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

Breaking News

Latest ONS Private Rent and House Prices Index

Average UK monthly private rents increased by 5.0%, to £1,360, in the 12 months to October 2025 (provisional estimate); this annual growth rate is down from 5.5% in the 12 months to September 2025. Average rents increased to £1,416 (5.0%) in England, £817 (6.7%) in Wales and £1,008 (3.4%) in Scotland, in the 12 months…
Read More
Estate Agent Talk

Winter property checklist: How to protect your home this season

As temperatures drop and winter approaches, Propertymark, the leading professional body for estate and letting agents, is urging homeowners and tenants to prepare their homes for the colder months with a few simple maintenance checks that can prevent costly damage and ensure safety and comfort throughout the season. According to Propertymark, winter is one of…
Read More
Breaking News

London homebuyers have paid nearly £25bn in Stamp Duty over the last decade

The latest research from Jefferies London shows that, as many await news of potential Stamp Duty reform in the upcoming Autumn Budget, homebuyers across the capital have collectively paid almost £25bn (£24.9bn) in Stamp Duty over the last ten years, with buyers in prime central London contributing the largest share by a considerable margin. Jefferies…
Read More
Letting Agent Talk

Slow maintenance responses are driving tenant anxiety

New research from Adiuvo, the UK’s leading provider of 24/7 property management support, reveals that almost 60% of tenants report feeling increased stress or anxiety as a result of maintenance issues in their rental property, and for most, the lack of landlord action is more stressful than the maintenance issues itself. Adiuvo has surveyed 1,.013…
Read More
Estate Agent Talk

Agent confidence split as housing market braces for Autumn Budget impact

The latest agent sentiment survey from GetAgent.co.uk reveals that, while property market activity has remained resilient through 2025, confidence among agents is now divided as the industry awaits key housing announcements in the Autumn Budget. The survey of estate agents, commissioned by GetAgent, found that whilst cautiously optimistic, there are increasing concerns about external economic…
Read More
Breaking News

Letting agents to play pivotal role in Renters’ Rights Act rollout

The latest lettings sector insight from Dwelly, one of the UK’s leading lettings acquisition and success planning experts, has revealed that 57% of landlords do not feel prepared for the introduction of the Renters’ Rights Act, with many looking to their letting agent for guidance, highlighting the vital role letting agents will play in helping…
Read More