- Companies
- Finishing trades
- Luton
- SDL (Sundon) Limited
SDL (Sundon) Limited
- Company number
- 09041175
- Incorporated
- 15 May 201412 years trading
- Registered office
- 25 Park Street West, Luton, LU1 3BE
- Nature of business
- Other building completion and finishing
SDL (Sundon) Limited is a 12-year-old private limited company registered in Luton, company number 09041175, one of 193 building finishing companies in Luton. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Where SDL (Sundon) Limited is registered
The registered office is in Luton (LU1), in the Luton local authority area, East of England. Show LU1 3BE on a map.
Other trade companies in LU1
- Metalia Plastering LtdPlasterers
- Luton Bodyworks LtdMechanics and garages
- Speedyone LtdGroundworks and demolition
- Varion Construction LtdProperty developers
- Bromhams LtdMotor traders
- Vertex Home Improvements LtdRoofers
- Skillede LtdElectricians
- Avram Cleaning LtdCleaning companies
Also registered at this address
19 other companies use the same registered office as SDL (Sundon) Limited.
- Asj Electrical LimitedElectricians
- Beila Homes LtdBuilders
- Chiltern Doors & Windows LimitedProperty developers
- Crompton Joinery LimitedJoiners and carpenters
- Fabron Hydraulics LimitedSpecialist contractors
- Fehr Brothers LimitedMotor traders
- Floorscreed LimitedFloor and wall tilers
- J & C Flanagan Construction LtdBuilders
- J & P Properties (UK) LimitedProperty developers
- Kelly's Construction (Luton) LtdFinishing trades
- Luton MOT & Servicing Centre LtdMechanics and garages
- P D Plastering LimitedPlasterers
- Pisko's Kitchens & Bedrooms LimitedJoiners and carpenters
- S & J Electrical LimitedElectricians
- SDL Drylining LimitedFinishing trades
- Stanford Plastering LimitedPlasterers
- The Window Fitters & Fixers LtdProperty developers
- Todhunter Property LimitedFinishing trades
- Weststar Services LtdCivil engineering
What happens if SDL (Sundon) 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 09041175
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 May 2014 (12 years ago)
- Registered office
- 25 Park Street West, Luton, LU1 3BE
- Nature of business
- Other building completion and finishing (SIC 43390)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 23 July 2026
- Charges (mortgages)
- 1 outstanding of 1 registered
Filing notes for building finishing companies
Finishing trade companies cover a wide range of work. Most are micro-entities with simple accounts and a straightforward CT600.
Similar companies in Luton
Other active building finishing companies registered in Luton.
- SDL Drylining Limited2020
- Shuel Construction Limited2018
- Simion P Construct Ltd2017
- SND Maintenance Ltd2026
- Solidspan Projects Ltd2026
- Spotless Home Team Services Ltd2026
- Stonecross Paving Ltd2014
- Stoneforce Paving Ltd2015
All building finishing companies in Luton · All trades in Luton · Finishing trades across the UK
Frequently asked questions
When are SDL (Sundon) Limited's accounts due?
SDL (Sundon) Limited's next accounts are due at Companies House by 28 February 2027 (in 138 days), covering the period to 31 May 2026.
When is SDL (Sundon) Limited's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is SDL (Sundon) Limited still trading?
SDL (Sundon) 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 SDL (Sundon) Limited do?
SDL (Sundon) Limited is registered under Other building completion and finishing (SIC 43390).
How old is SDL (Sundon) Limited?
SDL (Sundon) Limited was incorporated on 15 May 2014, 12 years ago.
What is the penalty if SDL (Sundon) 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 SDL (Sundon) 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.