- Companies
- Specialist contractors
- Interlock Paving Limited
Interlock Paving Limited
- Company number
- 02334139
- Incorporated
- 11 Jan 198937 years trading
- Registered office
- 3 Whittle Close, Drayton Fields Ind Park, Daventry Northants, NN11 8RQ
- Nature of business
- Other specialised construction activities n.e.c.
Interlock Paving Limited is a 37-year-old private limited company registered in Daventry Northants, company number 02334139, one of the UK's specialist construction companies. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 is due at HMRC on 31 August 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets up £378K (+17.3%) on the year before, to £2.6M.
- Net assets rose in 5 of 6 year-on-year comparisons on record.
- Current assets of £3M against £563K owed within a year: 5.3 times cover.
- 3 employees on average, up from 2 the year before.
- Balance sheets on record for 8 years, 2015 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Aug 2025 | £2.6M | £178K | £3M | £563K | 3 |
| 31 Aug 2024 | £2.2M | £193K | £2.3M | £242K | 2 |
| 31 Aug 2023 | £1.8M | £100K | £2.2M | £505K | 5 |
| 28 Feb 2019 | £1.7M | £755K | £1M | £488K | 6 |
| 28 Feb 2018 | £1.1M | £422K | £926K | £625K | 6 |
| 28 Feb 2017 | £647K | £804K | £1.8M | £979K | 6 |
| 28 Feb 2016 | £3.7M | £512K | £4M | £776K | |
| 28 Feb 2015 | £2.7M | £1.3M | £2.8M | £678K |
Where Interlock Paving Limited is registered
The registered office is in Daventry Northants (NN11), in the West Northamptonshire local authority area, East Midlands. Show NN11 8RQ on a map.
Other trade companies in NN11
- Propertyk Consulting LtdBuilders
- Atmyd LtdBuilders
- DBL Gas & Oil LtdPlumbers and heating engineers
- Instant Fix Plumbing LtdPlumbers and heating engineers
- Myzlyf Group of Companies LtdBuilders
- Ljt's Cleaning & Companionship LtdCleaning companies
- Roadside Autocare Solutions LtdMechanics and garages
- Drivefix Mobile Mechanics LtdMechanics and garages
Also registered at this address
1 other company uses the same registered office as Interlock Paving Limited.
- Bondwolfe Holdings LimitedSpecialist contractors
What happens if Interlock Paving Limited 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 31 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 02334139
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 January 1989 (37 years ago)
- Registered office
- 3 Whittle Close, Drayton Fields Ind Park, Daventry Northants, NN11 8RQ
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 August (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 20 April 2026
- Charges (mortgages)
- 0 outstanding of 2 registered
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies
Other active specialist construction companies.
Frequently asked questions
When are Interlock Paving Limited's accounts due?
Interlock Paving Limited's next accounts are due at Companies House by 31 May 2027 (in 231 days), covering the period to 31 August 2026.
When is Interlock Paving Limited's CT600 due?
The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.
Is Interlock Paving Limited still trading?
Interlock Paving Limited 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 Interlock Paving Limited do?
Interlock Paving Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Interlock Paving Limited?
Interlock Paving Limited was incorporated on 11 January 1989, 37 years ago.
What is the penalty if Interlock Paving Limited 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 Interlock Paving Limited 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.