Level 3 - East Croydon (Residential Design Efficiencies)

Question 1

On East Croydon you mention wall to floor ratios, what was this?

Answer 1

0.57 to 0.64

by using bolt on balconies this ratio could be closer to 0.4

Question 2

What would you expect as a good wall to floor ratio on a residential scheme?

Answer 2

0.4

Question 3

What would you expect to have a better w:f ratio – resi or office?

Answer 3

Office as usually less articulation and simple shape building

Question 4

What are other design efficiencies you are aware of?

Answer 4

Wall to Floor
Net to Gross
Nr of Cores
Solid to Glazing
Nr of lifts per unit (resi)

Question 5

On East Croydon what were the key factors effecting cost?

Answer 5

Frame and Upper floors from £26-33/ft²

External Walls & Doors £33-40/ft²

Balconies and Terraces ranged from £5-10/ft²

Services - £34/ft²

Overall Shell & Core was £165-185/ft²

Question 6

On East Croydon, what was the £/ft² of the superstructure on this project?

Answer 6

It was an element cost model but wasnt split into overall superstructure cost

Frame and Upper floors ranged from £26-33/ft²

External walls = £33 - 40ft2

Overall Shell & Core was £165-185/ft²

Question 7

On East Croydon, what was the £/ft² (GIA) of the Balconies on this project?

Answer 7

Balconies and Terraces ranged from £5-10/ft²

Question 8

On East Croydon, what was the £/ft² (GIA) of the Facade on this project?

Answer 8

External Walls were £33-40/ft²

Question 9

On East Croydon, what was the overall £/ft² on the GIA

Answer 9

Shell & Core was £165-185/ft²

Affordable fit out - £100 - 155/ft²

Private fit out - £130 - 185/ft²

Ranged from £260 - 276ft²

Excludeing external works, incoming services and renewables

Question 10

What were some of the design efficiencies you commented on on East Croydon?

Answer 10

On East Croydon I reviewed design efficiencies so I could advise the client how the design had changed.

I commented on:
Net:Gross
Wall:Floor
Nr of balconies
Nr of units per core
Nr of lifts
Nr of storeys

Question 11

On East Croydon, what was the overall £/ft² on the GIA

Answer 11

Ranged from £260 - 276ft²

Excludeing external works, incoming services and renewables

Question 12

How else could you improve Wall:Floor ratio

Answer 12

Looking at the height of the building (reducing slab to slab / floor to ceiling heights)