- Company number
- 15545290
- Incorporated
- 7 Mar 20242 years trading
- Registered office
- 197 Main Road, Harwich, CO12 3PH
- Nature of business
- Construction of domestic buildings
Dualities & Developments Ltd is a 2-year-old private limited company registered in Harwich, company number 15545290, one of 14 building contractors in Harwich. 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.
Where Dualities & Developments Ltd is registered
The registered office is in Harwich (CO12), in the Tendring local authority area, East of England. Show CO12 3PH on a map.
Other trade companies in CO12
- Harwich Carpets & Flooring LtdFloor and wall tilers
- Good's Bespoke Interiors LtdBuilders
- PDLM Projects LtdProperty developers
- Weeley MOT and Service Centre LtdMechanics and garages
- Sky-Ri Construction LtdBuilders
- Kentrox LimitedCleaning companies
- HC Landscapes and Groundworks LtdLandscapers and gardeners
- Omega Energy Solutions LtdInstallers
Also registered at this address
6 other companies use the same registered office as Dualities & Developments Ltd.
- All Conditions Treecare LimitedLandscapers and gardeners
- Danlee Building Services LimitedFinishing trades
- KCN Land LimitedProperty developers
- Ken Stapleton and Son LtdProperty developers
- T & L Surveying LimitedCivil engineering
- Verde Ev Solutions & Electrical Contractors LtdMotor traders
What happens if Dualities & 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
- 15545290
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 7 March 2024 (2 years ago)
- Registered office
- 197 Main Road, Harwich, CO12 3PH
- 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
- 4 March 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 Harwich
Other active building contractors registered in Harwich.
- Eka Building Services Ltd2021
- Good's Bespoke Interiors Ltd2026
- GPR Garden & Property Renovations Limited2024
- H&B Civils Ltd2025
- H.S. & K.M. Nurkowski & Co Limited1987
- James French Renovations Limited2025
- SCD Services Ltd2022
- Sky-Ri Construction Ltd2026
All building contractors in Harwich · All trades in Harwich · Builders across the UK
Frequently asked questions
When are Dualities & Developments Ltd's accounts due?
Dualities & Developments Ltd's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is Dualities & 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 Dualities & Developments Ltd still trading?
Dualities & 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 Dualities & Developments Ltd do?
Dualities & Developments Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is Dualities & Developments Ltd?
Dualities & Developments Ltd was incorporated on 7 March 2024, 2 years ago.
What is the penalty if Dualities & 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 Dualities & 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.