Pollution-free properties secure 57% more rental income

The latest research by leading lettings management platform, Howsy, has found that areas, where CO2 emissions are at their lowest, are home to much higher average rental costs compared to those with higher levels of CO2.

Howsy looked at the average cost of renting across 65 of the largest towns and cities based on population size, as well as the CO2 emissions per capita in each location, and what impact this had on the cost of renting.

While many living things emit CO2 when they breathe, it is widely considered as a pollutant due to the excessive levels produced by cars, planes and power plants, as well as other land uses and the burning of fossil fuels.

The research shows that when looking at areas based on the CO2 emissions per capita, there is a clear trend whereby areas home to a lower level cost more when it comes to the average rent, compared to those with much higher levels.  

The lowest bracket, areas where there are 3.00-4.00 CO2 emissions per capita, are home to an average rental price of £800. This drops to £760 per month in areas with 4.01-5.00 Co2 emissions per capita, and again to £685 in the 5.01.6.00 threshold and £559 in the 6.01-7.00 threshold.

In areas with the highest level of CO2 emissions at 7.01 per capita or higher, the average rent is just £511, a 57% difference when compared to the other end of the Co2 rental scale.

When looking at the 10 worst areas with the highest levels of CO2 per capita, just one is home to a higher average rent when compared to the current UK average of £953 per month – Crawley where rents average £990 per month.

Swansea is the worst area for a mix of poor rental returns and pollution with 22.43 tons of CO2 emitted per capita and an average rental price of just £552.

Similarly, Middlesborough, Doncaster, Warrington and Newport are home to high levels of CO2 emissions and below average rental prices.

But it’s not all bad news if you’re a tenant. When looking at the top 10 areas with the lowest CO2 emissions per capita there are seven locations that come in with an average rent below that of the current UK average.

Plymouth (£604), Ipswich (£663), Southampton (£799), Luton (£813), Worthing (£832), Southend (£843) and Bournemouth (£867) are all cheaper than the UK average when it comes to renting with CO2 emissions per capita coming in below 3.5 tons per capita.

Founder and CEO of Howsy, Calum Brannan, commented:

“As a landlord, looking to less polluted areas seems to provide the best rental income when it comes to a buy-to-let investment and it’s interesting to see how less pollution directly correlates with higher rental prices.

As a tenant, the cost of some fresh air is likely to cost you when looking for a place to let, but there are still plenty of pockets that are not only home to a low level of Co2 emissions but also below average rental prices.

Unfortunately for many, the nature of renting will mean fresh air is low on the list of requirements for a home, but it’s certainly worth remembering if you’re looking to invest in a buy-to-let and could be the cure when turning a profit despite the government’s attempts to dampen appetites in the sector.”

Emissions and the average rent
Category – CO2 emission per capita (tons)
Average monthly rent
Difference between the top and bottom bracket
3.00-4.00
£800
56.56%
4.01-5.00
£760
5.01-6.00
£685
6.01-7.00
£559
7.01 +
£511
UK average = 5.32
£953
Notes:
> Based on the top 65 cities and towns by population size
> Categories of emission per capita vs average rent
Ranking – by highest emissions per capita
City/town
CO2 emissions per capita 2017 (tons)
Average rent (2019)
Swansea
22.43
£552
Middlesbrough
12.06
£469
Doncaster
6.67
£503
Warrington
6.61
£635
Newport
6.12
£539
Preston
5.81
£564
Wakefield
5.77
£548
Barnsley
5.59
£494
Aberdeen
5.43
£735
Crawley
5.32
£990
Ranking – by lowest emissions per capita
City/town
CO2 emissions per capita 2017 (tons)
Average rent (2019)
Southampton
3.62
£799
London
3.61
£1,697
Bournemouth
3.48
£867
Plymouth
3.4
£604
Exeter
3.39
£1,084
Luton
3.24
£813
Southend
3.23
£843
Brighton
3.22
£1,298
Worthing
3.11
£832
Ipswich
3.02
£663

 

Sources
Emissions data
Average private rent

Properganda PR

National and local media coverage for property businesses. Journo quotes delivered in minutes.

You May Also Enjoy

Social Housing 2019
Breaking News

London defies Build to Rent slowdown

The latest analysis by Foxtons shows that whilst the wider Build to Rent (BTR) sector is running low on steam when it comes to the delivery of new schemes, London is continuing to push forward, with the number of BTR schemes in planning up by 8.5% year on year. Foxtons analysed the latest BTR planning…
Read More
Breaking News

Disappointing year for UK construction gives way to industry-wide recovery

Despite 2025 downturn, Glenigan predicts a ‘phoenix moment’ for UK construction in 2026 8% decline in detailed planning approvals year-on-year 11% decline in main contract awards year-on-year 20% decline in project starts against the preceding year-on-year Today, Glenigan, one of the construction industry’s leading insight and intelligence experts, releases the January edition of its Construction…
Read More
Breaking News

Agents report early uplift in buyer activity

Agents report early uplift in buyer activity, but few are investing to capitalise on improving market conditions The latest research from Property DriveBuy has found that estate agents are starting 2026 on a stronger footing, with the majority reporting an increase in buyer enquiries and viewing requests, while one in five are also seeing more…
Read More
Breaking News

Smaller deposits and higher LTVs mortgages drive FTB activity

Gen Z optimistic about homeownership in 2026 amid rising demand for cheaper homes, smaller deposits and higher LTVs Barclays data reveals that 22 per cent of first-time buyers purchased homes with deposits under £20,000 in December, up 8 percentage points year-on-year 44 per cent of first-time buyers opted for 85-90 per cent LTV mortgages in…
Read More
Breaking News

Improved affordability provides boost to first-time buyers

Nationwide Housing Affordability Report Continued improvement in affordability helped support first-time buyer activity over 2025 Considerable variation in affordability remains across occupational groups, with affordability most challenging for people working in sales & customer service, but easier for those in managerial and professional roles Affordability most stretched in London and South of England, while North…
Read More
Breaking News

UK rents fall for first time on record

Hamptons Monthly Lettings Index – December 2025 Rents end 2025 below where they started for the first timeon record. Rents in the capital return to 2023 levels as five of 11 GB regions see rents fall in 2025 Newly agreed rents dipped by 0.7% across Great Britain in 2025 – the first time rents fell…
Read More