Allsop Residential raised £74.8m from its sale last week – a 38% increase on 2015’s February auction result.
The success rate was 73%, with 205 out of 282 lots sold, of which 164 went to bidders in the room.
Large lots included a freehold mid-terrace building in Leytonstone, E11, arranged as three shops and 27 studio flats.
It was guided at £2.8m and sold for £3m.
A leasehold flat in St John’s Wood, NW8, sold for £2.8m off a guide of £2.5m.
Allsop Residential auctioneer and partner Gary Murphy said the result reflected the rising number of high-value lots coming to auction, as sellers appreciated the results that could be achieved by open bidding.
He said: “It feels now that it is becoming a much more established way to sell high-value lots. It is beginning to snowball.”
A total of 19 lots sold for more than £1m, with the average selling for £2.8m.
Murphy said it was difficult to say whether the sale had benefited from a surge in buyers hoping to avoid the 3% rise in marginal stamp duty for second homes and buy-to-lets from 1 April.
One unusual lot was a leasehold South Kensington storeroom guided at £25,000 to £30,000, which sold to a private individual for £82,500. It has a sink and windows and is accessed from the rear half-landing of a mid-terrace building.
Murphy said it could be used for storage or for a desktop computer, although it does not have permission for use as an office.
The auction was held on 18 February at The Cumberland, W1.
