39 Blackdown Close
SG1 6AY
- Detached
- Freehold
- 4 bedrooms (estimate)
- 1,335 sq ft
- EPC C
What comparable sales show
Strong match£525,000
Range £462,000 to £588,000 · £393 per sq ft
Since last sale
+£75,000
+16.7% since Jun 2021, +2.9% a year
Rank in SG1 6AY
5th of 23
Postcode average £465,913
From completed sales of similar homes nearby, adjusted for floor area. It cannot see condition, layout or recent work, so it is not a valuation.
In short
39 Blackdown Close is a 4 bedroom freehold detached in SG1 of about 1,335 sq ft.
Comparable completed sales nearby put it at £462,000 to £588,000, about £525,000 in the middle.
That makes it the 5th highest of the 23 homes we can compare in SG1 6AY, where the middle figure averages £465,913.
It last sold for £450,000 in June 2021; comparable sales suggest it has gained about £75,000 since, roughly +2.9% a year.
Across North Hertfordshire, average prices rose 3.1% in the year to August 2026.
Where in the range would yours sell?
Condition and improvements usually decide it, and only someone who sees the home can say.
Lower end
£462,000
Middle
£525,000
Upper end
£588,000
Done work since the records were made? Claim your home and tell us, or ask local agents where yours sits.
Sale history
Every sale of this home registered with HM Land Registry since 1995
| Sold | Price paid | Change | A year |
|---|---|---|---|
| June 2021 | £450,000 | +228.5% | +5.9% |
| September 2000 | £137,000 | First sale | – |
Homes in SG1 6AY
Ranked by what comparable sales show. Choose one to see its page.
- 37 Blackdown CloseTerracedSold Nov 2000 for £158k£618,000#1
- 19 Blackdown CloseSemi-detachedSold Oct 2001 for £176k£602,000#2
- 25 Blackdown CloseSemi-detachedSold Aug 2000 for £157k£592,000#3
- 35 Blackdown CloseSemi-detachedSold Sept 2000 for £156k£573,000#4
- 39 Blackdown Close (this home)Detached · 4 bed · 1,335 sq ftSold Jun 2021 for £450k£525,000#5
- 23 Blackdown CloseSemi-detachedSold Apr 2008 for £273k£507,000#6
- 1 Blackdown CloseSemi-detachedSold Feb 2001 for £133k£501,000#7
- 43 Blackdown CloseSemi-detachedSold Jul 2006 for £242k£498,000#8
- 47 Blackdown CloseTerracedSold Jun 2017 for £400k£478,000#9
- 41 Blackdown CloseSemi-detached · 4 bed · 1,238 sq ftSold Feb 2026 for £500k£476,000#10
- 21 Blackdown CloseSemi-detachedSold Jul 2021 for £435k£471,000#11
- 3 Blackdown CloseSemi-detachedSold Aug 2002 for £169k£467,000#12
- 45 Blackdown CloseTerracedSold Jul 2020 for £380k£459,000#13
- 17 Blackdown CloseTerracedSold Jul 2019 for £368k£442,000#14
- 31 Blackdown CloseSemi-detachedSold Aug 2000 for £114k£428,000#15
- 29 Blackdown CloseTerracedSold Sept 2005 for £201k£423,000#16
- 7 Blackdown CloseTerracedSold Jan 2003 for £160k£417,000#17
- 27 Blackdown CloseSemi-detachedSold Mar 2018 for £351k£409,000#18
- 11 Blackdown CloseTerracedSold Mar 2000 for £92k£394,000#19
- 5 Blackdown CloseSemi-detachedSold Jul 2006 for £190k£391,000#20
- 33 Blackdown CloseSemi-detachedSold Feb 2010 for £190k£383,000#21
- 9 Blackdown CloseTerracedSold Jun 2017 for £288k£344,000#22
- 15 Blackdown CloseTerracedSold Jan 2021 for £274k£318,000#23
The completed sales behind the figure
Similar homes nearby, registered with HM Land Registry. Choose one to see its page.
| Home | Price | Sold | Size | Per sq ft | Away |
|---|---|---|---|---|---|
| 54 Ryders HillSG1 6BJ · Detached | £500,000 | May 2026 | 1,270 sq ft | £394 | 0.3 mi |
| 63 GrasmereSG1 6AU · Detached | £555,000 | May 2026 | 1,206 sq ft | £460 | 0.3 mi |
| 40 Ryders HillSG1 6BJ · Detached | £565,000 | Jul 2025 | 1,475 sq ft | £383 | 0.3 mi |
| 20 Haybluff DriveSG1 6HA · Detached | £525,000 | Jul 2025 | 1,378 sq ft | £381 | 0.4 mi |
| 83 Great Ashby WaySG1 6DT · Detached | £660,000 | Aug 2025 | 1,819 sq ft | £363 | 0.1 mi |
| 46 Ryders HillSG1 6BJ · Detached | £560,000 | May 2025 | 1,195 sq ft | £469 | 0.3 mi |
| 40 Benbroke PlaceSG1 6GR · Detached | £665,000 | Sept 2025 | 1,690 sq ft | £394 | 0.2 mi |
| 154 Cleveland WaySG1 6BY · Detached | £430,000 | Feb 2025 | 1,206 sq ft | £357 | 0.3 mi |
| 51 Ryders HillSG1 6BL · Detached | £580,000 | May 2026 | 1,851 sq ft | £313 | 0.3 mi |
| 2 Mount KeenSG1 6BP · Detached | £590,000 | Mar 2026 | 1,787 sq ft | £330 | 0.3 mi |
| 35 Ryders HillSG1 6BN · Detached | £618,000 | May 2026 | 1,981 sq ft | £312 | 0.3 mi |
| 14 Mount KeenSG1 6BP · Detached | £585,000 | Jul 2025 | 1,647 sq ft | £355 | 0.3 mi |
What buyers have paid in SG1
Completed sales in the last 12 months, against the 12 months before
| Type | Sales | Average price | Average size | Per sq ft | On the year |
|---|---|---|---|---|---|
| All homes | 333 | £366,350 | 961 sq ft | £378 | −2.5% |
| Flats | 66 | £201,207 | 614 sq ft | £327 | +9.1% |
| Terraced | 156 | £340,116 | 941 sq ft | £378 | −1.6% |
| Semi-detached | 62 | £451,748 | 1,071 sq ft | £425 | +4.2% |
| Detached | 40 | £597,368 | 1,477 sq ft | £414 | −2.4% |
Contains HM Land Registry data © Crown copyright and database right 2026. Licensed under the Open Government Licence v3.0.
Energy performance data © Crown copyright. Licensed under the Open Government Licence v3.0.
Floor area and energy rating from the energy certificate of September 2016.
This page is built from public records. Is this your home? Claim it with your email and mobile to correct its details and add what has changed; your name and contact details are never shown. Something wrong? Contact us.