Company profile · Builders
Extendopedia Ltd
Extendopedia Ltd is a 1-year-old private limited company registered in Harrow, company number 16474636, one of 793 building contractors in Harrow. Its next accounts are due at Companies House on 27 February 2027, and its first CT600 is due at HMRC on 26 May 2027.
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 Extendopedia Ltd is registered
The registered office is in Harrow (HA3), in the Harrow local authority area, London. Show HA3 8NS on a map.
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What happens if Extendopedia 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 27 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 28 Feb 2027 to 27 Mar 2027 | £150 |
| 1 to 3 months late | 28 Mar 2027 to 27 May 2027 | £375 |
| 3 to 6 months late | 28 May 2027 to 27 Aug 2027 | £750 |
| More than 6 months late | From 28 Aug 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 2028 | 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
- 16474636
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 27 May 2025 (1 year ago)
- Registered office
- 159 Christchurch Avenue, Harrow, HA3 8NS
- Nature of business
- Construction of commercial buildings (SIC 41201)
Other construction installation (SIC 43290)
Other retail sale not in stores, stalls or markets (SIC 47990)
Architectural activities (SIC 71111) - Year end
- 31 May (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 26 May 2026
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in Harrow
Other active building contractors registered in Harrow.
- Facciavista Brickwork Ltd2021
- Fane Drylining Ltd2022
- Farafix Ltd2025
- Ffusa Construction Limited2020
- Fill Group Ltd2021
- Fine Home Building Ltd2012
- Fitzroy Crossing Limited2013
- Fix IT Properties Ltd2025
All building contractors in Harrow · All trades in Harrow · Builders across the UK
Frequently asked questions
When are Extendopedia Ltd's accounts due?
Extendopedia Ltd's next accounts are due at Companies House by 27 February 2027 (in 138 days), covering the period to 31 May 2026.
When is Extendopedia 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 26 May 2026, due by 26 May 2027, and one for the period to 31 May 2026, due by 31 May 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Extendopedia Ltd still trading?
Extendopedia 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 Extendopedia Ltd do?
Extendopedia Ltd is registered under Construction of commercial buildings (SIC 41201); Other construction installation (SIC 43290); Other retail sale not in stores, stalls or markets (SIC 47990); Architectural activities (SIC 71111).
How old is Extendopedia Ltd?
Extendopedia Ltd was incorporated on 27 May 2025, 1 year ago.
What is the penalty if Extendopedia 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 Extendopedia Ltd on Companies House for filed documents, officers and the full history.
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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.