90 Blackdown Close
SG1 6AX
- Detached
- Freehold
What the sales records show
From an older sale: a rough guide£523,000
Range £445,000 to £601,000
Since last sale
+£279,000
+114.3% since Sept 2005, +3.7% a year
Rank in SG1 6AX
5th of 45
Postcode average £403,978
There is no floor area on record, so this is the home's last sale moved from September 2005 to August 2026 by the official UK House Price Index for North Hertfordshire, with the range widened the older the sale. It cannot see condition, layout or recent work, so it is not a valuation.
In short
90 Blackdown Close is a freehold detached in SG1.
There is no floor area on record, so its last sale has been moved to today by the official price index for North Hertfordshire: £445,000 to £601,000, about £523,000 in the middle.
That makes it the 5th highest of the 45 homes we can compare in SG1 6AX, where the middle figure averages £403,978.
It last sold for £244,000 in September 2005; the price index suggests it has gained about £279,000 since, roughly +3.7% 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
£445,000
Middle
£523,000
Upper end
£601,000
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 |
|---|---|---|---|
| September 2005 | £244,000 | +59.5% | +10.0% |
| October 2000 | £153,000 | First sale | – |
Homes in SG1 6AX
Ranked by what comparable sales show. Choose one to see its page.
- 32 Blackdown CloseSemi-detachedSold Nov 2002 for £192k£551,000#1
- 58 Blackdown CloseSemi-detachedSold Apr 2001 for £140k£527,000#2
- 30 Blackdown CloseTerracedSold Jan 2001 for £131k£525,000#3
- 56 Blackdown CloseSemi-detachedSold Apr 2001 for £139k£523,000#4
- 90 Blackdown Close (this home)DetachedSold Sept 2005 for £244k£523,000#5
- 22 Blackdown CloseSemi-detachedSold Sept 2000 for £131k£510,000#6
- 28 Blackdown CloseSemi-detachedSold Jan 2001 for £131k£507,000#7
- 18 Blackdown CloseSemi-detachedSold Sept 2023 for £460k£500,000#8
- 48 Blackdown CloseSemi-detachedSold May 2001 for £132k£488,000#9
- 86 Blackdown CloseSemi-detachedSold Dec 2005 for £208k£463,000#10
- 2 Blackdown CloseTerracedSold May 2007 for £235k£452,000#11
- 20 Blackdown CloseSemi-detachedSold Jul 2017 for £360k£452,000#12
- 46 Blackdown CloseTerracedSold May 2006 for £214k£451,000#13
- 88 Blackdown CloseSemi-detached · 4 bed · 1,076 sq ftSold May 2026 for £510k£451,000#14
- 8 Blackdown CloseSemi-detachedSold Oct 2000 for £114k£446,000#15
- 44 Blackdown CloseSemi-detachedSold Sept 2016 for £348k£446,000#16
- 26 Blackdown Close Great Ashby StevenageSemi-detachedSold Apr 2021 for £365k£431,000#17
- 4 Blackdown CloseTerracedSold Aug 2006 for £210k£421,000#18
- 52 Blackdown CloseSemi-detachedSold Jun 2020 for £335k£413,000#19
- 50 Blackdown CloseSemi-detached · 3 bed · 818 sq ftSold May 2026 for £435k£398,000#20
- 66 Blackdown CloseTerracedSold Jun 2001 for £106k£396,000#21
- 84 Blackdown CloseSemi-detachedSold Mar 2025 for £385k£396,000#22
- 6 Blackdown CloseTerracedSold Jul 2007 for £200k£383,000#23
- 42 Blackdown CloseTerracedSold Mar 2006 for £178k£383,000#24
- 10 Blackdown CloseTerracedSold Aug 2021 for £330k£382,000#25
