Esther Karanja - Architecture & Urban Planning Portfolio

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01

Kenya Railways City Redevelopment Nairobi, Kenya

02

Mwea Agriculture & Technology Campus Mwea, Kenya

03

Operation RIC: 2070 South Scheveningen The Hague, Netherlands

04

Shauri Moyo Affordable Housing Nairobi, Kenya

05

Built Works

Nairobi, Kenya

06

Cities

Nairobi, Kenya Hargeisa, Somaliland Delft, The Netherlands The Hague, The Netherlands Rotterdam, The Netherlands





Original Street Configurations

KENYA RAILWAYS

TECHNICAL UNIVERSITY OF KENYA

Commercial Public Purpose Mixed-Use Residential Dominant Heavy Industrial Light Industrial High Density Residential Educational Agriculture Recreational Transportation

Suitability Map

Land-Use Map


SITE PLAN

12

11 3

4 3

7

10 9

4 8 2

2 1

2 6

9

5 7 6

1 2 3 4 5 6 7 8 9 10 11 12

Park Urban Farming Mixed Use Commercial Dominant Mixed Use Residential Dominant Secondary School High Density Affordable Housing Public Purpose Mixed Use Development Waterway Primary School Heavy Industrial Light Industrial


SITE PLAN & MASS MODEL

Green Open Space and Urban Agriculture

Non-Motorized Transport Network

BRT Line & Motorized Transport Network


THE ORBIT: MIXED USE DEVELOPMENT

01 Original concept form

02 Form made porous for pedestrian circulation

03 Dividing road sunken to create uninterrupted pedestrian thoroughfare

04 Individual towers connected on strategic floors for synergy Retail Office Residential

05 Massing split up for dynamism & introduction of terraces along the height of the MUD

Hotel Convention Mechanical Parking


SITE PLAN

2

6 8

1 3

7

5 8

4

1 2 3 4 5 6 7 8

Mixed Use Tower 01 BRT Station Pedestrian Thoroughfare Parking Silo Hotel & Convention Tower Mixed Use Tower 02 Bike Parking and Park Entrance Vehicular Underpass


SUSTAINABILITY ANALYSIS Environmental


SUSTAINABILITY ANALYSIS Social


SUSTAINABILITY ANALYSIS Economic




Main Ordering Principle (axial)

Bubble Diagram

Circulation Sketch

Suitability Map


SITE PLAN

16 16

1

2

18

3 16

17

6 13 4

10

5

9

7

8

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15

12

11 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

Covered Rice Market Open-air Market Restaurant Main Entrance & Parking Multi-Purpose Rooms Administration Block Tuition Block 01 Tuition Block 02 Plant Science & Materials Testing Labs Plaza Parking Student Cafeteria Student Housing Sports Field Service & Housing Entrance Demo Gardens canal fed from River Thiba Riparian Reserve River Thiba


FORM MAKING

Restaurant

Market

Training Center


MATERIALITY


SUSTAINABILITY ANALYSIS

Rainwater harvesting to supplement site supply Raised roofs, screen walls & stack ventilation for passive cooling since the climate in Mwea is hot and humid Rice straw clay brick walling to promote circularity & sustainability

Locally available rice straw clay bricks which are easy to fabricate on site and require low technical skill

Locally available rice straw bale walls which are easy to fabricate on site and require low technical skill

Highly circular steel structure which is easily recoverable and is sourced from recycled material



OPERATION Sakshi Ahuja

RIC: 2070 South Scheveningen

Esther Karanja

Hazem Mounir

Jac Torres-Gomez


RIC!



Users of South Scheveningen


How Users Interact in the 2070 South Scheveningen Map Source:FlippedNormals, 2022


resilience Passive cooling strategies for existing & new houses. Incorporation of a wind tunnel in any new or regenerative developments. Incorporating barrier project into vision for the South Beach.

