Have your say on our plans for Kennington Park head house and landscaping Northern Line Extension 2 Have your say on our plans for the Kennington Park head house and landscaping

Welcome to our public exhibition for the head house and landscaping of Kennington Park.

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.

We have built two shafts and will be building two head houses; one at Kennington Green and another at Kennington Park. These are essential in order to provide ventilation and emergency access to the Tube once operational.

We are seeking planning permission to build the head house at Kennington Park. We are now in the process of fi nalising the detailed design for the head house and would like to hear your views.

We would also like your views on the landscaping of the park. Please note the reinstatement of the dog walking area of the park is separate to the plans but it will be put back to its original position after our work is complete.

Staff are on hand to answer any questions you have. We hope you enjoy the exhibition and look forward to hearing your views. Northern Line Extension 3 Initial Design

An initial design for the head house was developed in 2012 and approved by Government in the form of a Transport Works Act Order (TWAO) in 2014. This approval was given subject to conditions including scale, external appearance, materials and operational noise. The Limits of Deviation defi nes the space within which the head house can be built and is shown in the image below. The Kennington Park head house is part of the shaft, which provides ventilation and emergency access to the Northern line southbound tunnel. It has been essential to move the head house as a result of increased fi re safety requirements from the London Fire Emergency Planning Authority (LFEPA). We will be submitting a new planning application for the head house, landscaping, airborne noise and access.

As part of this process, we are seeking your views on different design options relating to the planning application.

Computer generated image of the inital head house design, shown from the north west. View taken on Kennington Park Place looking towards St Agnes Place, with Community Centre in the background

Vertical LOD = 8.8m South elevation in context. View taken from the park looking towards Kennington Park Place, with Community Centre to the east

West elevation in context. View taken looking towards St Agnes Place, with Community Centre in the background Transport Works Act Order Limits of Deviation (LOD) for new head house size. Aerial view taken from the south west Northern Line Extension 4 Design Development: Engineering Requirements A: Initial Design internal arrangement

Key Function Ventilation Head House Circulation Basement Box Plant

Head House

Basement Box

Shaft

Shaft

The engineering and safety standards applied to the detailed current design are more demanding than the assumptions used for the initial design. This means that an additional floor space of 44sqm and 40% more ventilation is required.

We found some of this space by increasing the depth of the basement and providing a mezzanine level. Where possible we have maximised use of the basement to minimise changes above ground. B: Current Design internal arrangement Northern Line Extension 5 Building Context Brick Patterning

A Open brick fi ns C

(A) Smooth sloping brick (B) Projecting horizontal brick bands (C) Vertical brick fi ns

Head House Design B Closed brick fi ns ● The head house will add to the existing collection of objects in the park ● The head house will be sculptural in its form, which is a representation of its function ● Key functions of the Shaft are expressed through three interlocking volumes Current design viewed close up from north west, Kennington Park Place ● Tunnel Ventilation (blue), Fire Intervention pressurisation system (red), UK Power Networks (UKPN) and other supporting functions (Yellow) ● Vertical brick fi ns on the ● Each volume is built using a different brickwork texture north west corner of the head house provide texture (A) Tunnel Ventilation: smooth sloping brick and ventilation to one of the (B) Fire intervention: projecting horizontal C three head house volumes brick bands ● Open brick fi ns are used for (C) UK Power Networks and ventilation to air condenser supporting systems: units at fi rst fl oor level vertical brick fi ns ● Closed brick fi ns and a chamfer at the base provide more detail and grounds the building ● Brick fi ns are made of solid A B bricks using traditional hand laid brickwork construction ● Brick slips are limited to the chamfer at the bottom of the fi ns Kennington Park head house diagram showing three interlocking forms Exploded diagram showing brick fi n construction Northern Line Extension 6 Head House Facade: Options We would like to hear your views on which option you prefer

Design Option 1: Projecting brick band every second course Design Option 2: Projecting brick band every fourth course

Current Design viewed from south west, Kennington Park South Elevation South Elevation

140mm varies 102.5mm 140mm varies 102.5mm

Recessed Brickwork Recessed Brickwork

Blockwork Blockwork

Inside Outside Inside Outside

Projecting Brickwork Projecting Brickwork

Current Design viewed from north west, Kennington Park Place Brickwork detail section Brickwork detail section 10mm projecting brick course 10mm projecting brick course

