How much is 21 Abernethy Square, Maritime Quarter, Swansea, SA1 1UH worth?
Estimated value — November 2026
£189,000
Likely range £131,000 – £256,000Four in five similar homes sold within their range when we tested it.
Latest recorded sale July 1999
36%
confidence
Low
Typically within 16% of the sale price
Property details
Flat / Maisonette
Abernethy Square · Swansea · SA1 1UH
Energy performance
Mains Gas (Not Community) · EPC 0320-2287-4430-2224-0025 · inspected July 2024
Address
- District
- Swansea
- County
- Swansea
Value over time
- Modelled value
- Projected
- Likely range (80%)
- Today's estimate
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
| Year | Modelled value | Likely range |
|---|---|---|
| 2000 | £82,653 | £71,435 – £98,475 |
| 2001 | £88,838 | £75,877 – £104,158 |
| 2002 | £107,290 | £90,310 – £126,265 |
| 2003 | £140,187 | £116,301 – £166,389 |
| 2004 | £171,970 | £140,680 – £206,335 |
| 2005 | £193,142 | £156,007 – £233,364 |
| 2006 | £200,074 | £159,870 – £242,819 |
| 2007 | £217,430 | £171,801 – £265,451 |
| 2008 | £204,212 | £159,272 – £251,311 |
| 2009 | £173,771 | £133,778 – £215,637 |
| 2010 | £161,754 | £123,079 – £202,380 |
| 2011 | £158,544 | £119,642 – £200,134 |
| 2012 | £153,370 | £115,118 – £195,177 |
| 2013 | £155,339 | £115,853 – £199,608 |
| 2014 | £153,873 | £114,136 – £199,186 |
| 2015 | £156,356 | £127,271 – £189,954 |
| 2016 | £161,686 | £129,778 – £198,545 |
| 2017 | £165,117 | £130,661 – £204,920 |
| 2018 | £164,361 | £128,200 – £206,133 |
| 2019 | £165,868 | £127,496 – £210,194 |
| 2020 | £170,338 | £129,002 – £218,088 |
| 2021 | £192,160 | £143,351 – £248,543 |
| 2022 | £195,057 | £143,302 – £254,843 |
| 2023 | £190,616 | £137,880 – £251,536 |
| 2024 | £188,501 | £134,214 – £251,212 |
| 2025 | £193,981 | £135,918 – £261,054 |
| 2026 | £189,000 | £131,000 – £256,000 |
Sale history
Mortgage calculator
£1,014
Estimated monthly repayment
£170,100
Loan amount
£195,075
Total interest
£365,175
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
- 8 Abernethy Square, Maritime Quarter, Swansea, SA1 1UH£63,000 · 2026£171,000
- 11 Abernethy Square, Maritime Quarter, Swansea, SA1 1UH£153,000 · 2020£187,000
- 6 Abernethy Square, Maritime Quarter, Swansea, SA1 1UH£81,000 · 2001£183,000
- 7 Abernethy Square, Maritime Quarter, Swansea, SA1 1UH£133,000 · 2021£151,000
- 17 Abernethy Square, Maritime Quarter, Swansea, SA1 1UH£130,000 · 2017£157,000
- 10 Abernethy Square, Maritime Quarter, Swansea, SA1 1UH£73,500 · 1998£224,000
- 9 Abernethy Square, Maritime Quarter, Swansea, SA1 1UH£54,000 · 1997£168,000
- 14 Abernethy Square, Maritime Quarter, Swansea, SA1 1UH£106,000 · 2024£110,000
- 18 Abernethy Square, Maritime Quarter, Swansea, SA1 1UH£117,000 · 2021£124,000
- 12 Abernethy Square, Maritime Quarter, Swansea, SA1 1UH£94,000 · 2015£126,000
About this property
21 Abernethy Square, Maritime Quarter, Swansea, SA1 1UH is a flat on Abernethy Square in Swansea. Stede's estimated value for November 2026 is £189,000. Four in five similar homes sold within their likely range when tested; for this property that range is £131,000 to £256,000. 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 77 similar homes in the same postcode sector (25%). The confidence score is 36 out of 100 (low): estimates like this one are typically within 16% of the eventual sale price.
It last sold in July 1999 for £75,500. It has 2 sales on record, the earliest in 1998. The current estimate is 150% higher than that price. The current owner has held it for about 27 years.
Its EPC energy-efficiency rating is band C (78 out of 100). The certificate records a total floor area of 66 m² (710 sq ft). It was lodged in July 2024.
The modelled value is down 4% over the past year and down 1% over the past five years.
Among 10 nearby properties Stede tracks in the SA1 area, estimated values run from £110,000 to £224,000. This flat's £189,000 sits toward the upper end of that range.
Common questions
How much is 21 Abernethy Square, Maritime Quarter, Swansea, SA1 1UH worth?
Stede estimates 21 Abernethy Square, Maritime Quarter, Swansea, SA1 1UH is worth £189,000 as of November 2026, within a likely range of £131,000 to £256,000. 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 21 Abernethy Square, Maritime Quarter, Swansea, SA1 1UH last sell?
It last sold in July 1999 for £75,500. There are 2 sales on record, the earliest in 1998.
What type of property is 21 Abernethy Square, Maritime Quarter, Swansea, SA1 1UH?
It is recorded as a Flat / Maisonette on Abernethy Square in the SA1 postcode area.
What is the EPC rating of 21 Abernethy Square, Maritime Quarter, Swansea, SA1 1UH?
21 Abernethy Square, Maritime Quarter, Swansea, SA1 1UH has an EPC energy-efficiency rating of band C (78 out of 100). The certificate records a floor area of 66 m² (710 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 36 out of 100 (low). Tested against real sales of similar homes, estimates like this one are typically within 16% 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 77 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 3,071 real sales of similar homes.
- Recent price per m² in the same postcode sector, for its 66 m²£178,87850%
- Its sale in July 1999, brought up to today with the House Price Index£244,54425%
- 77 similar homes sold recently in the same postcode sector£154,69425%
Estimate £189,000, likely £131,000 – £256,000
Read the full methodology and data sources →