South Scheveningen 2070 Strategy


inclusivity Free public Wifi all over South Scheveningen. Introduction and addition of play spaces and green open spaces.

South Scheveningen 2070 Strategy


connectivity Shaded pedestrian & cycling bridge between the North & South beach Shared open space between Duindorp & the Marina

South Scheveningen 2070 Strategy



RIC!

Hazem Mounir hazemmounir96@gmail.com

operationric@tudelft.com

Sakshi Ahuja sakshiahujaa1@gmail.com

Jac Torres-Gomez jac.torres-gomez@wyndham.vic.gov.au

Esther Karanja esthernyamburakaranja@gmail.com




SITE PLAN DEVELOPMENT

Main Ordering Principle (radial)

Bubble Diagram Sketch

Zoning Sketch


SITE PLAN

2 2 1 3

3

12

4

12

1 5

5

4

8 5

5

7 9

8

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9 1

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1 2 3 4 5 6 7 8 9 10 11 12

Entrance Riparian Reserve 3-Bedroom Maisonette Clusters + Shops 2-Bedroom Maisonette Clusters + Shops Community Center Primary School Secondary School 2-Bedroom Apartment Clusters + Shops 1-Bedroom & Studio Apartment Clusters + Shops Informal Stalls Jua Kali (Light Industrial Cottage Industries) Shops Central Park


AFFORDABILITY STRATEGY: INCREMENTALISM 2-Bedroom Maisonette Unit Original Unit (89sqm)

Transformed for single family (105sqm)

Transformed for subletting (105sqm)

Ground Floor

First Floor

3-Bedroom Maisonette Unit Original Unit (106sqm)

Ground Floor

First Floor

Unit transformed for subletting (119sqm)


AFFORDABILITY STRATEGY: MATERIALS & LABOUR

ENVIRONMENTAL SUSTAINABILITY STRATEGY

Open MDF timber shelving

Polished Concrete Flooring: approx Kshs1500/sqm similar to tile but more durable Interlocking Brick Walls: approx Kshs600/sqm 25% reduction on masonry wall Bamboo Plywood Partition Walls: approx Kshs500/sqm 37.5% reduction on masonry wall Open MDF timber shelving

RETHINKING THE CONTEMPORARY HOUSING UNIT In addition to implementing incremental design, these are measures taken to achieve a 30.8% reduction in delivery cost by employing a combination of alternative construction materials and finishes and leveraging the local labor force to bring down the construction cost to KES 22,490/sqm With these cost reductions and assuming a site and services project, the rent prices per month with a ROI period of 8.5 years Studio Apartments Kshs 6,600 Kshs 6,981 LABOUR

FINISHES

STRUCTURE

1 Bedroom Apartments Kshs 10,004

Typical cost: 30% of total construction cost.

Typical cost: 14% - 20% of total

Typical cost: 18% - 22% of total

Strategy: The current residents of Shauri

construction cost.

construction cost.

Moyo are informal manual workers. Having

Strategy: Alternative flooring material.

Strategy: Interlocking brick walling instead

2 Bedroom Apartments

them provide subsidized labor during

Substitution of cabinetry and wardrobes

of masonry (25% cheaper)

Kshs 12,995

construction for cheaper rent prices when

with open MDF or Plywood shelving.

Precast concrete slabs instead of poured

the project is complete.

Bamboo plywood internal partition walling

concrete (23% cheaper)

2 Bedroom Maisonettes

instead of masonry.

Precast concrete columns instead of

Kshs 24,501

Plaster and paint wall finishes.

poured concrete (21% cheaper)

Approx reduction:

Approx reduction:

5%

13.8%

Approx reduction: 12%

Kshs 10,721

3 Bedroom Maisonettes Kshs 29,297





NAIROBI, KENYA


HARGEISA, SOMALILAND


DELFT, THE NETHERLANDS


THE HAGUE, THE NETHERLANDS


ROTTERDAM, THE NETHERLANDS


thank you


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