The Building

 UseFloorIPMS3 (Office)IPMS3 (Amenity Terrace)
   Sq mSq ftSq mSq ft
 Plant25th Floor----
 Restaurant (dbl height)
24th Floor
23rd Floor
Plant / Void
22nd Floor
21st Floor
 Office20th Floor852.39,174--
 Office19th Floor852.39,174--
 Office18th Floor852.39,174273.92,948
 Office17th Floor1122.712,085--
 Office16th Floor1122.712,085--
 Office15th Floor1122.712,085--
 Office14th Floor1122.712,085--
 Office13th Floor1122.712,085--
 Office12th Floor1069.411,511--
 Office11th Floor1119.712,052--
 Office10th Floor1119.712,052--
 Office9th Floor1117.012,023--
 Office8th Floor1123.712,096--
 Office7th Floor1123.712,096--
 Office6th Floor1123.712,096--
 Office5th Floor1123.712,096--
 Office4th Floor1123.712,096--
 Office3rd Floor853.39,185--
 Office2nd Floor853.39,185--
 Office1st Floor815.18,774--
 Office (or enlarged reception)
Office Entrance/Lift Lobbies
Grnd Floor
Grnd Floor
Grnd Floor
 Plant/Parking/StorageBasement B112.9139--
 Plant/ParkingBasement B2----
 Plant/Parking/StorageBasement B313.2142--
 PlantBasement B4----
 Total 22,012.7236,945273.92,948

How the building works. Floor by floor

Office floor plates of 8,774 sq ft – 12,096 sq ft provide stunning views of the city and beyond.
Highly efficient, with limited columns, space can be vertically connected to encourage collaborative working. A 3,000 sq ft private terrace on the 18th floor allows its occupants to work without walls.

Ground Floor

Typical Lower Floor (1st to 3rd Floor)

Typical Mid Floor (4th to 11th Floor)

Typical Upper Floor (12th to 17th Floor)

Typical Upper Floor (18th to 20th Floor)

Outline Specification

The development is expected to achieve:-

  • A BREEAM Accreditation of Excellent.
  • EPC Rating – target B.


  • The building has been developed generally in accordance with the guidelines set out in the British Council for Offices Design Guide 2014.
  • The development has a gross external area of approximately 35,000 square metres. Above ground there are 20 floors of office space together with a two storey restaurant at Levels 23 and 24. The building is generally serviced from the basement and upper floor plant areas at Levels 21 and 22.

Office Fit-Out

  • Office areas will be fitted to Category A standard including all building services.
  • The ceiling will comprise perforated metal plank tiles incorporating 1200 x 300 flush mounted LED luminaires.
  • Raised access flooring.
  • Heating and cooling is provided to office areas by a 4-pipe system with FCU controls zoning 6 metres wide and 4.5 metres deep at perimeter.
  • 103 Colmore Row has 12 lifts including a single dedicated lift serving the roof top restaurant and a single 30-person/3,000 kilogram goods lift. There is a single passenger lift access to bicycle and car parking levels.
  • Separate male and female changing facilities and shower cubicles located at basement floor level plus WC’s, drying room and cleaners cupboard.

Occupational Criteria

  • The building has a means of escape occupancy ratio based on 1-person per 6 square metres for the office accommodation.
  • Toilet accommodation is provided at the density of 1-person per 10 square metres in an arrangement of unisex super loos.
  • Lift installations provide for an occupancy of 1-person per 8 square metres on floors 1 – 9 and 1-person per 10 square metres on Levels 10 to 20 inclusive.
  • The cooling and heating systems are based upon
    1-person per 8 square metres for floors 1 – 11 and
    1-person per 10 square metres for Levels 12 – 20.
  • The building will be designed to accommodate 24-hour/7-day-a-week access.
  • Floor loading – office accommodation 3.5 kn/m2 (plus 1 kn/m2 for partitions).

Building Services Criteria

  • External design conditions -
    Summer – 28°c / Winter -4°c.
  • Internal design conditions -
    Office area – Summer 22°c / Winter 22°c.
  • Office Fresh Air Ventilation - 12 litres per person.
  • Tolerances – based on room temperature plus or minus 2°c at point of measurement.
  • Lighting - Office areas: 375 – 400 lux.
    - Toilets: 200 – 250 lux.
    - Staircases: 150 lux.
    - Reception: 250 – 300 lux.
    - Car Park: 200 lux.


Practical Completion of the development is
anticipated in January 2021.

Professional Team

Project Manager:

Planning Consultant:
GW Planning

Doone Silver Kerr Architects

Cost Consultant:

Principal Designer (CDM):

Structural Engineer:
Davies Maguire

M&E Services Engineer:
Watkins Payne Partnership

Environmental Consultant/ BREEAM:
Watkins Payne Partnership

Vertical Transportation Engineer:
Hilson Moran Partnership

Fire Engineering Consultants:
Fire Ingenuity

Stephenson Harwood LLP

Cushman and Wakefield
Knight Frank LLP

Dining. On a whole new level
The two-storey bar and restaurant at the top of 103 Colmore Row will be an iconic new venue with breath-taking vistas
of the city and beyond. Diners will be carried to the restaurant and bar via a dedicated lift.
A ground floor brasserie will enjoy some of the best footfall in the city.

Inside Storeys. The People behind 103

“When you have worked on a project, be it on the demolition or the construction, when the building is finished you get a real sense of job satisfaction, knowing that you have played a part in something that will be there for years to come. I can’t say I’m a fan of Brutalist concrete buildings, so taking the Natwest Tower down was actually quite enjoyable. The new 103 Colmore Row building will be a fantastic addition to the city skyline.”

Bob Brown. Top Crane Operator