Arrow coat hook

See Design House Stockholm.

Mirrors to direct sunlight into the patio

Obviously they would track the Sun.

Hidden sound system

These actual lamps are not for me but the concept is sound. Large floorstanders are so 2011.

Overhead grape vine

See eHow. Should be able to swing them out of the way in Winter.

Patio atrium

Glass enclosure above the patio, reaching up to and then extending the roof line. With sliding windows that can be opened remotely from the ground.

See Trombé.

Smart glass

Goes without saying, really: smart glass everywhere!

Folding balcony table

Shouldn't be too taxing to make one, but this is one from Preferred Living.

iBride laser-cut tray

See the iBride collection.

Eva Solo Bordeaux wine glass

See Eva Solo.

Outdoor candelabra

Outdoor candelabra suspended above the patio. I would rather one with candles (which may mean you have to lower it) but here's another kind.

Astro turf the patio

See Synlawn.

Giant-sequin wall

http://ourlifeisbetterthanyours.com/2011/12/30/sequined-wall-yes-please/

Vertical garden

Outdoor vertical garden in a small patio. (With an embedded neon sign.)

http://www.verticalgardendesign.com/projects/replay-ii-exterior

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Onwards and upwards

I don't know the logistics of building through the loft of an end of terrace house to create a rooftop retreat. But in my mind it works very well.

Kartell show

The chairs are cool, but check out that chandelier!

Stelton cook's knife

A thing of beauty. See the Stelton website.

Bank vault door

I'm not sure where to get one — nor who to ring should you lose your keys — but a bank vault door would be amazing. (Or even a large safe door.)

Seletti Bauchair

http://www.seletti.it/living/bauchair.htm

Agape shower

http://www.agapedesign.it/prodotti/309-al-dente

Agape spiral shower screen

http://www.agapedesign.it/