The TV star got engaged to rock star Thomas Cohen earlier this year but she says they have no plans to tie the knot in the near future.
She said: “I got engaged six months ago, but we are only just making it public now.
“We first met four years ago and we bumped into each other last Christmas on Portobello Road in Notting Hill, London, and started dating again – and that’s also where he asked me. It was romantic. I’m really happy.
“But we don’t want to get married for a couple of years yet.”
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Peaches - whose whirlwind marriage to musician Max Drummey ended in divorce after just six months in 2009 - says the couple are currently concentrating on renovating the new house they have just bought.
She told Britain's Star magazine: “We’ve just bought a house together in Whitechapel in east London. It’s a Victorian three-bed house and I’ve spent the whole of today trying to sort the mortgage – it’s strange adult territory! And it’s been a real bitch getting it, too. They nearly didn’t let me have it – maybe it’s because they recognised me. It’s the perfect place and size, and we got it pretty cheap for what it is.
“I can’t wait to start decorating! I’m obsessed with buying vintage sofas off eBay for £200. I have five! I don’t see the point of paying £300 for a new one. Thomas came round my flat today, which is tiny so you can barely move for sofas!”