Property Summary
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Area Sq ft: 47 sq ft - 12,148 sq ft
Property Description
100 Borough High Street - Refurbished Office Space, London Bridge, Southbank East, London SE1 1LB100 Borough High Street, also known as Alpha House, is a refurbished office building located in the heart of London Bridge within the Southbank East commercial district. The property provides approximately 23,198 sq ft of modern office accommodation arranged over six floors, with flexible suites available from 47 sq ft up to 12,148 sq ft.
Currently undergoing a comprehensive renovation programme, Alpha House is scheduled for completion in 2026, delivering upgraded workspace accommodation with enhanced occupier facilities. Positioned on the corner of Borough High Street and Union Street, the building offers an attractive opportunity for businesses seeking high-quality Central London office space close to major transport connections.
Location
Alpha House is prominently located at 100 Borough High Street, London SE1 1LB, within the London Bridge area of Southbank East.
The property benefits from immediate access to Borough High Street and is surrounded by a vibrant mix of offices, retail, hospitality venues and cultural attractions. London Bridge, Borough and Southwark Underground Stations are all within easy walking distance, providing excellent connectivity across Central London and beyond.
Property Details
Address: 100 Borough High Street, London SE1 1LB
Property Name: Alpha House
Property Type: Office
Location Type: Central Business District (CBD)
Submarket: Southbank East
Submarket Cluster: London Southbank
Market: London
Total NIA: 23,198 sq ft
Available Accommodation: 47 sq ft - 12,148 sq ft
Maximum Contiguous Space: 12,148 sq ft
Floors: 6
Typical Floor Size: 3,314 sq ft
Year Built: 1971
Renovation Completion: October 2026
Construction: Reinforced Concrete
Building Grade: 3 Star Office
Tenancy: Multi-let
Owner Occupation: No
Lifts: 1
Parking: 7 surface spaces
Parking Ratio: 0.30 spaces per 1,000 sq ft
Rent
Estimated Office Rent: £60 - £74 per sq ft FRI
Lease Type: FRI / Negotiable
Available Office Space: 12,148 sq ft
Number of Available Spaces: 7
Renovation Programme
Alpha House is undergoing a full renovation programme designed to enhance the building’s specification and occupier appeal.
Renovation Period: November 2025 - October 2026
Renovation Cost: £7,530,000
Investment per NIA: £324.60 per sq ft
Amenities & Features
24-hour access
Controlled access system
Air conditioning
Security system
Accent lighting
Roof terrace
Lift access
Modernised office accommodation
Flexible suite sizes
Surface parking availability
Leasing Highlights
Newly refurbished office accommodation in one of London’s most connected business locations
Flexible workspace options from small suites through to larger contiguous floors
Prime corner position at Borough High Street and Union Street
Strong transport links to London Bridge, Borough and Southwark stations
Attractive choice for professional occupiers seeking premium Southbank office space
Close proximity to Borough Market, Bankside and the wider London Bridge business district
Renovation programme enhancing the building’s specification and workplace environment
Connectivity & Transport
London Bridge Station is approximately 0.2 miles away, providing Jubilee Line, Northern Line and National Rail services. Borough Underground Station is also around 0.2 miles away, offering Northern Line connections.
For further details or to make a booking, please contact Fraser Bond.
