S P E C I F I C AT I O N
S P E C I F I C AT I O N
OCCUPANCY (based on NIA)
Occupation Density
Means of escape:
Levels 1-2 - 1 person per 10 sq m
Levels 3-6 – 1 person per 8 sq m
Internal climate:
1 person per 10 sq m (cooling and fresh air)
Lift provision:
Levels 1-2 - 1 person per 10 sq m
Levels 3-6 – 1 person per 8 sq m
Sanitary provision:
1 person per 10 toilet ratio. 120% separate
sex facilities to BS6465-1 2006 + A1 2009
PLANNING MODULE
Ceiling grid set out on a 1500mm grid
STRUCTURAL GRID
The office floor plate has a structural grid with
perimeter column spacing varies between 3200mm
and 7300mm. There are 70 internal columns
located in the centre of the floor plate resulting in
approximate internal clear spans varying between
3200mm and 7300mm.
FLOOR LOADINGS
Office floors generally: 3.8 kN/m 2
12th & 13th floors: 2.5 kN/m 2
(1.0 + 0.85 kN/m 2 for partitions,
raised floors and ceiling services)
Lift lobby & toilet areas: 3.8 kN/m 2
Plant rooms: 7.5 kN/m 2
Areas of roof outside plant areas: 0.75 kN/m 2
Car park and basement: 10 kN/m 2
FLOOR HEIGHTS
Reception floor to ceiling: 4m
Savoy Place Reception floor to ceiling:
5.4m double height space.
Office floor to floor: Varies. Min. height
of 3.2m (levels 4 to 11).
Office floor to ceiling:
Level 1 - 2500mm
Levels 2 & 3 - 2700mm
Level 4 – 2600mm
Levels 5 & 6 - 2440mm
2440mm min. to levels 7 to 13
Raised floor:
Levels 1-3 - 90mm
(structural slab level to top of tile).
Levels 4-6 – 90mm generally,
reduced to 60mm in localised areas.
Structure: 150mm-178mm slab.
TOLERANCES
All dimensions/levels are subject to
design and construction tolerances.
STRUCTURE
The building is steel-framed. Floor plates are
generally hollow pot with concrete topping with
13th floor being normal weight concrete on
metal deck on steel beams. Perimeter beams
are supported by perimeter columns spaced
at varying centres. Overall building stability
is provided by steel moment frames.
EXTERNAL FINISHES
Façade: John Adam St – Rusticated buff
coloured brickwork.
Robert St – Portland stone/rusticated
buff coloured brickwork.
Adam St – Portland stone/rusticated
buff coloured brickwork.
Adelphi Terrace – Portland stone.
Savoy Place – Portland stone.
Roof: Asphalt roof finish generally on concrete
slab. Hot melt with stone paving applied to
terraces at levels 5 & 6.
Doors: Fully glazed doors with anodised
finish applied to aluminium frames.
Main Entrance: Fully glazed doors with
anodised finish applied to aluminium frames.
Savoy Place: Fully glazed doors with anodised
finish applied to aluminium frames.
Adelphi Terrace: Fully glazed doors with
anodised finish applied to aluminium frames.
Windows: Aluminium powder coat frames
with clear double glazed panels.
INTERNAL FINISHES
(OFFICE FLOORS)
Walls: Emulsion painted dry lining.
Floors: 600mm x 600mm fixed access
flooring, medium grade.
Columns: Emulsion painted dry lining.
Ceilings: Aluminium suspended ceiling tile
system to suit 1500mm ( W) planning module.
White PPC finish and acoustic perforations.
Linear panels to incorporate light fittings,
smoke detectors and illuminated signage.
Painted plasterboard margins incorporating
down lighters to perimeter of building.
Blinds: Recess to be provided for Tenants
to install blinds where required.
RECEPTION
Walls: Travertine with decorative
artwork in niches.
Floors: Travertine.
Ceilings: White painted plasterboard.
Reception desk: Bespoke high-quality
reception desk.
