Most valuable letterbox numbers revealed

House buyers in Northland don't seem to mind the number 13. Photo: File

Northland house buyers seem to have a liking for the traditionally unlucky number 13.

Homes.co.nz, which publishes sales histories and values, has analysed the relationship between letterbox numbers and house values.

Its estimated median value for a property at number 13 in Northland was $395,000, the second highest estimate for any number under 20.

The most valuable number was 12, with an average value of $397,000.

The least valuable street number in Northland was 18, with a median estimated value of $370,000.

Northland buyers were also indifferent to the number four, considered unlucky in Chinese culture. It's estimated value ranked near the middle of the pack.

Barfoot & Thompson Whangarei branch manager Martin Dear said he'd never heard of anyone shying away from particular letterbox numbers, nor had he come across any other house-buying superstitions in his job.

"I've never ever, ever had anyone say to me 'that number's not good'."

Homes.co.nz spokesman Jeremy O'Hanlon said the idea that a number on a letterbox could impact values was a little absurd.

However the number 13 seemed to drive down values in most regions.

"It's funny that Whangarei seems to buck the trend and value 13 higher than all but the number 12. While the Bay of Plenty and Hawke's Bay seem to have a real distaste for it.

"Perhaps it's worth hunting for the number 13 in your property search to grab a bargain."