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3 Assembly Square, Britannia Quay, Cardiff 3 Britannia Quay 4,405 - 18,523 SF of Office Space Available in Cardiff CF10 4PL
Matterport 3D Tours
Highlights
- 3 Assembly Square offers high-calibre waterfront office accommodation in a BREEAM Excellent building with views of Roath Basin and Cardiff Bay.
- Convenient for drivers with on-site parking and an additional parking facility nearby, positioned about 12 minutes from the M4.
- Features end-of-trip facilities, concierge reception, kitchen fit-out services, 24-hour security and access, cycle storage, and more.
- Pedestrian-friendly workplace within a 10-min walk of Cardiff Bay (links to Valley Line and Main Line service) and Mermaid Quay’s countless amenities.
All Available Spaces(3)
Display Rental Rate as
- Space
- Size
- Term
- Rental Rate
- Space Use
- Build-Out
- Available
Available on effective full repairing and insuring leases via a service charge.
- Use Class: B1
- Open Floor Plan Layout
- Space is in Excellent Condition
- Central Air Conditioning
- Bicycle Storage
- Energy Performance Rating - B
- Modern interior
- Fully Built-Out as Standard Office
- Fits 23 - 74 People
- Can be combined with additional space(s) for up to 18,523 SF of adjacent space
- Raised Floor
- Shower Facilities
- Lots of natural light
- Fully fitted
Available on effective full repairing and insuring leases via a service charge.
- Use Class: B1
- Open Floor Plan Layout
- Space is in Excellent Condition
- Central Air Conditioning
- Bicycle Storage
- Energy Performance Rating - B
- Fully fitted
- Fully Built-Out as Standard Office
- Fits 13 - 40 People
- Can be combined with additional space(s) for up to 18,523 SF of adjacent space
- Raised Floor
- Shower Facilities
- Lots of natural light
- Modern interior
Available on effective full repairing and insuring leases via a service charge.
- Use Class: B1
- Open Floor Plan Layout
- Space is in Excellent Condition
- Central Air Conditioning
- Bicycle Storage
- Energy Performance Rating - B
- Modern interior
- Fully Built-Out as Standard Office
- Fits 12 - 36 People
- Can be combined with additional space(s) for up to 18,523 SF of adjacent space
- Raised Floor
- Shower Facilities
- Lots of natural light
- Fully fitted
| Space | Size | Term | Rental Rate | Space Use | Build-Out | Available |
| 1st Floor | 9,154 SF | Negotiable | $30.55 /SF/YR $2.55 /SF/MO $279,682 /YR $23,307 /MO | Office | Full Build-Out | Now |
| 2nd Floor, Ste B | 4,964 SF | Negotiable | $30.55 /SF/YR $2.55 /SF/MO $151,665 /YR $12,639 /MO | Office | Full Build-Out | Now |
| 3rd Floor | 4,405 SF | Negotiable | $30.55 /SF/YR $2.55 /SF/MO $134,586 /YR $11,216 /MO | Office | Full Build-Out | Now |
1st Floor
| Size |
| 9,154 SF |
| Term |
| Negotiable |
| Rental Rate |
| $30.55 /SF/YR $2.55 /SF/MO $279,682 /YR $23,307 /MO |
| Space Use |
| Office |
| Build-Out |
| Full Build-Out |
| Available |
| Now |
2nd Floor, Ste B
| Size |
| 4,964 SF |
| Term |
| Negotiable |
| Rental Rate |
| $30.55 /SF/YR $2.55 /SF/MO $151,665 /YR $12,639 /MO |
| Space Use |
| Office |
| Build-Out |
| Full Build-Out |
| Available |
| Now |
3rd Floor
| Size |
| 4,405 SF |
| Term |
| Negotiable |
| Rental Rate |
| $30.55 /SF/YR $2.55 /SF/MO $134,586 /YR $11,216 /MO |
| Space Use |
| Office |
| Build-Out |
| Full Build-Out |
| Available |
| Now |
1 of 6
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Map
1st Floor
| Size | 9,154 SF |
| Term | Negotiable |
| Rental Rate | $30.55 /SF/YR |
| Space Use | Office |
| Build-Out | Full Build-Out |
| Available | Now |
Available on effective full repairing and insuring leases via a service charge.
