depth of perimeter kerb 200mm
  • Grass level with perimeter kerb
  • In alignment with the 2014 approved Initial scheme

Image of Option 1: Perimeter kerb


Option 2: Raised kerb to form a bench

  • Perimeter granite kerb raised to form a bench on eastern perimeter of Kennington Green along length of Kennington Road
  • Height of bench 400mm above pavement
  • Depth of bench 400mm
  • Grass level 200mm below surface of bench
  • Feature lighting strip flush with pavement below bench


Image of Option 2: Raised kerb to form a bench

Landscape Options - Tree Options
We have investigated options for a number of different tree species suitable for the Green. Indicative tree ages are provided.

 

Tree plan


 

Option 1: June Berry (in alignment with the 2014 approved initial scheme)

Image of Option 1: June Berry at circa five years

 

Option 2: Silver Birch (in alignment with the 2014 approved initial scheme)
Image of Option 2: Silver Birch at circa five years

 

Option 3: Quince

Image of Option 3: Quince at circa 15 years

 

Option 4: Medlar

Image of Option 4: Medlar at circa 10 years

Have your say

We would like to know what you think about our proposals for Kennington Green.

Please give us your views by completing the online survey below by 20 April 2017.

Alternatively, you can:

If you would like us to send you a paper copy of the information and feedback form, please call us on 0343 222 2424.

Areas

  • Lambeth

Audiences

  • Anyone from any background

Interests

  • Northern Line Extension