Company profile · Builders
Open Book Construction and Developments Ltd
Open Book Construction and Developments Ltd is a 15-year-old private limited company registered in Winkleigh, company number 07761530, one of the UK's building contractors. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 31 March 2025, as filed at Companies House.
Open Book Construction and Developments Ltd over the years
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 £32K (+31%) on the year before, to £134K.
- Net assets rose in 8 of 9 year-on-year comparisons on record.
- Current assets of £169K against £48K owed within a year: 3.5 times cover.
- 20 employees on average, up from 3 the year before.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £134K | £169K | £48K | 20 | |
| 31 Mar 2024 | £103K | £108K | £23K | 3 | |
| 31 Mar 2023 | £63K | £101K | £43K | 2 | |
| 31 Mar 2022 | £46K | £92K | £50K | 2021 | |
| 31 Mar 2021 | £35K | £67K | £37K | 2 | |
| 31 Mar 2020 | £30K | £63K | £39K | 2019 | |
| 31 Mar 2019 | £3,556 | £38K | £40K | ||
| 31 Mar 2018 | -£17K | ||||
| 31 Mar 2017 | £3,883 | £31K | £37K | ||
| 31 Mar 2016 | £2,712 | £33K | £39K | £46K |
Where Open Book Construction and Developments Ltd is registered
The registered office is in Winkleigh (EX19), in the Torridge local authority area, South West. Show EX19 8JL on a map.
Other trade companies in EX19
- Taylorhall LtdPlumbers and heating engineers
- Higher Reeve Holdings LtdProperty developers
- Big Barn Group LtdElectricians
- Canopy Timber Buildings LtdFinishing trades
- PJ’S Electrics LtdElectricians
- Miswell Flooring & Resin LtdFloor and wall tilers
- J Parsons Building Services (Devon) LtdFinishing trades
- Halfpenny Yard LimitedMotor traders
What happens if Open Book Construction and Developments 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 31 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 07761530
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 5 September 2011 (15 years ago)
- Registered office
- Braeside, Exeter Road, Winkleigh, Devon, EX19 8JL
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 5 September 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
Other active building contractors.
- Broadheath Construction Limited2011
- Neon Developments Limited2011
- Carter Construction (Roofing and Cladding) Limited2011
- Boro Construction (Bromley) Ltd2011
- Brown and Ralph Limited2011
- Duncan Birch Ltd2011
- A1 Professional Builders Ltd2011
- TJG Enterprises Limited2011
Frequently asked questions
When are Open Book Construction and Developments Ltd's accounts due?
Open Book Construction and Developments Ltd's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is Open Book Construction and Developments Ltd's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Open Book Construction and Developments Ltd still trading?
Open Book Construction and Developments 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 Open Book Construction and Developments Ltd do?
Open Book Construction and Developments Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is Open Book Construction and Developments Ltd?
Open Book Construction and Developments Ltd was incorporated on 5 September 2011, 15 years ago.
What is the penalty if Open Book Construction and Developments 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 Open Book Construction and Developments 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.