LIFT LOBBIES
Walls: Travertine to match existing
in reception area.
Floors: Travertine to match existing
in reception area.
Ceiling: White painted plasterboard
as reception with suspended circular
panels in centre at reception
level only.
Doors: Straight grain European oak stained.
TOILETS
Walls: High level timber & low level laminate
panels behind individual wall mounted handbasins
with illuminated mirror cabinet above.
Mirror cabinets to contain paper towel & soap
dispensers. Laminate access to back of cubicles for
access to cisterns with full height tiled wall to cubicles.
Tiles/painted plasterboard to washroom area.
Laminate panels behind urinals.
Floors: Tiled.
Ceilings: Plasterboard.
Doors/Partitions: Straight grain European oak stained.
Sanitaryware: Close coupled WCs with concealed
cisterns and automatic flushing, and wall hung basins
with polished stainless steel fittings.
SHOWERS
Level 1/Basement: Cyclist changing facilities
provided at level 1, with separate areas for
male & female users. Each area comprises
8no. showers and 88no. lockers. Shower
facilities to be provided to 1.75 x BREAAM.
Office: None provided to office floors.
PASSENGER LIFTS
Number: 8 No. Machine Room Less (MRL)
Passenger Lift serving levels 1-13 inclusive.
Passenger lifts consist of 2 banks, each one
containing 2 number 19 person / 1450kg lifts
and 2 number 26 person / 2000kg lifts.
1 No. Machine Room Less (MRL) Passenger
Lift serving levels 1-3 inclusive.
21 person / 1600kg lift.
Lifts will be operating with a Hall Call
Destination dispatch control system.
Lift speed: 2.5m/s passenger MRL lifts
serving levels 3-13 and 1.6m/s serving levels 1-3.
Internal Lift Finish: High quality bespoke finishes
to include stone flooring and full height mirror
to back. Concealed high-level perimeter lighting.
Passenger lift up peak average interval is less
than 25 seconds assuming handling capacities
of 15% of the building population arriving in
a 5 minute period at level 3 (based on the
occupant densities detailed in section 1).
GOODS LIFT/OTHER
2 No goods/firefighting lifts serving
levels 1 to 13 inclusive. 1 No goods lift
between level 0 and level 2 inclusive.
MECHANICAL INSTALLATIONS
4-pipe fan coils to Cat A space.
Fresh air to the office space is provided
by on floor air handling units. Cooling
to the office space is provided by water
cooled chillers located in the basement.
Heating is provided by gas fired boilers.
DESIGN PARAMETERS
Winter temperature:
Outside:
-1°C db, saturated
Internal offices:
Designed to 21ºC ±2ºC, no RH control
Toilets:
Designed to 21ºC ±3ºC, no RH control
Reception:
Designed to 21ºC ±3ºC, no RH control
Summer temperature:
Outside:
28º db, 20ºC wb
Internal offices:
Designed to 22ºC ±2ºC, no RH control
Toilets:
Designed to 24ºC ±3ºC, no RH control
ADELPHI – SPECIFICATION
Reception:
Designed to 24ºC ±3ºC, no RH control.
The winter and summer conditions in the reception
will depend on the usage of the doors.
LIGHTING CONTROL
A combination of PIR’s, Timeclocks, Dimming and
Day light Harvesting shall be used to control the
lighting and minimise the energy consumption.
FRESH AIR SUPPLY
Offices: 13.2 litres/second/person based
on 1 person per 10m 2 net office area.
Toilet: 6 air changes/hr extract minimum,
mechanically ventilated.
STANDBY POWER
1 No. 1200kW/1500kVA standby generator to
support Landlord and Tenant loads with future
provision for a second generator of equal capacity.
COOLING LOADS
Lighting: 10 W/m 2
Small power: 25 W/m 2 locally,
diversified to 15 W/m 2 across the floor.
ACOUSTIC LEVELS
Office: NR40
Toilets: NR45
Staircases: NR40
Reception area: NR45
Base building will be designed to achieve
limiting noise levels from engineering
services operating under normal conditions.
