- SRA number
- 566039
- Authorisation
- Licensed body (ABS)
- Authorised since
- 29 May 2020
- Organisation type
- Licensed body (alternative business structure), authorised
- Constitution
- Incorporated company (limited by shares)
- Practising offices
- 1
- Head office
- London EC3N 1BJ
- Areas of law reported to the SRA
- 2: Criminal, Litigation
- Website (SRA record)
- criminalsolicitor.co.uk
- Head office phone
- 020 7481 9157
- Companies House status
- Active (07879842, file 1 May 2026)
- Incorporated
- 13 December 2011
- Company type
- Private Limited Company
- SRA firms in City of London
- 754 (178 residential property)
Sonn Macmillan Walker Limited is a licensed body authorised by the Solicitors Regulation Authority since May 2020 and recorded under SRA number 566039. The SRA record lists 1 practising office: the head office at 2-5 Minories, London, EC3N 1BJ. Its constitution is recorded as incorporated company (limited by shares).
In its most recent annual return the firm told the SRA it delivered work in 2 areas of law: Criminal and Litigation. Residential property is not among the reported areas, so the firm does not appear in the conveyancing lists on this site's town and city pages.
The head office postcode EC3N 1BJ falls within City of London (London), where the SRA register lists 754 authorised firms with a practising office, 178 of them reporting residential property work. The nearest other SRA-regulated firms by straight-line distance from the head office are Waterstone Chambers LLP (same postcode, London), Hughes and Dorman (same postcode, London), Irvine Thanvi Natas (same postcode, London), Aina Khan Law Limited (100 m, London) and Privity Legal Ltd (100 m, London). 1 of those 5 reports residential property work.
Companies House records the firm as SONN MACMILLAN WALKER LIMITED (company number 07879842), a private limited company incorporated on 13 December 2011, 14 years before this snapshot. Its status on the Companies House bulk file dated 1 May 2026 is "Active". The registered office town is LONDON, the same as the head office.
Offices on the SRA record
| Office | Address | District | Phone |
|---|---|---|---|
| Head office | 2-5 Minories, London, EC3N 1BJ | City of London | 020 7481 9157 |
Areas of law reported to the SRA
Self-reported by the firm in its most recent annual return to the SRA ("the areas of law that the law firm has told us they delivered"). A lagging description of past work, not a live service list, a specialism claim or a quality mark; it may be up to a year old and is blank for newly authorised firms.
Companies House record
SONN MACMILLAN WALKER LIMITED, company number 07879842, private limited company, incorporated 13 December 2011. Status on the Companies House bulk file dated 1 May 2026: Active. Last accounts made up to 31 March 2025 (total exemption full). Registered office town: LONDON. Full record on ukcompanyfinder.com.
Nearest SRA-regulated firms
- Waterstone Chambers LLP · London · residential propertysame postcode
- Hughes and Dorman · Londonsame postcode
- Irvine Thanvi Natas · Londonsame postcode
- Aina Khan Law Limited · London100 m
- Privity Legal Ltd · London100 m
solicitorcost.com includes data supplied by the Solicitors Regulation Authority.
Source: SRA Firm data web service (terms 1 July 2020, attribution required); firm status, offices and areas of law as reported by the SRA on 28 August 2026. Areas of law are self-reported by each firm in its annual return and describe work it told the SRA it delivered, not a live service menu or a quality mark. Companies House fields from the Basic Company Data bulk file dated 1 May 2026. Geocoding by postcodes.io: contains OS data (c) Crown copyright and database right 2026, Royal Mail data (c) Royal Mail copyright and database right 2026, National Statistics data (c) Crown copyright and database right 2026. No firm on this site is sponsored, ranked or endorsed, and nothing here implies SRA endorsement of this site.