- Use Class: B1
- Fully Built-Out as Standard Office
- Open Floor Plan Layout
- Fits 23 - 74 People
- Space is in Excellent Condition
- Can be combined with additional space(s) for up to 18,523 SF of adjacent space
- Central Air Conditioning
- Raised Floor
- Bicycle Storage
- Shower Facilities
- Energy Performance Rating - B
- Lots of natural light
- Modern interior
- Fully fitted
1 of 7
Videos
Matterport 3D Exterior
Matterport 3D Tour
Photos
Street View
Street
Map
2nd Floor, Ste B
| Size | 4,964 SF |
| Term | Negotiable |
| Rental Rate | $30.55 /SF/YR |
| Space Use | Office |
| Build-Out | Full Build-Out |
| Available | Now |
Available on effective full repairing and insuring leases via a service charge.
- Use Class: B1
- Fully Built-Out as Standard Office
- Open Floor Plan Layout
- Fits 13 - 40 People
- Space is in Excellent Condition
- Can be combined with additional space(s) for up to 18,523 SF of adjacent space
- Central Air Conditioning
- Raised Floor
- Bicycle Storage
- Shower Facilities
- Energy Performance Rating - B
- Lots of natural light
- Fully fitted
- Modern interior
3rd Floor
| Size | 4,405 SF |
| Term | Negotiable |
| Rental Rate | $30.55 /SF/YR |
| Space Use | Office |
| Build-Out | Full Build-Out |
| Available | Now |
Available on effective full repairing and insuring leases via a service charge.
- Use Class: B1
- Fully Built-Out as Standard Office
- Open Floor Plan Layout
- Fits 12 - 36 People
- Space is in Excellent Condition
- Can be combined with additional space(s) for up to 18,523 SF of adjacent space
- Central Air Conditioning
- Raised Floor
- Bicycle Storage
- Shower Facilities
- Energy Performance Rating - B
- Lots of natural light
- Modern interior
- Fully fitted
Matterport 3D Tours
1 of 2
Videos
Matterport 3D Exterior
Matterport 3D Tours
Photos
Street View
Street
Map
Property Overview
3 Assembly Square in Cardiff Bay offers a prestigious office environment featuring a full-height glazed atrium and spectacular views over Roath Basin and Cardiff Bay. Designed to an exceptional standard, the building provides suites ranging from 4,405 to 9,154 square feet with a BREEAM rating of “Excellent.” This high-quality building is already home to ITV Wales, Life Science Hub, KPMG, Acuity Legal, and Gambit Corporate Finance. The building is equipped with chilled-beam air conditioning, raised access floors with a busbar system, and services for kitchen fit-out, ensuring flexibility and comfort. A concierge reception enhances the professional experience, while shower facilities, cycle parking, and a dedicated drying room support sustainable commuting options. Security and accessibility have been prioritized with 24-hour access, disabled facilities, and advanced safety measures throughout the premises. Occupiers benefit from generous on-site secure parking plus access to the nearby 1,238-space Pierhead Street multi-storey car park, ensuring convenience for staff and visitors alike. Transit users can walk to Cardiff Bay, which is served by Queen Street Station, linking to the Valley Line services and to Cardiff Central for Main Line services. Located just two minutes’ walk from Mermaid Quay, the property provides outstanding connectivity to the surrounding retail and dining amenities. These comprehensive amenities make 3 Assembly Square an ideal choice for businesses seeking modern, fully serviced office accommodation in a dynamic waterfront location.
- Atrium
- Kitchen
- Energy Performance Rating - B
- Reception
- Central Heating
- Common Parts WC Facilities
- Natural Light
- Reception
- Wi-Fi
- Air Conditioning
- Raised Floor System
- Shower Facilities
Property Facts
Building Type
Office
Year Built
2009
Building Height
6 Stories
Building Size
66,216 SF
Building Class
B
Typical Floor Size
12,772 SF
Parking
70 Surface Parking Spaces
70 Covered Parking Spaces
Select Tenants
- Acuity Law
- Commercial law firm providing business-focused legal services across multiple sectors.
