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20 Air Street

20, AIR STREET, LONDON, W1B 5AN

20 Air Street is an office building in London W1B 5AN. It has 6 business-rates assessments with a total rateable value of £9,360,000, across about 12,066 m² of rated floor space. The leasehold title is registered to Paul, Weiss, Rifkind, Wharton & Garrison LLP. Its energy performance rating is C. 5 planning applications are linked to it.

Building summary

Address20, AIR STREET, LONDON, W1B 5AN
Main useOffices and premises
Total rateable value£9,360,000
Rateable assessments6
Rated floor area12,066 m² (129,877 sq ft)
Energy rating (EPC)C; 2 current certificates; newest valid until 11 Jun 2035
Registered ownerPaul, Weiss, Rifkind, Wharton & Garrison LLP
Linked planning applications5

Registered owners

OwnerCompany no.GroupTenureTitle no.
Paul, Weiss, Rifkind, Wharton & Garrison LLP overseas——LeaseholdNGL940677
Paul, Weiss, Rifkind, Wharton & Garrison LLP overseas——LeaseholdBB12904
Paul, Weiss, Rifkind, Wharton & Garrison LLP overseas——LeaseholdBB12903
Paul, Weiss, Rifkind, Wharton & Garrison LLP overseas——LeaseholdBB30913
Paul, Weiss, Rifkind, Wharton & Garrison LLP overseas——LeaseholdBB30912
Paul, Weiss, Rifkind, Wharton & Garrison LLP overseas——LeaseholdBB30914
Twitter UK Ltd Operating business07653064—LeaseholdBB31159
Bregal Investments London Limited04345764—LeaseholdBB30231
Twitter UK Limited Operating business07653064—LeaseholdNGL939950
The Crown Estate Commissioners Public sector——LeaseholdNGL939730
Ascential 4c Group Limited07880716Informa PLCLeaseholdNGL927650
Telefonica Digital Limited utility07884976Telefonica S ALeaseholdNGL924718

Matched from HM Land Registry ownership data (CCOD/OCOD) to this building by address. Groups are from the Companies House register of people with significant control. Matching is automatic and can be wrong — check the title with HM Land Registry before relying on it.

Previous owners

OwnerFromToPrice paid
Twitter UK Ltd6 Jul 20212 Jan 2026—
Twitter UK Limited6 Jul 20212 Jan 2026—
Twitter UK Limited20 Feb 20142 Jan 2026—

Companies previously registered as owner of this building's titles since late 2017, from HM Land Registry's monthly ownership changes. Owners who were private individuals aren't published.

Common questions

Who owns 20 Air Street?

20 Air Street is registered to Paul, Weiss, Rifkind, Wharton & Garrison LLP at HM Land Registry. 12 registered titles are linked to the building in total.

What are the business rates for 20 Air Street?

20 Air Street has a total rateable value of £9,360,000 across 6 assessments on the Valuation Office Agency's rating list. Business rates bills are worked out from the rateable value, less any reliefs the ratepayer is entitled to.

What is the EPC rating of 20 Air Street?

The current energy performance certificates for 20 Air Street are rated C, with the newest valid until 11 Jun 2035.

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