Building a New Country House: The Routes That Actually Work

The Dream — and the Clause Everyone Asks About

Every year, we meet families who share the same dream: a new house in the English countryside, designed entirely around their lives. And every year, many of them arrive having read about the same route to it — the so-called “Paragraph 80 house”, the planning clause that permits a wholly new house in open countryside if its design is of truly exceptional quality.

It is a romantic idea, and the houses that succeed are remarkable. But after three decades of designing and building high-end country houses, our honest counsel is usually this: Paragraph 80 is rarely the right route — and there are two better ones.

What Paragraph 80 Is — and Why We Rarely Recommend It

Paragraph 80 of the National Planning Policy Framework (formerly Paragraph 79, and before that Paragraph 55) allows an isolated new dwelling in open countryside where the design is “of exceptional quality” — outstanding architecture that raises the standard of design in its area.

The difficulty is not ambition; it is arithmetic. Only a small handful of these consents are granted across the whole of England in a typical year. The process demands years of design development, design review panels, planning consultants and, frequently, appeals — with substantial cost and no assurance of consent at the end. For most families who want to be living in their house within a sensible horizon, the odds and the timescale are simply not attractive. We are always willing to discuss whether a site has genuine Paragraph 80 potential — but we would never let a client pursue it without understanding how narrow that gate is.

Route One: The Replacement Dwelling

The route we most often advise is beautifully simple in concept: buy an existing house on the right land, and replace it.

Most local plans permit a replacement dwelling on the site of an existing home in the countryside. The house you buy may be unremarkable — a tired 1960s bungalow, a poorly altered farmhouse, a house of no particular merit — because what you are really buying is the site: the setting, the views, the drive, the established gardens and the principle that a house belongs there.

Handled well, a replacement dwelling can deliver a wholly new country house — designed from a blank sheet around your life — on a plot that could never have won consent for a new-build in open land. The craft lies in the planning strategy: understanding the local authority’s policies on scale and siting, the extent to which the new house may exceed the old, and how design quality can earn latitude. This is precisely why we assess properties for clients before purchase, through our early development appraisals — so you buy the site knowing what it can become.

Route Two: The Transformative Extension

The second route suits houses with good bones in outstanding positions: remodel and extend an existing house so comprehensively that it becomes, in effect, a new home.

Planning policy typically limits how far a house in the countryside may be extended — but these limits are not absolute. With a considered design case, a sensitive response to the setting, and a well-argued planning strategy, it is often possible to achieve an extension materially larger than would ordinarily be approved — reordering the whole house around it, so that what emerges is unrecognisable from what was bought.

Our farmhouse and stables transformation shows what this route can achieve: the character and permissions of an existing building, with the light, proportion and performance of a new one.

Which Route Is Right?

It depends on what you have found, and what you are hoping to find. As a rule of thumb: if the land is exceptional and the house is not, think replacement dwelling. If the house has quality worth keeping — or listing protects it — think transformation, with our listed building architects involved from the start. And if you have yet to find either, involve us during the search: the most expensive mistakes in country house building are made on the day of purchase, not on site.

Planning outcomes can never be promised — anyone who tells you otherwise should be treated with caution. What experience does provide is judgement: knowing which sites carry genuine potential, which battles are worth fighting, and how design quality opens doors that policy alone keeps shut.

If you are weighing a countryside purchase or beginning the search for a site, we would be pleased to advise privately — or read more about our approach to designing new country houses.