4 Old Leys
AL10 8LR
- Detached
- 3 bedrooms (estimate)
- 1,163 sq ft
- EPC D
What comparable sales show
Fair match£488,000
Range £405,000 to £570,000 · £419 per sq ft
Rank in AL10 8LR
4th of 4
Postcode average £551,250
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
4 Old Leys is a 3 bedroom detached in AL10 of about 1,163 sq ft.
Comparable completed sales nearby put it at £405,000 to £570,000, about £488,000 in the middle.
That makes it the 4th highest of the 4 homes we can compare in AL10 8LR, where the middle figure averages £551,250.
Across Welwyn Hatfield, average prices rose 0.7% 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
£405,000
Middle
£488,000
Upper end
£570,000
Done work since the records were made? Claim your home and tell us, or ask local agents where yours sits.
On the map
Where 4 Old Leys is
4 Old Leys on the map
This home and the completed sales its figure is worked out from. Choose a pin for the address, size and date.
The Land Registry records a sale by its postcode, so pins sit at the postcode, close to the home, not on its doorstep. Map: contains OS data © Crown copyright and database rights 2026.
Energy
How efficient the home is
Energy performance certificate
From the official register for 4 Old Leys, lodged 1 June 2026.
Rating now
D67 points
Could reach
C77 points
10 points higher with the improvements below
- Built
- 1983–1990
- Solar panels
- None recorded
What the assessor found
Each part of the home, with the certificate's own energy efficiency rating.
Walls
Cavity wall, filled cavity
GoodRoof
Pitched, 100 mm loft insulation
AverageFloor
Solid, no insulation (assumed)
Not rated on the certificate
Windows
Fully double glazed
PoorHeating
Boiler and radiators, mains gas
GoodHeating controls
Room thermostat and TRVs
AverageHot water
From main system
GoodLighting
Good lighting efficiency
GoodSecond heating
Room heaters, electric
Not rated on the certificate
Estimated running costs
A year, now and after the recommended improvements.
£299 a year less after the improvements
Heating
Hot water
Lighting
The assessor's estimates at the energy prices in use when the certificate was made (2026), for a typical household. Today's bills will differ.
Improvements the certificate recommends
In the certificate's order. Each rating assumes the steps before it are done.
- 1
Increase loft insulation to 270 mm
Typical cost £900–£1,200 · saves about £54 a year
Rating after68D - 2
Floor insulation (solid floor)
Typical cost £5,000–£10,000 · saves about £121 a year
Rating after71C - 3
Replace boiler with new condensing boiler
Typical cost £2,200–£3,500 · saves about £124 a year
Rating after73C - 4
Solar photovoltaic panels, 2.5 kWp
Typical cost £8,000–£10,000 · saves about £239 a year
Rating after77C
Costs and savings are the certificate's own, as estimated when it was made.
History
What it has sold for
Sale history
Every sale of this home registered with HM Land Registry since 1995
No sale of this home has been registered since 1995.
Nearby
Neighbours and the sales behind the figure
Homes in AL10 8LR
Ranked by what comparable sales show. Choose one to see its page.
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 |
|---|---|---|---|---|---|
| 5 Old LeysAL10 8LR · Detached | £490,000 | Aug 2026 | 1,173 sq ft | £418 | < 0.1 mi |
| 7 Winterberry PlaceAL10 8FY · Detached | £510,000 | Feb 2025 | 1,066 sq ft | £479 | 0.1 mi |
| 4 Winterberry PlaceAL10 8FY · Detached | £542,016 | Mar 2025 | 1,023 sq ft | £530 | 0.1 mi |
| 6 Winterberry PlaceAL10 8FY · Detached | £550,000 | Dec 2024 | 1,023 sq ft | £538 | 0.1 mi |
| 1 Winterberry PlaceAL10 8FY · Detached | £435,000 | Feb 2025 | 947 sq ft | £459 | 0.1 mi |
| 23 Lark RiseAL10 8RN · Detached | £487,000 | Nov 2025 | 1,464 sq ft | £333 | 0.5 mi |
| 8 Sycamore AvenueAL10 8LZ · Detached | £740,000 | Mar 2026 | 1,324 sq ft | £559 | 0.7 mi |
| 41 Chantry LaneAL10 9HW · Detached | £550,000 | May 2026 | 1,066 sq ft | £516 | 0.9 mi |
| 7 Lark RiseAL10 8QZ · Detached | £595,000 | Jun 2025 | 1,647 sq ft | £361 | 0.5 mi |
| 4 HilburyAL10 9HG · Detached | £445,000 | Dec 2025 | 1,076 sq ft | £413 | 0.9 mi |
| 24 Falcon CloseAL10 8QY · Detached | £335,000 | Mar 2025 | 872 sq ft | £384 | 0.5 mi |
| 22 Roe Green CloseAL10 9PE · Detached | £425,000 | Dec 2025 | 1,130 sq ft | £376 | 1 mi |
The area
AL10 at a glance
What buyers have paid in AL10
Completed sales in the last 12 months, against the 12 months before
Flats
Terraced
Semi-detached
Detached
| Type | Sales | Average price | Average size | Per sq ft | On the year |
|---|---|---|---|---|---|
| All homes | 243 | £416,151 | 926 sq ft | £493 | −9.9% |
| Flats | 53 | £363,580 | 595 sq ft | £710 | +57.2% |
| Terraced | 117 | £370,445 | 881 sq ft | £434 | −0.7% |
| Semi-detached | 39 | £481,392 | 1,083 sq ft | £473 | +1.3% |
| Detached | 22 | £602,886 | 1,405 sq ft | £445 | −3.4% |
Find another home
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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 May 2026.
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