Updated monthly · rents for August 2026 · Wales
Rental Yields in Caerphilly
The average private rent in Caerphilly was £747 a month in August 2026, and the average property price was £197,542 in July 2026. That gives a gross rental yield of 4.5%, which ranks 157th of 316 local authorities in England and Wales and 10th of 22 in Wales.
Take off a letting agent, repairs and one empty month a year and the net yield is about 3.5%, before mortgage costs and tax. In the year to August 2026 the average rent rose 8.1%, and in the year to July 2026 the average price rose 4.2%. Rents have moved ahead of prices, which pushes gross yields up.
Official data: ONS average rents (August 2026) and HM Land Registry average prices (July 2026), for the whole local authority. All yields are before tax.
Gross yield
4.5%
#157 of 316 in England & Wales
Net yield
3.5%
After letting, repairs and voids
Average rent
£747
+8.1% in 12 monthsAverage price
£197,542
+4.2% in 12 monthsWhat a typical Caerphilly rental makes after costs
Gross yield ignores costs. Here is a property at Caerphilly's average price and rent, run through the RealYield calculator with the same assumptions Deal Check uses. Costs take the yield from 4.5% to 3.5%, a gap of 1.0 percentage points. Rent covers these costs and the mortgage interest up to a rate of about 4.6%.
| A year at £197,542 and £747 pcm | £ a year |
|---|---|
| Rent for 12 months | £8,964 |
| Less one empty month | -£747 |
| Less letting agent (12% of rent collected) | -£986 |
| Less repairs (5% of rent collected) | -£411 |
| Net income before mortgage (net yield 3.5%) | £6,820 |
| Less mortgage interest (£148,157 at 4.5%, interest only) | -£6,667 |
| Cashflow before tax | £153 |
| Less income tax (higher-rate taxpayer, owned personally, Section 24) | -£1,395 |
| Cashflow after tax | -£1,242 |
That works out at £13 a month before tax and a loss of £103 a month after tax, on a £49,385 deposit (25%) before stamp duty and buying costs.
Source: RealYield calculator engine on the ONS average rent (August 2026) and HM Land Registry average price (July 2026). Assumptions: 25% deposit, 4.5% interest-only mortgage, 12% letting agent, 5% of rent on repairs, one empty month a year, no service charge or ground rent. Tax is illustrative: the property profit taxed at the higher rate with the 20% mortgage interest credit, ignoring your other income and allowances. An average, not a valuation of any property.
How Caerphilly compares with Wales
Caerphilly's gross yield ranks 157th of 316 local authorities in England and Wales and 10th of 22 in Wales. In Wales, gross yields run from 3.1% in Powys to 5.8% in Merthyr Tydfil.
| Measure | Caerphilly | Wales median | England and Wales median |
|---|---|---|---|
| Gross yield | 4.5% | 4.4% | 4.4% |
| Net yield (after letting, repairs, voids) | 3.5% | 3.3% | 3.4% |
| Average rent (pcm) | £747 | £754 | £1,022 |
| Average price | £197,542 | £209,092 | £288,085 |
| Rent change, 12 months | +8.1% | +5.0% | +3.9% |
| Price change, 12 months | +4.2% | +2.8% | +1.9% |
Medians of the local authority averages (22 in Wales, 316 in England and Wales), not weighted by population. Rents: ONS Price Index of Private Rents, August 2026. Prices and price change: HM Land Registry UK House Price Index, July 2026. Net yields use the same assumptions as the typical property above and the Net Yield Index. All before tax.
Average rent in Caerphilly by bedrooms
| Property size | Average rent (pcm, August 2026) |
|---|---|
| 1 bedroom | £551 |
| 2 bedrooms | £689 |
| 3 bedrooms | £777 |
| 4+ bedrooms | £1,094 |
Source: ONS Price Index of Private Rents, August 2026. A 2-bedroom rent against the average flat price gives a flat yield of 7.8%, gross.
Average house price in Caerphilly by property type
| Property type | Average price (July 2026) |
|---|---|
| Detached | £313,953 |
| Semi-detached | £201,948 |
| Terraced | £168,126 |
| Flat / maisonette | £106,676 |
Areas to compare with Caerphilly
Local authorities in Wales with the closest gross yields to Caerphilly.
- Rental yields in Flintshire4.5% gross, 3.4% net£811 pcm · £215,892
- Rental yields in Bridgend4.4% gross, 3.3% net£763 pcm · £209,569
- Rental yields in Conwy4.4% gross, 3.3% net£796 pcm · £217,829
- Rental yields in Denbighshire4.3% gross, 3.3% net£718 pcm · £201,452
- Rental yields in Wrexham4.3% gross, 3.3% net£770 pcm · £212,778
Caerphilly rental yield questions
What is the average rental yield in Caerphilly?
The average gross rental yield in Caerphilly is 4.5%, from an average rent of £747 a month (ONS, August 2026) and an average price of £197,542 (HM Land Registry, July 2026). It ranks 157th of 316 local authorities in England and Wales and 10th of 22 in Wales. After a 12% letting agent fee, 5% of rent on repairs and one empty month a year, the net yield is about 3.5%. Both figures are before mortgage costs and tax.
What is the average rent in Caerphilly?
The average private rent in Caerphilly was £747 per calendar month in August 2026, according to the ONS Price Index of Private Rents. A 2-bedroom home averaged £689 a month. Over the previous 12 months the average rent rose 8.1%, against a median change of +3.9% across England and Wales.
What is the average house price in Caerphilly?
The average property price in Caerphilly was £197,542 in July 2026, according to the HM Land Registry UK House Price Index. The average flat or maisonette cost £106,676. Over the previous 12 months the average price rose 4.2%.
How do rental yields in Caerphilly compare with the rest of Wales?
Caerphilly's gross yield of 4.5% is 0.1 points above the median of 4.4% for the 22 local authorities in Wales, and 0.1 points above the England and Wales median of 4.4%. Across the region, gross yields run from 3.1% in Powys to 5.8% in Merthyr Tydfil. These are gross yields, before costs and tax.
Why is the net yield in Caerphilly lower than the gross yield?
Gross yield counts every month's rent and no costs. On a property at Caerphilly's average price and rent, one empty month a year costs £747 in lost rent, letting agent fees at 12% cost £986 and repairs at 5% of rent cost £411. That takes the yield from 4.5% to about 3.5%, a gap of 1.0 percentage points. Both yields are before mortgage costs and tax, which reduce the return further, as would any service charge or ground rent.
Is Caerphilly good for buy-to-let?
RealYield does not rate areas as good or bad investments, because the answer depends on the property, the price paid and your own circumstances. On the published averages, Caerphilly's gross yield ranks 157th of 316 local authorities in England and Wales and 10th of 22 in Wales. With a 25% deposit and a 4.5% interest-only mortgage, a property at the average price and rent would make about £13 a month before tax after letting, repair and void costs. Rent stops covering those costs and the interest at a mortgage rate of about 4.6%. Individual properties vary widely, so test a specific deal before relying on an area average.
Rents: ONS Price Index of Private Rents, August 2026. Prices: contains HM Land Registry data © Crown copyright and database right 2026, July 2026. Both used under the Open Government Licence v3.0. Averages describe the whole local authority and individual properties vary widely. Net yields and cashflow are RealYield calculations on those averages with the assumptions stated above.
This page is for informational purposes only and does not constitute financial or investment advice. Yields shown are before tax. Always verify current figures and seek independent professional advice before making investment decisions.