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Building Extensions

Extending a property is a great way to gain extra space without having to sell up and is a sure-fire way to add value to your home. Each stage of the process needs to be carefully planned, from initial designs to planning applications, supplies and labour costs.

Building Regulations for Extensions

When extending a building it is important to ensure that the work complies with the Government's Building Regulations. If the proposed extension is a porch, conservatory or detached garage built at ground level, taking up less than 30m2 of floor space, it is probable that Building Regulations will not be relevant.

Planning Permission for Extensions

If planning permission is needed then plans must be submitted to the council who will put them on the Planning Register for public viewing. Neighbours will be notified. A committee will either make a decision about the plans, or appoint a senior planning officer to make the decision. This process can take up to eight weeks.

Planning permission will be needed if the proposed extension:

  • will exceed the height of the highest part of the existing roof
  • will exceeds 4m in height
  • will be more than 50% wider than the original house
  • is increased by more than 50 cubic metres or 10% of the existing property
  • alters the roof, chimney, flue, soil or vent pipe of the original house
  • has a veranda, balcony or raised platform

To read more about building regulations and planning permission - visit the planning Portal

Estimating the Building Costs

We would be happy to meet with you to discuss your ideas for your home and give advice and estimated costings at a pre-architect stage. This will give you a realistic idea of projected costings for your project, before employing an architect and applying for planning permission.

Building Projects

  • Extensions to bungalows and houses
  • Ground floor extensions
  • Attic conversions and extensions
  • Extension to create disability access with level flooring
  • Building Extensions on listed buildings
Building extensions

Photo Gallery showing some of our building work - Please click on the images for larger picture & slide show.

Simon Bailey Building Contractor Swindon, Wiltshire
Simon Bailey Building Contractor Swindon, Wiltshire
Simon Bailey Building Contractor Swindon, Wiltshire
Simon Bailey Building Contractor Swindon, Wiltshire
Simon Bailey Building Contractor Swindon, Wiltshire
Simon Bailey Building Contractor Swindon, Wiltshire