Sir Ath Limited company overview
Sir Ath Limited is a private limited company registered with company number 06127445. It was incorporated on 26 Feb 2007 and its current status is active.
The registered office is at One, Curzon Street, London, W1J 5HB. The company has 5 active officers. It was previously called P1 Ath Limited and 2 other names.
Sir Ath Limited upcoming deadlines
Year end accounts
Due 31 Dec 2027
Confirmation statement
Due 3 Mar 2027
Corporation tax payment
Due 1 Jan 2028
Dates are the ones Companies House holds for this company. Late accounts trigger automatic Companies House penalties starting at £150, and HMRC charges interest on late corporation tax.
Sir Ath Limited at a glance
19 years
Trading age
7,201 days since incorporation
5
Active officers
Jadzia, Martin, Mark, Darren
138
Filings on record
Latest: 9 Sep 2026
100/100
Filing health score
Accounts and statement up to date
Directors of Sir Ath Limited
Former officers
10 more officers are on the register. See all on Companies House
Nature of business (SIC codes)
68209
Other letting and operating of own or leased real estate
Allowable expenses for Sir Ath Limited
Based on Sir Ath Limited's SIC code (68209), these are typical tax-deductible expenses for a property & letting company. Claiming them lowers the profit you pay corporation tax on.
Repairs & maintenance
Fixing like-for-like wear and tear (not improvements).
Letting agent fees
Management, tenant-finding and inventory costs.
Mortgage interest
Finance costs — a company claims these in full, unlike individuals.
Landlord insurance & certificates
Buildings cover, gas safety and EPC certificates.
Vehicle & mileage
45p a mile for the first 10,000 business miles in a personal car.
Staff & director salaries
Wages, employer NI and pension contributions paid through PAYE.
Accountancy & legal fees
Bookkeeping, year-end accounts, tax advice and company secretarial costs.
Business insurance
Public liability, professional indemnity and employer's liability cover.
Phone & internet
Business mobile contracts, broadband and a share of home internet.
General guidance only — every expense must be wholly and exclusively for business. Ask an accountant
Tax guide for businesses like Sir Ath Limited
How much tax does a property & letting company pay?
UK companies pay corporation tax at 19% on profits up to £50,000, rising to 25% above £250,000, with marginal relief in between. Claiming every allowable expense reduces taxable profit.
Does a company like Sir Ath Limited need to register for VAT?
VAT registration is compulsory once taxable turnover passes £90,000 in any rolling 12 months. Many businesses register voluntarily to reclaim VAT on costs.
How much does an accountant cost for a limited company in London?
Fixed-fee accountants typically charge £60–£200 a month for a small limited company, covering year-end accounts, corporation tax and the confirmation statement.
Can directors of Sir Ath Limited pay themselves in dividends?
Most small company directors take a low salary plus dividends. Dividends are paid from profits after corporation tax, with an annual £500 dividend allowance.
Filing history
9 Sep 2026 · AA
Audit exemption subsiduary accounts made up to 31 Mar 2026
9 Sep 2026 · PARENT_ACC
Legacy
9 Sep 2026 · GUARANTEE2
Legacy
9 Sep 2026 · AGREEMENT2
Legacy
25 Mar 2026 · TM01
Termination of appointment of Andrew Marc Jones as a director on 23 Mar 2026
25 Mar 2026 · TM01
Termination of appointment of Valentine Tristram Beresford as a director on 23 Mar 2026
25 Mar 2026 · AP01
Appointment of Mr Andrew David Smith as a director on 23 Mar 2026
25 Mar 2026 · AP01
Appointment of Mr Darren Windsor Richards as a director on 23 Mar 2026
23 Feb 2026 · CS01
Confirmation statement made on 17 Feb 2026 with no updates
5 Feb 2026 · RP01AP01
Replacement filing of director appointment with name
22 Oct 2025 · AA
Audit exemption subsiduary accounts made up to 31 Mar 2025
22 Oct 2025 · PARENT_ACC
Legacy
22 Oct 2025 · GUARANTEE2
Legacy
22 Oct 2025 · AGREEMENT2
Legacy
1 Mar 2025 · CS01
Confirmation statement made on 17 Feb 2025 with no updates
14 Oct 2024 · AA
Small accounts made up to 31 Mar 2024
21 May 2024 · PSC07
Cessation of a person with significant control
20 May 2024 · PSC02
Notification of a person with significant control
19 Apr 2024 · AA
Small accounts made up to 31 Mar 2023
3 Apr 2024 · MR04
Mortgage satisfy charge full
Showing the latest 20 of 138 filings. See the full history on Companies House
Accounting services for Sir Ath Limited
From tax to payroll, find accountants who look after every part of Sir Ath Limited’s finances.
Year-end accounts
Statutory accounts prepared and filed with Companies House on time, every year.
Corporation tax
CT600 returns filed with HMRC and tax planned so you only pay what you owe.
Payroll
Pay your team on time every month, with RTI submissions and pensions handled.
VAT & bookkeeping
Keep your books tidy and your VAT returns MTD-ready all year round.
Confirmation statement
Your annual confirmation statement checked and filed before the deadline.
Management accounts
Monthly or quarterly reports so you can see how the business is really doing.
More about Sir Ath Limited
About Sir Ath Limited
Sir Ath Limited is a UK private limited company based in London, registered at Companies House as company number 06127445 since 26 Feb 2007. Its listed activities include other letting and operating of own or leased real estate. This page brings together its public record — directors, registered office, nature of business and filing history — in one easy place.
Sir Ath Limited filings and compliance
Every UK limited company must file annual accounts, a confirmation statement and a corporation tax return each year. Sir Ath Limited has 138 filings on record. Keeping on top of these deadlines avoids automatic penalties from Companies House and HMRC, which start at £150 for late accounts.
Looking for an accountant in London?
Businesses like Sir Ath Limited often use a local accountant for year-end accounts, corporation tax, VAT and payroll. Compare fixed-fee, regulated accountants near London and get free quotes in minutes.
This page shows public information from Companies House. Director of Sir Ath Limited?
Sir Ath Limited – frequently asked questions
What is the company number of Sir Ath Limited?
Sir Ath Limited is registered at Companies House under company number 06127445.
When was Sir Ath Limited incorporated?
Sir Ath Limited was incorporated on 26 Feb 2007 as a private limited company.
Who are the directors of Sir Ath Limited?
Current officers are Jadzia Zofia Duzniak (secretary), Martin Francis Mcgann (director), Mark Andrew Stirling (director), Darren Windsor Richards (director) and Andrew David Smith (director).
What does Sir Ath Limited do?
The company's registered nature of business (SIC) is 68209 – Other letting and operating of own or leased real estate.
Where is Sir Ath Limited registered?
The registered office address is One, Curzon Street, London, W1J 5HB.
Is Sir Ath Limited still trading?
According to its latest Companies House record the company status is active. Its most recent filing was audit exemption subsiduary accounts made up to 31 Mar 2026 on 9 Sep 2026.