The key design drivers are: ● To fulfi l engineering requirements safely within the Limits of Deviation set by the TWAO ● To come up with a contemporary design, which is refl ective and complementary of the park’s heritage ● To retain characteristics of the local area ● To refl ect the proportions and residential scale of surrounding housing ● Use simple and complementary materials the Kennington Green Shaft and meet the requirements of the Conservation Area ● To use brick patterning to provide a modern interpretation of traditional details Current Design viewed from north east, Kennington Park Place Northern Line Extension 7 External Materials: Options We would like to hear your views on which option you prefer Option 1 Option 2 Option 3 Option 4 Option 5 Brick Options:

Smeed Dean London Stock Smeed Dean Islington Yellow Rustics Lambeth Yellow Multi Mystique Hammersmith London Stock (Selected for use at Kennington Green) Brick Options: ● Precedents

Duke of York Square, Chelsea The Rowan SARC, Antrim Private Residence, Croydon Chelsea Academy, Lots Road, Chelsea Residential Boundary Wall, London`

Louvre Metal Finish: ● Door fi nish to match the louvre fi nish ● Metal fi nish is paired with specifi c brick Bronze metallic anodised aluminium Bronze metallic anodised aluminium Bronze metallic anodised aluminium Bronze metallic anodised aluminium Bronze metallic anodised aluminium type louvre (UA Analok 547) louvre (UA Analok 545) louvre (UA Analok 547) louvre (UA Analok 545) louvre (UA Analok 543)

Examples of aluminium louvres: Larger brick panels are available Left: Bronze colour louvre - Turnmill for review. These can be found in Building, Farringdon Kennington Park next to the shaft site. Right: Brickwork and louvre with frame detail Northern Line Extension 8 Landscaping: Options We would like to hear your views on which option you prefer

We have looked at options for the maintenance vehicle turning area which is shown in red hatching. This area is 5m by 6.75m:

● Option 1: Grasscrete ● Option 2: Spaced paving ● Option 3: Cellular paving concrete cells ● Option 4: Cellular paving plastic cells Head House ● Option 5: Advanced Turf System

Key Plan N Fire Brigade and maintenance vehicle turning area material Landscaped area to south west of head house within the Park (trees shown at year 1)

Option 1: Grasscrete Option 2: Spaced paving Option 3: Cellular paving concrete cells Option 4: Cellular paving plastic cells Option 5: Advanced Turf System Northern Line Extension 9 Landscaping: Options We would like to hear your views on which option you prefer

We have looked at the possibility of different mixes of meadow grass / wildfl ower planting around the head house and along the northern edge of the Park: ● Option 1: Native perennial wildfl ower meadow (requires one cut per year) ● Option 2: Native annual wildfl ower meadow (seed needs to be re-sown Head House every year) ● Option 3: Non-native annual wildfl ower meadow (seed needs to be re-sown every year) Key Plan N Areas of meadow grass/ wildfl ower planting Tree Landscaped area to south west of head house within the Park (trees shown at year 1)

Option 1: Native perennial wildfl ower meadow Option 2: Native annual wildfl ower meadow Option 3: Non-native annual wildfl ower meadow Northern Line Extension 10 Landscaping: Tree Options We would like to hear your views on which option you prefer As part of the landscaping we are N Key Plan offering different tree types. The locations of the trees are shown in the A Tree location A images to the left and right. Please B Tree location B choose one option for each location below: C Tree location C Location A: A ● Option 1: English Oak A 3 x C 3 x C ● Option 2: London Plane A Tree A B B B ● Option 3: Lime Tree A B A B B Location B: C C B A C A A A A A ● Option 1: Tulip Tree B 3xC C ● Option 2: Lime Tree B C C Location C: B B B ● Option 1: Quince B 3xC B ● Option 2: Medlar 3xC B ● Option 3: Black Mulberry View of head house from north east, Kennington Park Place, showing trees at year 1

Location A (images show trees at circa 15-50 years after planting): Location B (images show trees at circa 15-50 years after planting): Location C (images show trees at circa 15-50 years after planting): Option 1: English Oak Option 2: London Option 3: Lime Tree Plane Tree Option 1: Tulip Tree Option 2: Lime Tree Option 1: Quince Option 2: Medlar Option 3: Black Mulberry Have your say on our plans for the Kennington Park Place head house and landscaping

We hope you found the exhibition informative and we want to hear your feedback on the designs.

Laptops and paper feedback forms are available for you to provide your feedback now, or you can also share your opinions at: https://consultations.tfl .gov.uk/nle/kennington- park until 13 August.

We will review all feedback to help us finalise our designs before submitting our application to Lambeth in September for their consideration. We will keep you updated with further information if you provide us with your contact details.

Thank you for taking the time to view our design proposals and options.