ELECTRICAL INSTALLATION
The electrical installation for base build consists
of the following: Incoming: 11kV 3.2mVA supply
from two separate power feeds.
Landlords’: Arranged as West and East HV switchgear.
Main LV switchboards comprise of 3 boards: two in
the East and one in the West. Each main switchboard
is supplied by two 1mVA transformer in an A & B
arrangement.
Tenant distribution boards shall be installed on
a floor-by-floor basis in both East and West riser.
DESIGN CRITERIA
Tenant electrical load allowance: Lighting 10 W/m 2
Small power 25 W/m 2 locally, diversified to 15 W/m 2
across the floor.
LIGHTING
Offices: General purpose lighting comprising
recessed modular luminaries selected to comply
with the design intent of CIBSE Lighting Guide LG7.
Reception: Feature lighting.
LIGHTING LEVELS
Offices:
400 lux maintained illuminance at working
plane dependent on tasks (screen based or paper)
Main Staircase:
150 lux maintained illuminance on all treads.
Secondary Staircase:
150 lux maintained illuminance on all treads.
Toilets:
200 lux maintained illuminance at floor level.
Reception:
200 lux maintained illuminance at floor level
general areas, 300 lux maintained illuminance
over desks and sitting areas.
BUILDING MANAGEMENT SYSTEM
A BMS system will control the primary mechanical
services systems, via a series of networked
outstations connecting back to a user interface head
end. Intelligent outstation panels will be distributed
through the building generally in plantrooms and
service risers. Tenants will have the facility to extend
and interface with the base build BMS system.
PROTECTIVE INSTALLATIONS
Fire service: Fire detection and warning system
is based upon simultaneous evacuation
in line with Building Control requirements.
This ‘open protocol’ system serves the landlords
areas with tenant interface panels to each individual
office tenancy. Refer to latest version of approved
Fire Strategy.
Note: The life safety systems will comply with
the requirements of the Building Regulations.
Security system: Access control is provided from
the landlord demise to the tenant areas (via control
of lifts and stairs) and also controls access at the
external entrances (doors and roller shutters) to
the building and plant areas. The Landlord’s system
can be extended to cover the Tenant demise.
CCTV coverage is provided at external entrances.
COMMUNICATION INSTALLATION
Cable trays are provided in risers to all tenant
floors. Communications installation by tenant.
Existing data and voice services within the building
may be extendable via request to the Landlord.
BUILDING MAINTENANCE
Window cleaning: Generally via mobile elevated
platform for all sash windows. Scaffold access
required for casement windows (levels 5 to 10)
to northern and southern elevations. Internal atria
glazing accessed with removable access gantry
suspended from high level.
Internal cleaning: Cleaners facilities are provided
to both main cores at all levels to serve the office
floor plates.
ACCESSIBILITY
Step free access is provided into the building
and into the office accommodation from the
internal circulation spaces.
CAR & BICYCLE PARKING
Car parking spaces: 69no. approx. parking
spaces available in the secure basement car park.
Accessible car parking spaces to be provided
in accordance with WCC min. standards.
Bicycle spaces: 245no. spaces to be provided
within the secure basement parking area.
These are located at basement level and access
is via Savoy Place.
LOADING BAY
The loading bay is located at level 1 off Lower Robert
Street and is accessed via the underground roadway
leading down from York Buildings to the west of
the site. There are 3 No. shared service vehicle bays
provided (with 1no. designated waiting area in Lower
Robert Street) and a trolley route via goods lift to
levels 1 & 2.
Access via goods/firefighting lifts is also available
from this area to all office floors.
Vehicles larger than a 7.5 tonne panel van will
access the site via Savoy Place, entered at its
eastern end from the Victoria Embankment.
REFUSE COMPACTOR
To be provided in the new refuse area at level 0.
BREEAM and PART L COMPLIANCE
BREEAM rating – “Very Good” (targeted)
EPC rating – B (targeted).
ADELPHIBUILDING.COM