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Get started25 Gypsy Lane is a five-bedroom detached house in Great Amwell, Ware, Ware (SG12 9RL). It has a recorded floor area of 210 m² (around 2260 sq ft), construction records dating it to 1950-1966 and council tax band F. The latest certificate (January 2026) shows a C (score 73). When first surveyed in March 2019 the rating was E, the property has climbed 2 bands since. Between certificates, wall efficiency went from Poor to Very Good and lighting went from Average to Very Good; while roof efficiency dropped from Good to Average and hot-water efficiency dropped from Average to Very Poor. This certificate was lodged in the last six months, so the rating reflects current condition.
At 210 m² the property is well over the postcode median (131 m² across 8 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £1,157,000 sits 53.8% above the 2019 sale of £752,500. On a £-per-square-foot basis, the last sale (£333/sq ft) was about 24.7% below the postcode norm. 3 planning records sit against the property, 2 approved, 1 refused. Past consents include an extension and a loft conversion, meaningful when judging how the property has evolved. Sold June 2019 for £752,500.
The EPC has just been inspected, so the rating reflects current condition.
A recent planning application at 25 Gypsy Lane was refused — worth checking the council file.
Extension: Single storey
Increased roof height to create first floor accommodation with 3 rear dormers and 2 front velux roof windows, new front entrance extension, partial garage conversion, alterations to fenestration, new external white render and removal of lean-to building housing a tank room.
25 Gypsy Lane valuation sits well clear of the typical sold price in this postcode.
£1,157,000
Modelled from EPC, postcode comparables.
£752,500
Recorded with HM Land Registry.
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Detailed AI analysis
On price per m², 25 Gypsy Lane runs well behind the street norm.
Price per m²
£3,583
Street avg £4,825
Floor Area
210 m²
Street avg 160 m²
Habitable Rooms
7 rooms
Street avg 5 rooms
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.3 km
Amwell Roundabout — bus stop.

Daytime· 07:00 – 23:00
59.1dB

Changes detected from historical EPC data
Hot water system changed
Cavity wall insulation installed
Loft insulation upgraded to recommended levels
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
A non-material amendment to 3/20/2461/HH - The revised proposed scheme has reduced the mass of the roof, kept the existing courtyard as insitu and the dormer windows have been kept exactly as indicated on the approved scheme but relocated slightly to suit the revised roof size - which in turn has evidently improved the neighbours amenity.
1 more application for this property
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7 June 2019Most recent
£752,500
Median price across the last 5 sales in SG12 9RL: £620,000 (2024–2015).
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CO₂ Emissions
3.8 t/year
Street avg 4.6 t/year
SG12 9LA
Closest school
0.6 km
St John the Baptist Voluntary Aided Church of England Primary School. 13 schools nearby.
Night-time· 23:00 – 07:00
51.8dB