How much is 20 John Street, Cwmcarn, Newport, Caerphilly, NP11 7EH worth?
Estimated value — July 2026
£190,000
Likely range £147,000 – £235,000Four in five similar homes sold within their range when we tested it.
Latest recorded sale September 2016
54%
confidence
Medium
Typically within 11% of the sale price
Property details
Mid-terrace house
John Street · Newport · NP11 7EH
Energy performance
Mains Gas (Not Community) · EPC 8786-7126-4640-7532-1902 · inspected June 2016
Address
- District
- Caerphilly
- County
- Caerphilly
Value over time
- Modelled value
- Recorded sale
- Likely range (80%)
- Today's estimate
Modelled by indexing this property's most recent recorded sale, month by month, against the UK House Price Index for its area and property type. Earlier sales are shown as recorded. Today's estimate also uses the property's earlier sales, so it can sit a little off the line. The shaded band is where four in five prices fell when we tested this line against real sales of similar homes; it widens the further a month is from the most recent sale.
View as a table
| Year | Modelled value | Likely range | Recorded sale |
|---|---|---|---|
| 2016 | £114,999 | £74,133 – £122,202 | £114,950 |
| 2017 | £123,921 | £95,012 – £132,452 | — |
| 2018 | £135,958 | £112,650 – £147,619 | — |
| 2019 | £138,694 | £117,013 – £152,934 | — |
| 2020 | £148,572 | £125,350 – £166,043 | — |
| 2021 | £163,713 | £137,475 – £185,292 | — |
| 2022 | £181,401 | £151,048 – £207,697 | — |
| 2023 | £175,774 | £146,068 – £203,008 | — |
| 2024 | £176,975 | £147,173 – £207,818 | — |
| 2025 | £185,361 | £154,536 – £222,189 | — |
| 2026 | £190,288 | £158,741 – £230,785 | — |
Sale history
Mortgage calculator
£1,020
Estimated monthly repayment
£171,000
Loan amount
£196,107
Total interest
£367,107
Total repayable
A guide only, based on a capital repayment mortgage held at a constant interest rate for the full term. Not a mortgage offer or financial advice.
Related properties
- 21 John Street, Cwmcarn, Newport, Caerphilly, NP11 7EH£170,000 · 2024£171,000
- 13 John Street, Cwmcarn, Newport, Caerphilly, NP11 7EH£123,000 · 2018£173,000
- 6 John Street, Cwmcarn, Newport, Caerphilly, NP11 7EH£135,000 · 2017£208,000
- 14 John Street, Cwmcarn, Newport, Caerphilly, NP11 7EH£98,000 · 2008£180,000
- 23 John Street, Cwmcarn, Newport, Caerphilly, NP11 7EH£120,000 · 2006£204,000
- 11 John Street, Cwmcarn, Newport, Caerphilly, NP11 7EH£120,000 · 2018£167,000
- 8 John Street, Cwmcarn, Newport, Caerphilly, NP11 7EH£80,000 · 2014£143,000
- 28 John Street, Cwmcarn, Newport, Caerphilly, NP11 7EH£85,000 · 2011£162,000
- 33 John Street, Cwmcarn, Newport, Caerphilly, NP11 7EH£52,000 · 1999£234,000
- 7 John Street, Cwmcarn, Newport, Caerphilly, NP11 7EH£32,500 · 1997£164,000
About this property
20 John Street, Cwmcarn, Newport, Caerphilly, NP11 7EH is a mid-terrace house on John Street in Newport, Caerphilly. Stede's estimated value for July 2026 is £190,000. Four in five similar homes sold within their likely range when tested; for this property that range is £147,000 to £235,000. It re-indexes the property's recorded sale prices to today using the UK House Price Index. The confidence score is 54 out of 100 (medium): estimates like this one are typically within 11% of the eventual sale price.
It last sold in September 2016 for £114,950. The current estimate is 65% higher than that price. The current owner has held it for about 10 years.
Its EPC energy-efficiency rating is band D (65 out of 100), with a potential of band B (87) after the recommended improvements. The certificate records a total floor area of 72 m² (775 sq ft). It was lodged in June 2016.
The modelled value is up 3% over the past year and up 23% over the past five years.
Among 10 nearby properties Stede tracks in the NP11 area, estimated values run from £143,000 to £234,000. This mid-terrace house's £190,000 sits toward the upper end of that range.
Common questions
How much is 20 John Street, Cwmcarn, Newport, Caerphilly, NP11 7EH worth?
Stede estimates 20 John Street, Cwmcarn, Newport, Caerphilly, NP11 7EH is worth £190,000 as of July 2026, within a likely range of £147,000 to £235,000. The estimate is generated automatically from recorded sale prices and the UK House Price Index, and is not a formal valuation.
When did 20 John Street, Cwmcarn, Newport, Caerphilly, NP11 7EH last sell?
It last sold in September 2016 for £114,950.
What type of property is 20 John Street, Cwmcarn, Newport, Caerphilly, NP11 7EH?
It is recorded as a Mid-terrace house on John Street in the NP11 postcode area.
What is the EPC rating of 20 John Street, Cwmcarn, Newport, Caerphilly, NP11 7EH?
20 John Street, Cwmcarn, Newport, Caerphilly, NP11 7EH has an EPC energy-efficiency rating of band D (65 out of 100). Its potential rating after the recommended improvements is band B (87). The certificate records a floor area of 72 m² (775 sq ft). EPC data is published by the Ministry of Housing, Communities & Local Government and reflects the most recent certificate on record.
How reliable is this estimate?
The confidence score is 54 out of 100 (medium). Tested against real sales of similar homes, estimates like this one are typically within 11% of the sale price, and four in five sold within their likely range. The figure is a data model, not a RICS valuation or Home Report, and should not be used for mortgage or legal decisions.
How does Stede calculate this estimate?
Stede re-indexes this property's recorded sale prices to today using the House Price Index for its type and region, and tests the result against real sales to set the likely range and confidence. Full detail is on the methodology page.
How we calculated this
This estimate re-indexes the property's recorded sale prices to today with the UK House Price Index for its area and type. Its range and confidence come from testing the same method against 80,998 real sales of similar homes.
2
Valuation methods used
1
Recorded sales on file
2016
Most recent recorded sale