Location: London

2014 has ended with the largest ever monthly fall in average asking prices across the UK, according to Rightmove's latest tally, although they're still up by 7% on an annual basis.

Just a week after the Royal Borough of Kensington & Chelsea claimed victory in an "historic battle" against mega-basements, another London council is eyeing up a subterranean crackdown.

Two of London's most venerable property law firms have decided to team up and create a 120-strong outfit with a combined total of 530 years' experience. May, May & Merrimans (est. 1786) and Hunters (est.

Agents Mutual co-founder Knight Frank has opted to ditch Zoopla and go with Rightmove under OnTheMarket's "two portal rule".

George Osborne's overhaul of the Stamp Duty system, creating a progressive regime that delivers savings to all but the top 2% of home buyers, "has the potential to trigger a material shift in market sentiment…

Former JLL Director Richard Osborne-Young has joined Savills' Prime London Residential Development team.

Penthouse, Cambridge House, One Tower Bridge £15m

Belgravia's Grosvenor Crescent has been named The Most Expensive Street in England & Wales by Lloyds Bank, with an average house price of £16,918,000. Grosvenor Crescent

How do you go about designing the ultimate specification for a landmark super-prime scheme opposite Harrods? What kind of bells and whistles do UHNWIs expect to see in a £12.5m apartment?

London's rental prices are likely to rise by 10% next year, thinks Marsh & Parsons, driven by strong tenant demand and a flourishing corporate sector.

One of the biggest resi deals of 2014 has just gone down in Mayfair. We hear this £45m stonker on the corner of Balfour Place and Mount Street has been snapped up for an undisclosed sum.

Mayor Boris has approved plans for a mega-development on the eastern edge of Canary Wharf, which should create some 3,610 new homes.