- Gambit Corporate Finance
- Corporate finance advisory firm supporting mid-market transactions and strategic deals.
- ITV
- UK broadcaster producing television content and operating media and digital platforms.
- KPMG LLP
- Provider of professional services in audit, tax, legal, and advisory.
- Life Sciences Hub Wales
- Supports health and life sciences innovation across industry, academia, and care sectors.
Marketing Brochure
Nearby Amenities
Restaurants |
|||
|---|---|---|---|
| Bella Italia | - | - | 6 min walk |
| Five Guys | - | - | 6 min walk |
| Giovanni's In The Bay | Italian | - | 7 min walk |
| Cosy Club | - | - | 7 min walk |
| Hubbox | - | - | 7 min walk |
| Giggling Squid | - | - | 7 min walk |
| Wagamama Cardiff Mermaid Quay | - | - | 7 min walk |
| Côte Brasserie | - | - | 7 min walk |
| Zizzi | - | - | 7 min walk |
| Harry Ramsden's | - | - | 8 min walk |
Retail |
||
|---|---|---|
| Well Pharmacy | Drug Store | 6 min walk |
| Co-op | Supermarket | 6 min walk |
| Fitness Quarter | Fitness | 6 min walk |
| Odeon | Cinema | 6 min walk |
| Sainsbury's | Supermarket | 8 min walk |
Hotels |
|
|---|---|
| voco |
142 rooms
4 min drive
|
| Novotel |
138 rooms
4 min drive
|
| Clayton |
216 rooms
6 min drive
|
| Sunday |
172 rooms
6 min drive
|
| Leonardo Hotel |
142 rooms
7 min drive
|
| Park Plaza |
129 rooms
7 min drive
|
| Marriott |
205 rooms
6 min drive
|
Leasing Teams
Leasing Teams
Mark Sutton,
Partner-Office Agency
Mark is a Partner in the Cardiff Office Agency and Tenant Representation Team. Having joined Knight Frank in 2010, Mark has extensive commercial property experience in the South Wales property market acting for tenants, developers and landlords across the region. Specialising in the Cardiff office market, his clients include a range of occupiers, SME’s, private landlords, developers, property companies and pension funds.
Ben Bolton,
Director - Office & Industrial Agency
Ben has been with Cooke & Arkwright since 1999. He became responsible for Office Agency in 2001 and has been involved in many of the major transactions in South Wales, and Cardiff in particular. He has advised a number of companies including Helical Bar, CIS Insurance, Threadneedle Investments, Morley, Associated British Ports and Zurich, to name but a few. Ben was educated in the University of Glamorgan where he graduated with honours in 2001.
Mark Siddons, Associate Director
Mark Siddons is an Associate Director with the Business Space department, and is responsible for helping occupiers, landlords and investors acquire and dispose of office and warehouse and logistics accommodation across South Wales.
He provides a personal, director-led service no matter how big or small the client.
Mark specialises in advising a diverse range of clients on their property acquisition strategies, including Active Quote, Incopro, The RSPB, Darnton B3 Architects and Tenovus Cancer Care.
He provides a personal, director-led service no matter how big or small the client.
Mark specialises in advising a diverse range of clients on their property acquisition strategies, including Active Quote, Incopro, The RSPB, Darnton B3 Architects and Tenovus Cancer Care.
Chris Spiteri,
Director
Chris focuses on a number of areas for the group which includes sourcing new business, working on site viabilities, working on finance options, liaising with investors and working closely with the construction team. Prior to any development, Chris also works with the property team to set out the strategy to achieve sales/rentals.
About the Owner
Read More
Other Properties in the KARLIN REAL ESTATE Portfolio
Contacts
-
Mark
Sutton
-
Ben
Bolton
-
Mark
Siddons
-
Chris
Spiteri
-
Chris
Burroughs
-
Knight Frank LLP
1 of 12
Videos
Matterport 3D Exterior
Matterport 3D Tour
Photos
Street View
Street
Map
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3 Assembly Square, Britannia Quay, Cardiff | 3 Britannia Quay
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