- Companies
- Plumbers and heating engineers
- Aylesbury
- Optimum Construction & Interior Design Ltd
Optimum Construction & Interior Design Ltd
- Company number
- 08168348
- Incorporated
- 6 Aug 201214 years trading
- Registered office
- The Well House Burcott Lane, Bierton, Aylesbury, HP22 5AS
- Nature of business
- Plumbing, heat and air-conditioning installation; Other construction installation
Optimum Construction & Interior Design Ltd is a 14-year-old private limited company registered in Aylesbury, company number 08168348, one of 119 plumbing and heating companies in Aylesbury. 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 £2,723 (+192%) on the year before, to £4,141.
- Net assets rose in 7 of 9 year-on-year comparisons on record.
- Current assets of £6,680 against £1,461 owed within a year: 4.6 times cover.
- 1 employee on average during the year.
- 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 Aug 2025 | £4,141 | £6,680 | £1,461 | 1 | |
| 31 Aug 2024 | £1,418 | £6,649 | £266 | 1 | |
| 31 Aug 2023 | £473 | £9,505 | £425 | 1 | |
| 31 Aug 2022 | £426 | £13K | £159 | 1 | |
| 31 Aug 2021 | £222 | £17K | £1,871 | 1 | |
| 31 Aug 2020 | £3,075 | £32K | £3,897 | 1 | |
| 31 Aug 2019 | £1,459 | £4,077 | £2,618 | ||
| 31 Aug 2018 | £1,002 | £2,350 | £1,348 | ||
| 31 Aug 2017 | £1,449 | £2,913 | £1,464 | ||
| 31 Aug 2016 | £438 | £2,908 | £2,908 | £2,470 |
Where Optimum Construction & Interior Design Ltd is registered
The registered office is in Aylesbury (HP22), in the Buckinghamshire local authority area, South East. Show HP22 5AS on a map.
Other trade companies in HP22
- RZK Automotive & Recovery LtdMotor traders
- Ejp Facilities & Maintenance LimitedFacilities management
- Clearway Group Solutions LtdCleaning companies
- DM Select Motors LimitedMotor traders
- Ea 4Property LtdProperty developers
- Warner Made LtdProperty developers
- JTC Dev 1 LimitedProperty developers
- Custom Colour Coatings Group LtdMotor traders
What happens if Optimum Construction & Interior Design 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 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
- 08168348
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 6 August 2012 (14 years ago)
- Registered office
- The Well House Burcott Lane, Bierton, Aylesbury, HP22 5AS
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
Other construction installation (SIC 43290) - Year end
- 31 August (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 6 August 2026
Filing notes for plumbing and heating companies
Plumbing and heating companies frequently work under CIS for main contractors and also directly for homeowners, so turnover can mix CIS and non-CIS income.
Similar companies in Aylesbury
Other active plumbing and heating companies registered in Aylesbury.
- Osborn Heating & Plumbing Limited2022
- Otmoor Plumbing & Heating Limited2009
- Panda Heating Limited2015
- Peposhi Plumbing Services Limited2022
- Pipecraft Mechanical Ltd2025
- Plumbsafe Ltd2025
- Postcode Boiler Cover Limited2024
- Powersafe (South) Ltd2013
All plumbing and heating companies in Aylesbury · All trades in Aylesbury · Plumbers and heating engineers across the UK
Frequently asked questions
When are Optimum Construction & Interior Design Ltd's accounts due?
Optimum Construction & Interior Design Ltd's next accounts are due at Companies House by 31 May 2027 (in 230 days), covering the period to 31 August 2026.
When is Optimum Construction & Interior Design Ltd'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 Optimum Construction & Interior Design Ltd still trading?
Optimum Construction & Interior Design 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 Optimum Construction & Interior Design Ltd do?
Optimum Construction & Interior Design Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220); Other construction installation (SIC 43290).
How old is Optimum Construction & Interior Design Ltd?
Optimum Construction & Interior Design Ltd was incorporated on 6 August 2012, 14 years ago.
What is the penalty if Optimum Construction & Interior Design 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 Optimum Construction & Interior Design 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.