CHELSEA BARRACKS...CHELSEA BARRACKS BLOCK 14 Resident Liaison Group Page 38 27th July 2016 FAÇADE & FENESTRATION 1. Louis Sullivan, Buffalo 2. Adolf Loos, Vienna 3. Glasgow School

C H E L S E A B A R R AC K S

P H A S E 5 B B L O C K 14 R E S I D E N T L I A I S O N G R O U P

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CHELSEA BARRACKS BLOCK 14 Resident Liaison Group Page 3

27th July 2016

Piercy&Company

Oxford House, City of Westminster Clay Street, City of Westminster

Turnmill for Derwent London Drury Lane for Helical Bar PLC


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Piercy&Company

The Copyright Building for Derwent London Bart’s Square for Helical Bar PLC


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Piercy&Company

King’s Cross R8 for Argent Interiors - R8 Interiors & BBC Penthouses


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Competition Presentation Concepts & Opportunities

CHARACTER & PALET TE

The richness of the material palette can either be created through articulation or by selecting naturally expressive materials. The palette must allow a scale of detail which, works at both urban and human scale.

FAÇADES

To unify the square and the varying house typologies, a naturally inspired screen of worked/sculpted materials could create a base to the houses. By carefully manipulating the articulation, a hierarchy of scale and importance can be embedded into the primary façades.

DETAIL

The quality of workmanship and the composition of the detailing must be of the same fine quality and consideration as the work at architectural scale.

CORNERS, AXIS & VIEWS

The stepped square and axis clearly identify the dominant corners and façades. These elements of the masterplan can be articulated to ensure there is a visual hierarchy to the square.

TYPOLOGIES

As with the surrounding urban grain, a variety of forms and typologies adds to the richness of the urban pattern. Commercially, a variety of scales creates a wider choice for buyers.

VOLUME & HIERARCHY

Although there is subtle variation on the primary external elevation, the interior and rear can be more expressive. A variety of internal volumes and forms creates a hierarchy of spaces.

S I T E A N A LY S I S


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0 10 20 50m

Site & Constraints

Chelsea Barracks Block 14

Chelsea Barracks is located in the south-west part of the City of Westminster, along the border with the Royal Borough of Kensington & Chelsea.

Ranelagh Gardens and Royal Hospital Chelsea are located next to the site across Chelsea Bridge Road.

Block 14 is located within the Phase 5b site of the Chelsea Barracks masterplan, adjacent to Phase 5a to the south-west, Phase 6 to the south-east, and Phase 3b to the west.

To the rear of the site in the north, sits a row of Georgian townhouses running along St. Barnabas Street.

Ebury Bridge R

oad

Chelsea Bridge Road

Piercy & CompanyBlock 14

St. Barnabas Street

4 6

3a 3b 5a

5b

Masterplan Phasing Plan by Squire & Partners.


27th July 2016

Site & Constraints

Site Conditions & Constraints

Proximity to terraces at St. Barnabas Street

Proximity to Phase 6 buildings

Proximity to Phase 3b to the west and potential Crossrail vent

Proximity to gable ends of Phase 5a Blocks 12 & 13

North east facing rear façades provide limited sunlight into rear gardens

Crossrail Tunnel

Thames Water Western Great Sewer

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Analysis of Consented Massing


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Outline Consent Massing

The consented masterplan for Block 14 includes terraced houses and two mews houses; each with a lower ground floor and a basement.

The two mews houses are tucked into the corners of the site, with limited interaction with the square and minimal external facade available for fenestration.

Townhouses are based in the middle of the block, each with frontages facing directly towards the south west. Their massing directly reflects that of the adjoining 5a site at ground floor plus 3 further floors above ground.

Houses additionally include ground floor ‘summer houses’ which are separated from main dwellings with a moderately sized garden.

Terraced Houses(GF + 3F)

MewsHouse

(GF + 1F)

MewsHouse

(GF + 1F)

Garden (-1F)

(GF)

GF + 3F GF + 3F

Outline Consent


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Outline Consent

Outline Consent Critique

Side houses face directly against gable ends of Blocks 12 & 13. Also poor frontage & outlook for two-storey mews houses.

Proximity of building mass to neighbouring properties and loss of light to amenity spaces on St. Barnabas Street terraces.

Poor outlook to rear of mews houses

Limited direct sunlight into gardens.

Essential for proposed elevation treatment to be distinct from that of Phase 5a

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M A S S I N G P R O P O S A L S


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Massing Opportunities

Crescent Advantages

The crescent massing mitigates conditions and constraints on site to engage more successfully with neighbouring buildings and properties.

Notably, at the rear of the site towards St Barnabas Street, the proximity to existing terrace properties has been increased by approximately 5 meters - providing greater privacy and reducing overlooking issues.

The curved rear also allows more space between the listed boundary wall to the north of the site, resulting in better gardens to these properties.

In addition, properties within Block 14 have improved outlooks towards the rest of the Chelsea Barracks site, whilst creating a more open and welcoming terminus from the square.

Releationship of crescent massing with Orchard Square & rear site context


27th July 2016


Form a crescent setting out for Block 14, based on the radius from the centre of the square, fitting the form of the site more naturally.

The crescent shape allows for greater distances from neighbouring properties, mitigating further any overlooking.

Reduced massing from the north side of Block 14 when viewed from properties on St. Barnabas Street.

Improve outlook from houses towards the central square.

Utilise empty space in front of side houses by bringing frontages further towards the square, introducing the possibility of improving rear garden space.

