- Companies
- Civil engineering
- Harrow
- Add22 Ltd
Add22 Ltd
- Company number
- 17477876
- Incorporated
- 23 Sep 2026
- Registered office
- 87 Grasmere Gardens, Harrow, HA3 7PS
- Nature of business
- Construction of railways and underground railways
Add22 Ltd is a newly incorporated private limited company registered in Harrow, company number 17477876, one of 121 civil engineering contractors in Harrow. Its next accounts are due at Companies House on 23 June 2028, and its first CT600 is due at HMRC on 22 September 2028.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where Add22 Ltd is registered
The registered office is in Harrow (HA3), in the Harrow local authority area, London. Show HA3 7PS on a map.
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Also registered at this address
2 other companies use the same registered office as Add22 Ltd.
- Asr234 LimitedCivil engineering
- Vio&Windows LtdFinishing trades
What happens if Add22 Ltd files late
Companies House charges an automatic penalty the day after the deadline, and it rises the longer the accounts are late. These are the dates for this company's accounts due on 23 June 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 24 Jun 2028 to 23 Jul 2028 | £150 |
| 1 to 3 months late | 24 Jul 2028 to 23 Sep 2028 | £375 |
| 3 to 6 months late | 24 Sep 2028 to 23 Dec 2028 | £750 |
| More than 6 months late | From 24 Dec 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2028 | £200 |
| 3 months late | 30 Dec 2028 | another £200 |
| 6 months late | 30 Mar 2029 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 2029 | another 10% of any unpaid tax |
For returns filed on or after 1 April 2026. Late three times in a row and the £200 penalties become £1,000 each.
Company details
As held on the Companies House register.
- Company number
- 17477876
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 September 2026
- Registered office
- 87 Grasmere Gardens, Harrow, HA3 7PS
- Nature of business
- Construction of railways and underground railways (SIC 42120)
- Year end
- 30 September (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for civil engineering contractors
Civil engineering contractors usually carry plant and machinery, so capital allowances (the annual investment allowance and the main pool) do much of the work in the corporation tax computation.
Similar companies in Harrow
Other active civil engineering contractors registered in Harrow.
- Aegean Diving Services Limited2011
- Airoreserve Limited1987
- Al Mechanical Services Ltd2021
- Alo Elites Ltd2026
- Amarc Construction Ltd1995
- Arch Struct Ltd2019
- Arona Projects Limited2026
- Ashcon Limited1994
All civil engineering contractors in Harrow · All trades in Harrow · Civil engineering across the UK
Frequently asked questions
When are Add22 Ltd's accounts due?
Add22 Ltd's next accounts are due at Companies House by 23 June 2028 (in 620 days), covering the period to 30 September 2027.
When is Add22 Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 22 September 2027, due by 22 September 2028, and one for the period to 30 September 2027, due by 30 September 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Add22 Ltd still trading?
Add22 Ltd is listed as active on the Companies House register as of 1 Oct 2026. Active means it has not been dissolved or entered insolvency; it does not show whether it is currently taking on work.
What does Add22 Ltd do?
Add22 Ltd is registered under Construction of railways and underground railways (SIC 42120).
How old is Add22 Ltd?
Add22 Ltd was incorporated on 23 September 2026, less than a year ago.
What is the penalty if Add22 Ltd files its accounts late?
Companies House charges £150 if the accounts are up to 1 month late, £375 up to 3 months, £750 up to 6 months and £1,500 after that, doubled if the previous year's accounts were also late. HMRC charges £200 for a CT600 filed a day late and another £200 at 3 months.
Official records
View Add22 Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026). Deadlines are worked out from the register and assume a standard accounting period; a change of year end or a short period moves them. This page is general information, not tax or accountancy advice.