- Company number
- 04186880
- Incorporated
- 26 Mar 200125 years trading
- Registered office
- 4 Concorde Close, Weymouth, Dorset, DT4 9UA
- Nature of business
- Construction of domestic buildings
N.A. Caswell Building Limited is a 25-year-old private limited company registered in Weymouth, company number 04186880, one of 51 building contractors in Weymouth. Its next accounts are due at Companies House on 31 December 2027, and the CT600 for the period to 31 March 2027 is due at HMRC on 31 March 2028.
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 £28K (+25.6%) on the year before, to £138K.
- Net assets rose in 7 of 9 year-on-year comparisons on record.
- Current assets of £153K against £42K owed within a year: 3.6 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 10 years, 2017 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2026 | £138K | £153K | £42K | 1 | |
| 31 Mar 2025 | £110K | £102K | £27K | 1 | |
| 31 Mar 2024 | £77K | £152K | £115K | 1 | |
| 31 Mar 2023 | £103K | £167K | £70K | 1 | |
| 31 Mar 2022 | £98K | £162K | £71K | 1 | |
| 31 Mar 2021 | £82K | £156K | £33K | 1 | |
| 31 Mar 2020 | £34K | £86K | £24K | 1 | |
| 31 Mar 2019 | £39K | £62K | £17K | ||
| 31 Mar 2018 | £29K | £113K | £25K | ||
| 31 Mar 2017 | £3,375 | £70K | £17K |
Where N.A. Caswell Building Limited is registered
The registered office is in Weymouth (DT4), in the Dorset local authority area, South West. Show DT4 9UA on a map.
Other trade companies in DT4
- Pioneer Projects LimitedProperty developers
- TQ Drylining Solutions LtdPlasterers
- JR Property Care LtdCleaning companies
- DT Windows & Doors LtdGlaziers
- Bauen Build LimitedProperty developers
- Dorset Linen Services LimitedCleaning companies
- Regal Building Services (Dorset) LtdSpecialist contractors
- Ello Services LtdBuilders
What happens if N.A. Caswell Building 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 December 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2028 to 31 Jan 2028 | £150 |
| 1 to 3 months late | 1 Feb 2028 to 31 Mar 2028 | £375 |
| 3 to 6 months late | 1 Apr 2028 to 30 Jun 2028 | £750 |
| More than 6 months late | From 1 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 2029 | 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
- 04186880
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 26 March 2001 (25 years ago)
- Registered office
- 4 Concorde Close, Weymouth, Dorset, DT4 9UA
- 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 2026
- Last confirmation statement
- 23 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 Weymouth
Other active building contractors registered in Weymouth.
- Palmer Homes Limited1998
- Peech Building Services Limited2010
- Purnell Snell Building Limited2011
- Raddison Bespoke Garden Buildings Limited2022
- Redmore Roofing Ltd2021
- Richards and Puszkarz (Developments) Limited1987
- Roofline Access Limited2005
- Shield Energy Ltd2026
All building contractors in Weymouth · All trades in Weymouth · Builders across the UK
Frequently asked questions
When are N.A. Caswell Building Limited's accounts due?
N.A. Caswell Building Limited's next accounts are due at Companies House by 31 December 2027 (in 444 days), covering the period to 31 March 2027.
When is N.A. Caswell Building Limited's CT600 due?
The CT600 for the period to 31 March 2027 is due at HMRC by 31 March 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2028.
Is N.A. Caswell Building Limited still trading?
N.A. Caswell Building 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 N.A. Caswell Building Limited do?
N.A. Caswell Building Limited is registered under Construction of domestic buildings (SIC 41202).
How old is N.A. Caswell Building Limited?
N.A. Caswell Building Limited was incorporated on 26 March 2001, 25 years ago.
What is the penalty if N.A. Caswell Building 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 N.A. Caswell Building 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.