Friday 13 tends to be the quietest day for house sale completions compared with any other Friday, according to analysis.
Rightmove looked at sales data going back to January 1995, reviewing the number of properties that have a Land Registry record on a certain day.
The website said that Fridays are normally the busiest day of the week for home moves.
Its research also found the 13th day of the month is typically the quietest day for completions compared with any other day of the month.
The superstitions go beyond moving, as houses numbered 13 are valued at £5,521 lower than the average of £364,139.
Rightmove analysed property valuations of over 10 million houses numbered one to 100 and found properties numbered 13 are typically valued the lowest.
This could, however, provide some bargains for home buyers – meaning the number 13 is lucky after all.
At the other end of the spectrum, houses numbered one are typically valued at £397,632. Homes with the “lucky” number seven have an average valuation of £369,770.
Tim Bannister, Rightmove’s property expert, said: “Despite the superstitions surrounding the number 13 and Friday the 13, buyers willing to challenge these traditions could find themselves in a prime position to negotiate better deals.
“Our data shows that significant discounts are often available on properties with this traditionally unlucky number. With potential savings of over £5,000 – money that could be put towards stamp duty or other moving expenses – even the most superstitious buyers might be tempted to overlook the number on the door.”
Toby Leek, president of NAEA (National Association of Estate Agents) Propertymark, said: “To this day it’s still common for people to be a little apprehensive regarding the number 13, so it’s no surprise their superstitions are also noted when looking at the difference in completions on Friday 13.
“In many streets across the UK, the number 13 doesn’t even exist, however where they do, homeowners have been known to rename them from a number to a written name as many people perceive that this removes any connected connotations.”
Here are the top 10 most expensive house numbers typically and the average property value, according to Rightmove:
1. One, £397,632
2. Two, £390,630
3. Three, £378,807
4. Four, £378,016
5. Five, £373,948
6. Six, £371,531
7. Seven, £369,770
8. 78, £367,818
9. Eight, £367,675
10. 76, £366,865
And here are the 10 least expensive house numbers, with the average property value:
1. 13, £358,618
2. 21, £359,538
3. 27, £359,561
4. 19, £360,112
5. 23, £360,196
6. 16, £360,228
7. 73, £360,251
8. 83, £360,269
9. 17, £360,350
10. 24, £360,391