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SBS is a London-based consultant civil and structural engineering firm based in South East of England. We offer professions services to clients in the residential and commercial sector working closely with architects, contractors, project managers and developers alike.


Reviews (4)

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27 July 2019

Thank you for your service.

SBS conducted a same-day site visit for my double-storey side extension and loft conversion.

They provided architectural, structural and building regulation drawings. SBS also liaised with my building control officer to ensure that I get the final certificate.

I would highly recommend SBS structures and would love to work with them again.



Aulad Miah

25 May 2019

Thank you so much for your assistance in this development, it was very helpful in laying the foundation and designing the roof.

Your service is outstanding, exceptional attention to detail with amazing customer service, 5 out of 5.

I will most certainly work with you in my future projects and will recommend you without hesitation to my associates.

Once again, thank you so much for all your support.



24 May 2019

I contacted SBS about a chimney breast in my Dorset property.

They conducted a free site visit to sit down and go through their plans with me and provided constant consultation throughout the process.

Highly recommended!

That is very kind of you Brian. Your kind feedback is very much appreciated!


Abdul Ahmad

19 May 2019

SBS provided alterations to my loft in Barking. They were professional, conducted regular site visits and provided regular consultation throughout the process.


Thank you for your positive feedback. Look forward to working with you in the future.

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Before converting the garage into a habitable space you need to know the following legal issues involved
1) You need to check your property deeds for any restrictive covenants i.e. some developers will place a restriction on building work that might affect the appearance of the house. If this is the case, you can contact them to find a way around it for a fee.
2) Garage conversion falls under permitted development hence you only need to apply for planning permission to convert the garage when you intend to extend the size of the actual garage.
3) You will need to comply with government building regulations as a building control officer may check your conversion number of times during construction.

Stage 1: Design and Space Planning
Stage 2: Planning Permission ( If extending existing size otherwise permitted development)
Stage 3: Building Regulations
stage 4: Insulation and Damp proofing
Stage 5: Plumbing and Wiring
Stage 6: flooring
Stage 7: Walls
Stage 8: Windows and doors
Stage 9: Completion Certificate

1)Roof Structure: Is it a trussed roof, purlin roof, or a rafter roof?

2)Height: Is your roof tall enough? Remember that the minimum height for a traditional roof is 2.2-2.4m and the height requirement for a modern trussed roof is between 2.4 and 2.6m.

3)Space: Is there adequate space to make the room ‘liveable’?

4)Services or Chimneys: Make sure there are none present and if there are, that they don’t have to be moved.

5)Felt: Does your roof have felt under the tiles, and is it fully weather right? If you don’t have felt, you’ll be able to see the back of your roof tiles and the battens they’re fixed to. If you do have felt, then you’ll see black paper under the tiles and battens.

1. The roof space is inspected for suitability
2. An architect or surveyor will confirm suitability and create plans
3. The loft is cleared and prepped
4. Rewiring is assessed
5. New floor joists fitted
6. Floors are insulated
7. Floorboards laid
8. Rafters reinforced
9. Dormers installed (if applicable)
10. Rooflights installed
11. Staircase fitted
12. Dormers tiled and vents fitted
13. Windows fitted in dormers
14. The roof is insulated
15. Partition walls erected
16. Wall plates and first fix
17. Electrics upgraded
18. Access panels for water, electric, and eaves storage
19. Walls are plasterboarded and architrave/skirting fitted
20. Bathrooms clad and extraction fitted
21. Second fix, heating, and finishes
22. Decorating

Currently, we don't undertake any interior design process.

Currently, we don't undertake any interior design process.

We recently created a website but have been in business since 2010.

Employers Liability Insurance
Public Liability cover
Profession Specific Cover

There are many aspects of my job that I love. I have listed some below.

1/ The ability to work with clients, contractors, subcontractors to devise a solution to a problem.
2/ The ability to make a difference to someone's life by making their dreams/ambitions a reality.
3/ The work/life balance.
4/ Daily facing new challenges and overcoming them.

We specialise in providing high-quality design services in all areas of structural engineering. From home (rear) extensions, loft conversions and new builds to internal alterations and structural inspections (surveys). Our design calculations and drawings are suitable for submission to Local Authority (or Private) Building Control (Building Regulation), with all proposals drafted and detailed to industry standards.

Our aim as a team is to ensure all our projects are completed on or before the scheduled dates agreed upon, whilst trying to go beyond the client’s expectations.

To ensure this happens we have a number of engineers who are high skills at what they do as well as having an exceedingly supportive management team who keep the office running smoothly and always available to answer any question.


SBS Structural design team specializes in providing high-quality design services in all areas of structural engineering. From home(rear) extensions, loft conversions and internal alterations to new builds. Our design calculations and drawings are suitable for submissions to local authority (or Private) building control (Building Regulations), with all proposals drafted and detailed industry standards.

SBS Architectural can offer you a range of integrated and thoughtful architecture, resulting in a building whose simplicity, efficiency, purpose, and beauty fully realize our clients' ambitions. SBS will accommodate your needs and provide you with the best service.

SBS Planning offers complete planning permission and building control application service where you will be able to acquire planning permission smoothly with the least amount of hassle. The planning permission package will include design advice, Professional CAD drawings, structural calculations, Preparation and submission of your planning and building control application and Liaison with your local planning office. We offer planning permission services for the following: Porch Single story extension Double story extension Loft Conversions Basements Internal Alterations Rear Extensions Garage conversion and many more. We will tailor all aspect of your planning permission to best suit your needs.