Despite a difficult year for landlords battling with the Covid-19 lockdown, the value of their BTL portfolios has risen by 8.6%.
According to research from real estate firm Barrows and Forrester, this equates to values rising by £38,020 on average.
They have made the calculation from Government figures which reveal that the average house cost £254,525 last December - that's up from December 2019's figure of £234,412.
And with a landlord owning 1.9 properties on average, means that a BTL property portfolio is worth an average of £491,234.
The biggest price rise was seen for landlords in the South West where portfolios grew by £49,000 over the past year to £530,890.
Most valuable landlord portfolios
However, the most valuable landlord portfolios are to be found in London where landlords own, on average, two properties and prices rose by £34,000 to just under £1 million.
The firm's managing director, James Forrester, said that the current stamp duty holiday had helped to deliver a sharp rise in the value of buy to let investment portfolios.
He added: "However, it seems that the government will, true to form, do their best to spoil the party by increasing capital gains tax in next month's Budget.
"This is astounding given the changes already implemented to tax relief and stamp duty tax thresholds and the impact it has had on landlord numbers."
Mr Forrester says the government appears not to understand that the buy to let sector is crucial to the UK's rental market and having fewer landlords means having fewer properties - and higher rents.
'Investing in BTL property has been popular'
The managing director of Accommodation for Students, Simon Thompson, said: "Investing in BTL property has been popular because it delivers returns and here is evidence that landlords' portfolios are doing well."
News that landlords have enjoyed portfolio price increases, is being underlined with news that as many as 60% of landlords have taken advantage of the stamp duty holiday.
According to Direct Line Business Insurance, three in five landlords with more than one property have expanded their BTL portfolio since July 2020 when the stamp duty holiday was introduced.
And for commercial landlords, they say 79% have taken advantage of the holiday.
Landlords have been investing in properties
The research highlights that 43% of landlords have been investing in properties that are outside of the UK's major cities.
And of those that have done so, 82% of landlords are predicting that more tenants will move out of cities with the growing popularity of remote working leading the trend.
