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Garage conversion or extension?

We want to add an extra bedroom to our two bed home. Which would be the best option in terms of adding value: a garage conversion or an extension? Is a two storey extension twice as expensive as a single storey?

Asked on Nov 10 2009, Home Improvement in Glasgow | Report content

Answers (2)

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  • A properly designed and constructed extension will add more value to a property than a garage conversion. Conversions seldom achieve the same degree of thermal and sound insulation and will probably lead to a less than ideal floorplan for the building. You are also losing a garage which may deter furure buyers. As regards costs of extension, an extension providing, e.g., 200 square feet of additional space on each of ground and first floors will cost about 50% more than a single storey, 200 square foot extension. Double the additional space for 1 and a half times the cost! This is because both extensions require a 200 square foot underbuilding and a 200 square foot roof but the 2 storey extension gives twice the floorspace for the same roof and underbuilding cost.

    Answered on Nov 18 2009, Report content
  • Go for the garage conversion, cost effective, updates your property and also you can have the garage built so home wall insulation is built into the walls to the garage, so you can always change the garage to living room etc in the future if wanted.

    Answered on Mar 23 2010, Report content

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