Company profile · Builders
Attic Conversions Limited
Attic Conversions Limited is a 45-year-old private limited company registered in Guildford, company number 01528472, one of 121 building contractors in Guildford. Its next accounts are due at Companies House on 31 August 2027, and the CT600 for the period to 30 November 2026 is due at HMRC on 30 November 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 30 November 2025, as filed at Companies House.
Attic Conversions Limited 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 down £28K (-14.1%) on the year before, to £172K.
- Net assets rose in 6 of 8 year-on-year comparisons on record.
- Current assets of £373K against £408K owed within a year: 0.9 times cover.
- 8 employees on average, up from 7 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 |
|---|---|---|---|---|---|
| 30 Nov 2025 | £172K | £113K | £373K | £408K | 8 |
| 30 Nov 2024 | £200K | £193K | £391K | £294K | 7 |
| 30 Nov 2023 | £190K | £480K | £541K | £489K | 8 |
| 30 Nov 2022 | £157K | £432K | £527K | £516K | 8 |
| 30 Nov 2021 | £150K | £226K | £222K | 8 | |
| 30 Nov 2020 | £136K | £204K | £147K | 8 | |
| 30 Nov 2019 | £132K | £253K | £211K | 7 | |
| 30 Nov 2018 | £103K | £163K | £130K | ||
| 30 Nov 2017 | £111K | £176K | £103K | ||
| 30 Nov 2016 | £186K | £121K |
Where Attic Conversions Limited is registered
The registered office is in Guildford (GU1), in the Guildford local authority area, South East. Show GU1 2DG on a map.
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What happens if Attic Conversions 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 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Sep 2027 to 30 Sep 2027 | £150 |
| 1 to 3 months late | 1 Oct 2027 to 30 Nov 2027 | £375 |
| 3 to 6 months late | 1 Dec 2027 to 29 Feb 2028 | £750 |
| More than 6 months late | From 1 Mar 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2027 | £200 |
| 3 months late | 29 Feb 2028 | another £200 |
| 6 months late | 30 May 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 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
- 01528472
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 November 1980 (45 years ago)
- Registered office
- Netherlea 5 the Ridgeway, Guildford, Surrey, GU1 2DG
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 30 November (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 November 2025
- Last confirmation statement
- 22 January 2026
- Charges (mortgages)
- 2 outstanding of 2 registered
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 Guildford
Other active building contractors registered in Guildford.
- Attic Design and Build Ltd2021
- B Wel Limited2014
- Beaulieu Homes Southern Limited2011
- Bedfield Renovations Ltd2014
- Bell & Collier Construction Ltd2022
- Benchmark Carpentry Services Limited2015
- Boving Engineering UK Limited2000
- Brique Ltd2021
All building contractors in Guildford · All trades in Guildford · Builders across the UK
Frequently asked questions
When are Attic Conversions Limited's accounts due?
Attic Conversions Limited's next accounts are due at Companies House by 31 August 2027 (in 323 days), covering the period to 30 November 2026.
When is Attic Conversions Limited's CT600 due?
The CT600 for the period to 30 November 2026 is due at HMRC by 30 November 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 September 2027.
Is Attic Conversions Limited still trading?
Attic Conversions 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 Attic Conversions Limited do?
Attic Conversions Limited is registered under Construction of domestic buildings (SIC 41202).
How old is Attic Conversions Limited?
Attic Conversions Limited was incorporated on 17 November 1980, 45 years ago.
What is the penalty if Attic Conversions 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 Attic Conversions Limited on Companies House for filed documents, officers and the full history.
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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.