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Argae Hall House, Garthmyl, Montgomery, Powys, SY15 6RU

How much is Argae Hall House, Garthmyl, Montgomery, Powys, SY15 6RU worth?

Estimated value — November 2026

£355,000

Likely range £271,000 – £450,000Four in five similar homes sold within their range when we tested it.

Latest recorded sale November 1997

53%

confidence

Medium

Typically within 12% of the sale price

Property details

Detached house

Montgomery · SY15 6RU

156 m²1,679 sq ftFloor area
Pre-1900Built
Oil boilerHeating

Energy performance

Current ratingF22
PotentialF38

Oil · EPC 2188-8032-6212-5481-5084 · inspected February 2009

Address

District
Powys
County
Powys
See house prices in SY15 →

Value over time

  • Modelled value
  • Projected
  • Likely range (80%)
  • Today's estimate
£0£200k£400k£600k20002002200420062008201020122014201620182020202220242026£355,000

Drawn through each of this property's recorded sales and ending at today's estimate, with the UK House Price Index for its area and property type filling in the months between. 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 a recorded sale, and today it matches the likely range above.

View as a table
Modelled value at the end of each year, with any recorded sales
YearModelled valueLikely range
2000£48,974£41,853 – £56,999
2001£55,937£47,266 – £65,336
2002£72,806£60,868 – £85,806
2003£92,130£76,245 – £109,254
2004£114,556£94,096 – £135,996
2005£125,186£102,108 – £149,010
2006£137,698£111,325 – £164,612
2007£158,344£126,723 – £190,598
2008£137,239£108,943 – £165,920
2009£150,254£118,409 – £183,065
2010£159,783£125,845 – £195,623
2011£160,837£126,246 – £198,382
2012£162,734£127,526 – £202,226
2013£170,346£147,797 – £195,847
2014£177,291£152,364 – £205,482
2015£186,042£158,353 – £217,357
2016£202,180£170,425 – £238,093
2017£216,114£180,392 – £256,514
2018£233,189£192,726 – £278,951
2019£238,494£195,147 – £287,517
2020£268,392£217,402 – £326,059
2021£300,709£241,105 – £368,118
2022£339,873£269,709 – £419,225
2023£328,505£257,984 – £408,261
2024£337,532£262,295 – £422,621
2025£344,748£265,065 – £434,865
2026£355,000£271,000 – £450,000

Sale history

1997Sold
£33,000
2026Today — estimated
+976%£355,000

Mortgage calculator

£1,905

Estimated monthly repayment

£319,500

Loan amount

£366,410

Total interest

£685,910

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

About this property

Argae Hall House, Garthmyl, Montgomery, Powys, SY15 6RU is a detached house in Montgomery, Powys (SY15). Stede's estimated value for November 2026 is £355,000. Four in five similar homes sold within their likely range when tested; for this property that range is £271,000 to £450,000. It combines their price per m² applied to its floor area (50%), its own last sale brought up to date with the House Price Index (25%) and recent sales of 66 similar homes in the same postcode sector (25%). The confidence score is 53 out of 100 (medium): estimates like this one are typically within 12% of the eventual sale price.

It last sold in November 1997 for £33,000. The current estimate is 976% higher than that price. The current owner has held it for about 29 years.

Its EPC energy-efficiency rating is band F (22 out of 100). The certificate records a total floor area of 156 m² (1,679 sq ft). It was lodged in February 2009.

The modelled value is up 2% over the past year and up 18% over the past five years.

Among 5 nearby properties Stede tracks in the SY15 area, estimated values run from £236,000 to £596,000. This detached house's £355,000 sits toward the upper end of that range.

Common questions

How much is Argae Hall House, Garthmyl, Montgomery, Powys, SY15 6RU worth?

Stede estimates Argae Hall House, Garthmyl, Montgomery, Powys, SY15 6RU is worth £355,000 as of November 2026, within a likely range of £271,000 to £450,000. The estimate is generated automatically from recorded sale prices of this and similar nearby homes and the UK House Price Index, and is not a formal valuation.

When did Argae Hall House, Garthmyl, Montgomery, Powys, SY15 6RU last sell?

It last sold in November 1997 for £33,000.

What type of property is Argae Hall House, Garthmyl, Montgomery, Powys, SY15 6RU?

It is recorded as a Detached house in the SY15 postcode area.

What is the EPC rating of Argae Hall House, Garthmyl, Montgomery, Powys, SY15 6RU?

Argae Hall House, Garthmyl, Montgomery, Powys, SY15 6RU has an EPC energy-efficiency rating of band F (22 out of 100). The certificate records a floor area of 156 m² (1,679 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 53 out of 100 (medium). Tested against real sales of similar homes, estimates like this one are typically within 12% 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?

It combines their price per m² applied to its floor area (50%), its own last sale brought up to date with the House Price Index (25%) and recent sales of 66 similar homes in the same postcode sector (25%). Each piece of evidence gets the share that proved most accurate when tested against real sales of similar homes, and the same testing sets the likely range and confidence. Full detail is on the methodology page.

How we got this figure

We weighed the evidence below, giving each piece the share that proved most accurate when we tested it against real sales of similar homes. The likely range and confidence come from testing the same method against 7,653 real sales of similar homes.

  • Recent price per m² in the same postcode sector, for its 156 m²£451,36150%
  • Its sale in November 1997, brought up to today with the House Price Index£137,88425%
  • 66 similar homes sold recently in the same postcode sector£378,47025%

Estimate £355,000, likely £271,000 – £450,000

Read the full methodology and data sources →