Not just your average period terraced house, these properties all present surprising features, whether it be thoroughly overhauled contemporary interiors, bold extensions in contrasting styles, or even their very existence.

Ham & High: Hornsey Lane, Highgate N6. �2,550,000 through Prickett and EllisHornsey Lane, Highgate N6. �2,550,000 through Prickett and Ellis (Image: Archant)

Hornsey Lane, Highgate N6. £2,550,000 through Prickett & Ellis

Ham & High: Hornsey Lane, Highgate N6. �2,550,000 through Prickett and EllisHornsey Lane, Highgate N6. �2,550,000 through Prickett and Ellis (Image: Archant)

Ham & High: Hornsey Lane, Highgate N6. �2,550,000 through Prickett and EllisHornsey Lane, Highgate N6. �2,550,000 through Prickett and Ellis (Image: Archant)

Ham & High: Hornsey Lane, Highgate N6. �2,550,000 through Prickett and EllisHornsey Lane, Highgate N6. �2,550,000 through Prickett and Ellis (Image: Archant)

From the outside, this property looks like any other early twentieth century suburban home.

From the inside, however, it’s another story: the only glimpse you’ll get of the original Arts & Crafts architecture is when looking out of the leaded windows.

Ham & High: Hornsey Lane, Highgate N6. �2,550,000 through Prickett and EllisHornsey Lane, Highgate N6. �2,550,000 through Prickett and Ellis (Image: Archant)

Ham & High: Hornsey Lane, Highgate N6. �2,550,000 through Prickett and EllisHornsey Lane, Highgate N6. �2,550,000 through Prickett and Ellis (Image: Archant)

Ham & High: Hornsey Lane, Highgate N6. �2,550,000 through Prickett and EllisHornsey Lane, Highgate N6. �2,550,000 through Prickett and Ellis (Image: Archant)

Ham & High: Hornsey Lane, Highgate N6. �2,550,000 through Prickett and EllisHornsey Lane, Highgate N6. �2,550,000 through Prickett and Ellis (Image: Archant)

Ham & High: Hornsey Lane, Highgate N6. �2,550,000 through Prickett and EllisHornsey Lane, Highgate N6. �2,550,000 through Prickett and Ellis (Image: Archant)

Ham & High: Hornsey Lane, Highgate N6. �2,550,000 through Prickett and EllisHornsey Lane, Highgate N6. �2,550,000 through Prickett and Ellis (Image: Archant)

The interior architecture was designed by Jan Hobel and has featured on magazine covers with its high spec finish, top of the range appliances and up to the minute technology.

Pilgrim’s Lane, Hampstead NW3. £6,400,000 through Savills

Ham & High: Pilgrim's Lane, Hampstead NW3. £6,400,000 through SavillsPilgrim's Lane, Hampstead NW3. £6,400,000 through Savills (Image: Archant)

Ham & High: Pilgrim's Lane, Hampstead NW3. £6,400,000 through SavillsPilgrim's Lane, Hampstead NW3. £6,400,000 through Savills (Image: Archant)

Following its complete renovation by Eldridge Smerin Architects, this Hampstead house would be unrecognisable to its original Victorian inhabitants.

The lateral extension is built in a style that is harmonious with the original building but entirely contemporary and the interior is a lesson in slick minimalism.

Ham & High: Pilgrim's Lane, Hampstead NW3. £6,400,000 through SavillsPilgrim's Lane, Hampstead NW3. £6,400,000 through Savills (Image: Archant)

Ham & High: Pilgrim's Lane, Hampstead NW3. £6,400,000 through SavillsPilgrim's Lane, Hampstead NW3. £6,400,000 through Savills (Image: Archant)

Ham & High: Pilgrim's Lane, Hampstead NW3. �6,400,000 through SavillsPilgrim's Lane, Hampstead NW3. �6,400,000 through Savills (Image: Archant)

Ham & High: Pilgrim's Lane, Hampstead NW3. £6,400,000 through SavillsPilgrim's Lane, Hampstead NW3. £6,400,000 through Savills (Image: Archant)

The clean white rooms are complemented by an impressive glass staircase while the back of the property is a floating steel and glass box.

Back Lane, Hampstead NW3. £7,500,000 through Knight Frank

Ham & High: Back Lane, Hampstead, London, NW3. Available through Knight Frank for �7,500,000Back Lane, Hampstead, London, NW3. Available through Knight Frank for �7,500,000 (Image: Archant)

Walk down this pretty, cobbled lane in Hampstead Village and you wouldn’t even know this seven bedroom house was there, hidden as it is behind steel security gates.

Ham & High: Back Lane, Hampstead, London, NW3. Available through Knight Frank for �7,500,000Back Lane, Hampstead, London, NW3. Available through Knight Frank for �7,500,000 (Image: Archant)

Ham & High: Back Lane, Hampstead, London, NW3. Available through Knight Frank for �7,500,000Back Lane, Hampstead, London, NW3. Available through Knight Frank for �7,500,000 (Image: Archant)

Ham & High: Back Lane, Hampstead, London, NW3. Available through Knight Frank for �7,500,000Back Lane, Hampstead, London, NW3. Available through Knight Frank for �7,500,000 (Image: Archant)

Ham & High: Back Lane, Hampstead, London, NW3. Available through Knight Frank for �7,500,000Back Lane, Hampstead, London, NW3. Available through Knight Frank for �7,500,000 (Image: Archant)

The low-rise property is spread over 5585 sq ft and is made from two buildings joined together, resulting in two quite distinct styles in the home: from one side it resembles a bungalow, while the other end of the building is taller.

The spacious, open-plan home is currently configured for family life and has a large decked roof terrace with views over London, while a garage and patio complete the Californian vibe of this sprawling hidden gem.