- 12 Blackdown CloseTerracedSold Sept 2004 for £167k£381,000#26
- 34 Blackdown CloseSemi-detachedSold Sept 2023 for £345k£375,000#27
- 54 Blackdown CloseTerracedSold Aug 2018 for £305k£371,000#28
- 60 Blackdown CloseTerracedSold May 2024 for £330k£363,000#29
- 24 Blackdown CloseSemi-detachedSold Jun 2016 for £270k£355,000#30
- 74 Blackdown CloseTerracedSold Nov 2016 for £275k£350,000#31
- 82 Blackdown CloseTerracedSold Feb 2020 for £283k£346,000#32
- 16 Blackdown CloseTerracedSold Apr 2018 for £285k£343,000#33
- 78 Blackdown CloseSemi-detachedSold Apr 2006 for £158k£343,000#34
- 70 Blackdown CloseSemi-detachedSold Jul 2010 for £176k£342,000#35
- 38 Blackdown CloseTerracedSold Mar 2020 for £270k£338,000#36
- 72 Blackdown CloseTerracedSold Sept 2010 for £176k£338,000#37
- 68 Blackdown CloseTerracedSold Mar 2015 for £213k£336,000#38
- 14 Blackdown CloseTerracedSold Apr 2021 for £285k£334,000#39
- 80 Blackdown CloseTerracedSold Dec 2019 for £267k£332,000#40
- 36 Blackdown CloseTerracedSold Mar 2006 for £154k£331,000#41
- 62 Blackdown CloseTerracedSold Apr 2016 for £245k£331,000#42
- 40 Blackdown CloseTerracedSold Feb 2010 for £157k£310,000#43
- 76 Blackdown CloseTerracedSold Aug 2010 for £145k£280,000#44
- 64 Blackdown CloseTerracedSold Jul 2019 for £210k£262,000#45
Recent sales of detached homes nearby
The closest sales of the same type in the last two years, registered with HM Land Registry. Choose one to see its page.
| Home | Price | Sold | Size | Per sq ft | Away |
|---|---|---|---|---|---|
| 99 Great Ashby WaySG1 6DT · Detached | £600,000 | May 2026 | – | – | 0.1 mi |
| 83 Great Ashby WaySG1 6DT · Detached | £660,000 | Aug 2025 | 1,819 sq ft | £363 | 0.1 mi |
| 39 Grampian PlaceSG1 6DR · Detached | £395,000 | Dec 2024 | 883 sq ft | £448 | 0.1 mi |
| 16 The BeaconsSG1 6EA · Detached | £437,500 | Nov 2025 | – | – | 0.1 mi |
| 163 Cleveland WaySG1 6BU · Detached | £765,000 | Dec 2025 | 2,120 sq ft | £361 | 0.2 mi |
| 34 Mendip WaySG1 6GE · Detached | £565,000 | Dec 2024 | 1,873 sq ft | £302 | 0.2 mi |
| 207 Cleveland WaySG1 6BX · Detached | £695,000 | Mar 2025 | 1,830 sq ft | £380 | 0.3 mi |
| 35 Ryders HillSG1 6BN · Detached | £618,000 | May 2026 | 1,981 sq ft | £312 | 0.3 mi |
| 16 Great GablesSG1 6GL · Detached | £555,000 | Jun 2026 | – | – | 0.3 mi |
| 40 Benbroke PlaceSG1 6GR · Detached | £665,000 | Sept 2025 | 1,690 sq ft | £394 | 0.3 mi |
| 154 Cleveland WaySG1 6BY · Detached | £430,000 | Feb 2025 | 1,206 sq ft | £357 | 0.3 mi |
| 186 Cleveland WaySG1 6BY · Detached | £575,000 | Jan 2025 | 1,884 sq ft | £305 | 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 | 325 | £364,400 | 956 sq ft | £378 | −3.2% |
| Flats | 64 | £202,666 | 613 sq ft | £330 | +10.4% |
| Terraced | 154 | £337,909 | 941 sq ft | £375 | −2.4% |
| Semi-detached | 60 | £448,165 | 1,055 sq ft | £426 | +2.1% |
| Detached | 38 | £599,413 | 1,476 sq ft | £418 | −1.9% |
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.
Contains HM Land Registry UK House Price Index data © Crown copyright. Licensed under the Open Government Licence v3.0.
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