Costs
The first major decision you need to make when planning your side return extension is whether you will opt for a company which can project manage everything from start to finish, or whether you will take care of individual elements yourself. 
By choosing just one contractor to work with, the cost is going to be a lot more transparent (and often, perhaps surprisingly, lower). You will be provided with a quotation up front which breaks down each individual cost. This way, there are no nasty surprises as the project progresses.
If you choose to project manage yourself, or if you elect to manage just certain components on your own, here is a list of what you will need to account for, and approximate costs*:
Phase 1: planning and design
• Architect fees (£750 – £1500)
• Planning fees (cost depends on local council rates, average £75)
• Structural engineers (£800 – £1500)
Phase 2: building
• Construction costs (£35,000 – £40,000)
• Fit-out costs, including plumbing, electrics, doors and windows (£10,000 – £20,000)
• Building Control Inspector (£800 – £1250)
*Please note that the above estimates are a guide only, as there will be significant variations according to area, individual suppliers and personal preferences.
Then, once the construction is complete, you will need to budget for the following:
• Kitchen units and appliances
• Kitchen design and installation
• Flooring
• Furniture for your new dining area
• Painting & decorating
If you would like a quotation tailored to your specific requirements, please click here to be taken to Buildteam’s online quotation tool.





