Basement conversion in Belgrave
The short answer
Cellar to habitable room
- Price from
- £30,000.00
- Time on site
- 6 to 12 weeks (for complete conversion)
What you get
You receive a fully converted, damp-proofed, and finished basement space ready for your chosen use, complete with necessary structural and aesthetic work.
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When do you need a Basement conversion?
Start planning if you need more room but do not want to move house.
- You want to add a bedroom or office.
- Your family is growing but you lack space.
- You share walls with neighbours and need a legal agreement.
- You plan to rent the space out to tenants.
- You want to increase your property value.
- The law requires safety checks for new living rooms.
What happens on the day
A structural expert will visit to see if your home can support the work.
- They check your ceiling height and foundations.
- They look for damp or water leaks.
- They map out where your drains are.
- They might dig a small hole to test soil.
- They check how the house weight is held up.
- Expect the visit to take two to four hours.
How to prepare
- Clear out any old storage or rubbish.
- Find your property deeds and floor plans.
- Tell your neighbours about your future plans.
- Check where your main water stopcock is.
- Ensure the surveyor can reach all ground rooms.
- List what you want to use the room for.
- Check if you live in a flood zone.
- Move any breakable items near the cellar hatch.
How to improve your result
- Install large light wells for natural sun.
- Choose a high quality waterproof membrane.
- Add a sump pump for extra flood safety.
- Pick light paint colours to boost brightness.
- Use smart lighting to mimic daylight.
- Install underfloor heating for a cosy feel.
Why it is useful day to day
A converted basement makes your home feel much larger and more modern.
- You get a quiet space away from noise.
- The extra insulation keeps the whole house warmer.
- It creates a dedicated area for hobbies or work.
- Modern pumps keep the area dry and fresh.
- It provides a private guest suite for visitors.
- You save money compared to moving to a bigger house.
Why we ask these questions
Your professional will explain the best way to keep the room dry and safe.
- They will discuss how to stop water leaks.
- They will explain how to add fire exits.
- They will help with neighbour wall agreements.
- They will check if your ceiling is high enough.
- They will guide you through local planning rules.
- They will help you choose a layout for light.
Frequently asked questions
Often needed alongside
Project manager
Run the build for you
Home extension
Single or double storey
Loft conversion
Dormer, hip-to-gable, Velux
Garage conversion
Turn garage into living space
Garden room or annexe
Studios, offices, outbuildings
Knock-through & steel beams
Remove walls safely
Brickwork & walls
Walls, repointing, repairs
Underpinning & foundations
Stabilise and strengthen