The superstructure is an exposed reinforced concrete frame with office floors formed of coffered concrete slabs supported by reinforced concrete columns.

Each floor features a full-height glazed perimeter façade, with active glazing up to level five and a more conventional double arrangement across levels six and seven, where the floor plate is stepped back to providing extensive local terracing to the front and rear of the building.

Solar control blinds are included throughout the external façade.

Internally the premises are separated from the internal atrium by full height glazing, with new internal terracing created through installation of a steel and cross laminated timber infill from level two.

Floor occupancy

Office floor, WC accommodation and
on floor M&E services have been
designed to an average occupational
density of
1 person per 8 sq m.
Fifth floor is served by four escape
stairs.
MOE Occupancy factor based on a
maximum of 1 person per 6 sq m.

Finished floor to ceiling height:
Reception                – 7.0m
Office                        – 3.4m
Raised floor zone – max 265mm.

Structural grid

The exposed reinforced concrete ribbed slab is set within a regular column grid formed by circular columns generally at a 9m grid pattern. Slab thickness is 475mm. The soffit ribs are typically set out at 1.5m centres and 1.0m wide.

Floor loadings

Office floor loading is 5.0k N/m2.
The new atrium terrace areas are 2.5 kN/m2 + 1.0 kN/m2 for partitioning.

iMechanical Services (heating ventilation and cooling) has been designed to operate within +/- 2oC in:
Summer: 20oC
Winter: 24oC
Ventilation rates of 14 ltrs / second / person (at 1 person per 8m2).

The HVAC system comprises a “displacement” solution. Air Handling equipment is situated locally on floor, drawing in (and extracting) air from louvres in the façade, which is then distributed into the deep raised access floor void. Air is returned at high level back into an air plenum then either recirculated back through the Air Handling Unit or extracted.

Low temperature hot water and chilled water is supplied via. central Air Source Heat Pump equipment situated at roof level.

Trench heating and cooling to the office perimeter together with the active façade on deeper floors, works to heat or cool the façade in the winter and summer modes.

OTIS lifts

6 x 21 person, 1600kg passenger lifts.
4 x 8 person, 630kg fireman’s lift.
1 x 40 person, 3000kg goods/
passenger lift.

The building benefits from two electrical supplies providing 4.2MVA of power to the building provided by UKPN from an adjacent sub-station on the corner of Gough and Elm Street.
Life safety systems are supported by two back-up generators located in a dedicated enclosure external to the building to the south-east corner accessed from Gough Street.

Small Power
On floor small power allowances are 23 W/m2 with 80% diversity.
Lighting:
The lighting installation comprises of LED luminaires (Zumtobel) and is compliant with BCO and LG7 standards.
A dali based lighting control system complete with proximity sensing, perimeter day light compensation and emergency lighting, is provided to allow future flexibility with a minimum of 300 lux at desk height.

Lighting installation which complies
with BCO and LG7 standards.

The installation comprises of LED
luminaires (Zumtobel).

A lighting control system is provided to
allow future flexibility with the control
of the lighting. 400 lux (at desk height).

The building benefits from 24/7 security and entry is via the reception speed gates using sensor access control.

Customers’ own demised premises will be fitted with a dead lock, with access control to be fitted to suit their own requirements as part of their Cat B fit out.

Embodied and Whole Life Carbon: 204 kg CO2e / m2
NABERS 4*
EPC ‘B’ rating
Energy Use Intensity: Base building 91.63 kWhe/year/m2NIA, Whole Building Energy 172.61 kWhe/year/m2 NIA assuming a typical BCO office tenant usage.
BREEAM (Refurbishment and Fit Out) 2014: Excellent
Ecology: With a new external terrace with raised planters at roof level and internal garden, ecology at 200 GIR has been increased significantly.
Well V2 core Enablement: evidence to be shared with incoming occupiers in support of their own commitments to Well through fitting out the premises beyond Cat A

Chilled Water - An upgrade allowance of 10W/m2 over the net floor area has been allowed on the main central chilled water system.

Power - A rising busbar system within each tenant riser will be provided with space provision for 2 no future tap-off units for tenant fit-out on each floor level.

Underfloor Power - Underfloor busbar tracking will be provided as part of the tenant’s Category B fit-out.

1 cycle rack per 10 people (Cycle racks 252)
1 locker per 10 people (Lockers 260)
1 shower per 100 people (Showers 24)

Open plan office floors shall achieve a rating of NR38.