Home Extensions in Grange Farm Milton Keynes

Grange Farm sits between Crownhill and Two Mile Ash in the north-west of Milton Keynes and was developed primarily in the late 1980s and early 1990s. The area features a strong mix of detached and semi-detached family homes on well-proportioned plots — exactly the kind of property that lends itself to a rear or side extension.

The detached homes that make up a large proportion of Grange Farm have good garden depth and plot width. A single storey rear extension that creates an open-plan kitchen and dining space is the most common brief we receive in this part of MK. Most detached properties here extend comfortably to 4 metres under Permitted Development — no planning application and no waiting on a council decision.

Semi-detached homes in Grange Farm are equally well suited to extending. A single storey side or rear addition can create a utility room a home office or an extended kitchen-diner — all within Permitted Development on most plots. Where a more substantial project is needed a double storey extension adds bedroom and bathroom space at first floor level alongside the extended ground floor.

Grange Farm borders Crownhill — the neighbourhood that gives our business its name and one where we have completed multiple projects. That local knowledge carries directly across to Grange Farm. We know the ground conditions the brickwork and the planning picture before we arrive at your door. Browse our full portfolio of completed extensions across Milton Keynes to see the standard of finish we deliver in this part of MK.

Do I need planning permission for an extension in Grange Farm? Most single storey rear and side extensions in Grange Farm fall within Permitted Development. Detached houses can extend up to 4 metres to the rear and semi-detached properties up to 3 metres. Side extensions are limited to half the width of the original house. We confirm exactly what applies to your property at the initial site visit. Read our full guide on planning permission for home extensions in Milton Keynes.

How much does a home extension cost in Grange Farm? We work from £2,500 per square metre including VAT for single storey side and rear extensions built within Permitted Development. A typical 20 to 25 square metre rear extension comes in at £50,000 to £62,500 all in — foundations groundwork structure roofing internal plastering flooring and Building Control included. One fixed price agreed in writing before we start. See our full home extension cost guide for Milton Keynes.

How long does an extension take in Grange Farm? A single storey extension within Permitted Development typically takes ten to fourteen weeks from first call to completion certificate — four to six weeks of pre-construction followed by six to eight weeks on site. We provide a full programme with milestone dates before work starts.