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Proximity of crescent proposal vs consented massing to St. Barnabas Street properties

Outline of consented massing

18m

17m

12m

13m


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Crescent Precedents

Park Crescent, London Buxton Crescent, Derbyshire

Royal Crescent, Bath Wilton Crescent, London


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Outline Planning Consented Scheme Massing

View from east of St. Barnabas Street :

First floor looking south

Consented Massing


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The ‘Crescent’ Massing

View from east of St. Barnabas Street :

First floor looking south

Crescent Massing


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View from west of St. Barnabas Street :

First floor looking south east

Consented Massing


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View from west of St. Barnabas Street :

First floor looking south east


Crescent Massing


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View from Ebury Bridge Road :

Looking south west

Consented Massing


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View from Ebury Bridge Road :

Looking south west

Crescent Massing


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St. Barnabas Street from Ranelagh Grove

Looking east

Consented Massing


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St. Barnabas Street from Ranelagh Grove

Looking east

Crescent Massing

PA R A M E T E RC O M PA R I S O N


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Parameter Compliant Scheme

GF

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02-03

Consented massing Zone of horizontal deviation, articulation

Rear Aerial


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Parameter Compliant Scheme

GF

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02-03

Consented massing Zone of horizontal deviation, articulation

Front Aerial


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Proposed Crescent Massing

GF

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02-03

Proposed massing

Rear Aerial


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Proposed Crescent Massing

GF

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02-03

Proposed massing

Front Aerial


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Parameter Breaches

GF

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02-03

Consented massing Within zone of horizontal deviation Parameter breachHorizontal deviation, articulation

Rear Aerial


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Rear Aerial

GF

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02-03

Consented massing Within zone of horizontal deviation Parameter breachHorizontal deviation, articulation Parameter Breaches


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Extent of Parameter Scheme not Proposed

28%

22%

30%

GF

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Extent of consented massing not used Zone of horizontal deviation, articulation not used

Rear Aerial


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Extent of Parameter Scheme not Proposed

28%

22%

30%

GF

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02-03

Extent of consented massing not used Zone of horizontal deviation, articulation not used

Rear Aerial

N E X T S T E P S


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Phase 5a Squire & Partners

Architectural Language

FOR ILLUSTRATIVE

PURPOSES ONLY


27th July 2016

Phase 5a Squire & Partners

Architectural Language

FOR ILLUSTRATIVE

PURPOSES ONLY


27th July 2016

Historical Context

Rococo Rotunda, Ranelagh Gardens Rococo Rotunda interior, Ranelagh Gardens

Chelsea Porcelain Factory, C.1745Wellington Square, Chelsea

Former Artist’s residence Chelsea

Materiality


27th July 2016

F A Ç A D E & F E N E S T R A T I O N

1. Louis Sullivan, Buffalo2. Adolf Loos, Vienna 3. Glasgow School of Art, Charles Rennie Mackintosh

1. 2. 3.

TRADITIONAL GEORGIAN TERRACE HOUSE DECORATIVE ELEMENTS



1. 2. 3.




1. 2. 3.




1. 2. 3.

TRADITIONAL GEORGIAN TERRACE HOUSE DECORATIVE ELEMENTS TRADITIONAL GRID MODERN INTERPRETATION

4. Darwen terracotta & glaze5. CNC cut Travertine6. Formal front, expressive back

4. 5. 6.

Louis Sulivan, Buffalo

Adolf Loos, Vienna Sir John Soane Museum, London

Glasgow School of Art, C.R.Mackintosh

Darwen terracotta & glaze CNC cut Travertine

Generous Texture & Detail

Materiality


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Antique furniture with timber marquetry and patterning

Embedded marqetry, Caruso St. John

Stone facade with stone inlays and patterns, Pisa, Italy Decorative column with inlayed stone, Orvieto, Italy

Marquetry

Materiality


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1. 2. 3.




1. 2. 3.


Louis Sulivan, Buffalo

Brass Inlay Detail, Carlo Scarpa, Olivetti Showroom

Glasgow School of Art, C.R.Mackintosh

Inlay detail by Rients, Wimpole St. LondonBone inlay in �sh scale by Omero Design

Contemporary Marquetry / Material Inlays

Materiality


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Cadbey Bronze Portland Grove Whitbed

LimestonePortland Bowers Basebed

Material Palette - Front Elevations

Limestone Limestone Limestone & Ceramic Inlay Sandstone White CeramicTerrazzoPortland Basebed with Ceramic Marquetry Inlays

Polished White Halldale Metal Balustrades & Window Frames

Feature Marquetry

01 02 03 05 0806 Bronze0704

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Preferred range of materials

Materiality


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Portland Grove Whitbed

Material Palette - Rear Elevations

LimestoneBrickCeramic White Ceramic TerrazzoPetersen Tegl KolumbaPrivacy screens for side

windowsPolished White Portland Bowers BasebedMetal Balustrades &

Window FramesFeature Marqetry

01 02 03 06 07Bronze 0504

02 03

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05

06 07

Preferred range of materials

Limestone

01

Materiality


27th July 2016

View of Queen’s House, Greenwich across Thames River (Old Royal Naval College in foreground)

Masterplan concept sketch from Design & Access Statement, December 2010

‘Set piece versus pattern of blocks’

Composition


27th July 2016

Central focal point to Orchard SquareFive Fields Square axis

Composition

Documents

CHELSEA BARRACKS...CHELSEA BARRACKS BLOCK 14 Resident Liaison Group Page 38 27th July 2016 FAÇADE & FENESTRATION 1. Louis Sullivan, Buffalo 2. Adolf Loos, Vienna 3. Glasgow School