Verde SW1

Building Details

Specification

DESIGN LIFE

The refurbished building will have a minimum service life of the following: structure 60 years, external envelope 25 years, internal elements and services 15 years, internal finishes and decorations 5 years, covered where applicable by collateral warranties that are valid for this period as a minimum.

PART L

Under Building Regulations Part L: 2010 the building is required to meet the refurbishment requirements as detailed in Part L2B of this regulation.

SPACE PLANNING

The building is designed to accommodate both open plan and cellular office configurations.

The building design module is 1.5m.

Ceilings, floors and perimeter services have been coordinated for the ease of installation of partitions.

OCCUPATION DESIGN

The offices are designed to accommodate an occupancy ratio of one person per 8m² NIA.

WC accommodation is designed to accommodate an occupancy of one person per 8m² NIA based on a 60:60 split (BS 6465:2009). Wheelchair accessible WC’s are provided on the basis of a minimum one per floor.

Lifts – 1 person per 8m² NIA

Means of Escape – 1 person per 6m² NIA

HOURS OF OCCUPATION

The building will operate 24 hours a day 7 days a week.

FLOOR TO CEILING HEIGHTS
Offices 2750mm on floors 1 - 8
  2900mm on floors 9 - 10
FLOOR LOADINGS

The building has been designed to the following imposed loads:

Office Areas - General
(+ 5% extra for storage on floors)
2.5kN/m²
Office Areas - Partitioned 1.0kN/m²
Plant room Areas 7.5kN/m²
RAISED FLOOR

Medium grade tiles throughout office areas (to PSA Method of Building Performance Specification MOB PF2/SPU March 1992).

Office floor void zone - 170mm (top of existing slab/top of raised floor tile).

SUSPENDED CEILINGS

Fully accessible perforated metal suspended tile ceilings, incorporating air conditioning diffusers, lighting, sprinklers, fire alarm detectors and emergency evacuation speakers.

WC FINISHES

Full height WC ‘superloo’ cubicles, with ceramic sanitary ware and sensor controlled fittings, stainless steel ironmongery and a porcelain tile floor finish.

RECEPTION FINISHES
  • • Main reception: 200m²/10.5m high, 2153ft²/113ft high
  • • East reception: 140m²/6.8m high, 1507ft²/22ft high
  • • North reception: 125m²/6.8m high, 1345ft²/22ft high

Full height double glazed entrance

Natural stone floor and wall cladding

Stainless steel ironmongery and glass security barriers

Feature Lighting


AIR CONDITIONING DESIGN

Office areas are currently designed as 4-Pipe FCU in the perimeter, 2-Pipe FCU in the centre.

External
Winter
Dry Bulb -4°C
 
Summer
Dry Bulb 29°C
Wet Bulb 20°C
 
Internal
General
Offices (summer) 24°C ± 2
Offices (winter) 22°C ± 2
INTERNAL HEAT GAINS
Occupancy 10 W/m²
Lighting 8 W/m²
Equipment 25 W/m²
VENTILATION RATES

Air Conditioned Areas: Fresh air rates 12 litres per second per person, based upon one person per 8m².

Ventilated Areas (WC’s): Extract allows for 12 air changes/hour.

LIGHTING

The office luminaires shall be high frequency fluorescent lamps or LED. All luminaires provided by the office tenant shall be dimmable and have day-light linking. Average maintained lux levels:

Area/space Open plan office space
Illumination level (lux) 350-500 lux average
Limiting glare index 19

Area/space WC’s, stairs, corridors and lobbies
Illumination level (lux) 200 lux
Limiting glare index 28

Area/space Reception desk
Illumination level (lux) 300 lux
Limiting glare index 22

Area/space Management/staff rooms
Illumination level (lux) 300 lux
Limiting glare index 19
Area/space Store and plant rooms
Illumination level (lux) 200 lux
Limiting glare index 25

SMALL POWER

The office installation is designed to accommodate equipment loads based on net lettable area.

Office Tenant Load Lighting
Power Allowance (W/m²) 10 W/m²

Office Tenant Load Small Power
Power Allowance (W/m²) 25W/m²

Office Tenant Load On Floor Mechanical
Power Allowance (W/m²) 4 W/m²

Allowance for spare capacity is 15%.

INTERNAL NOISE CRITERIA

Noise levels generated within the building will not exceed the following values measured at a distance of 1.5m from any grille or other radiating surface:

Office areas NR 38
Reception NR 40
Toilets, stairs, corridors and lobbies NR 45
FIRE PROTECTION

The landlord’s fire alarm system has been provided in accordance with BS 5839 Part 1 2013 and BCO requirements to comply with the requirements of a Category L2 system.

A landlord’s voice alarm system has been installed throughout the building complying with BS5839-8: 2013.


LIFT INSTALLATION

Passenger lifts are designed to achieve an interval not exceeding 30 seconds based upon a handling capacity of 15% of the overall occupation in a five minute period.

The passenger lifts in the property operate at a speed of 2.5m/sec.

The main group of passenger lifts will use the latest Destination Control that satisfies the up peak handling capacity and also lunchtime traffic.

  • • Eight passenger lifts: 24 person
  • • Office goods lifts: 33 person + 24 person
  • • Firefighting lift: 8 person
BICYCLE STORAGE

400 bicycle racks + 40 folding cycle storage lockers are provided within the basement.

SHOWERS

WC’s, 40 showers and 400 lockers (including wheelchair accessible facilities) are provided at basement level for building users and cyclists.

KITCHENETTE

Potable cold water and capped off drainage services with provision for extract systems are provided on each floor adjacent to service riser cores.

Provision allowed for a full production kitchen adjacent to central core.

TELECOMMUNICATIONS

Cable ducts entering the building are present along with cable containment within the vertical risers and BOH areas. Final containment to be provided by the tenant.

Space is provided at roof level for satellite dishes.

GENERATOR PROVISIONS

A 500kVA diesel driven standby generator will be installed to support the essential life safety systems only. Furthermore, space will be provided for a generator to support tenants’ comms and small power systems.

SECURITY

A CCTV system is provided to monitor the external doors to the building and basement area. A fully expandable access control system is provided to all external entrances and doors to tenant areas. An access control computer is installed at the reception desk with facilities for the issuing of identification badges. The access control system is also linked to the CCTV system to provide intruder alerts and monitoring of personal traffic.

SUSTAINABLE DESIGN FEATURES

Verde SW1 includes a number design features and sustainable technologies which are summarised as follows:

  • • Heat recovery utilised in the air handling units to reduce heating/cooling requirements
  • • Waterside free cooling through cooling tower system and high temperature fan coil units
  • • Airside free cooling provided by centralised AHUs
  • • Advanced BMS control and energy monitoring functions
  • • Base design high temperature fan coil units with direct current electronically commutated (EC/DC) motors allowing full range of speed control providing optimum energy efficiency throughout the year
  • • Domestic hot water provided by a combined heat and power unit (CHP)
  • • High efficiency condensing boilers with ultra low NOx emissions
BUILDING PERFORMANCE
  • • A BREEAM (as designed) rating of ‘Excellent’
  • • An (as designed) EPC rating of B37