Buckinghamshire · South East
Home Extension Costs in Milton Keynes
Milton Keynes has above-average home extension costs reflecting its South East location and affluent demographics. The new town's modern housing grid layout offers generous plots well-suited to side and rear extensions.
Extension Types Available in Milton Keynes

Single Storey Extension
A single storey rear or side extension is one of the most popular home improvements in the UK, adding valuable living space without the complexity of multi-level construction.
Estimated cost in Milton Keynes
£31,360 – £49,280
Typical 20m² project

Double Storey Extension
A double storey extension adds significant space on two levels, making it cost-effective per square metre compared to two separate single storey extensions.
Estimated cost in Milton Keynes
£53,760 – £85,120
Typical 40m² project

Loft Conversion
A loft conversion transforms unused attic space into a habitable room, offering one of the best returns on investment of any home improvement project.
Estimated cost in Milton Keynes
£30,800 – £49,000
Typical 25m² project

Kitchen Extension
A kitchen extension creates a modern, open-plan living and dining space, typically extending the rear of the property to accommodate a larger kitchen area.
Estimated cost in Milton Keynes
£31,248 – £50,400
Typical 18m² project

Garage Conversion
A garage conversion transforms an existing garage into a habitable room, offering one of the most affordable ways to add living space without building an extension.
Estimated cost in Milton Keynes
£10,920 – £21,000
Typical 15m² project