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Get started3 Grebe Island is a detached house in Horning, Norwich, Norwich (NR12 8PF). It has a recorded floor area of 18 m² (around 191 sq ft), construction records dating it to 1950-1966 and council tax band A. The latest certificate (August 2011) shows an E (score 43), well below the UK norm with real room to improve. When first surveyed in August 2011 the rating was G, the property has climbed 2 bands since. Between certificates, lighting went from Good to Very Good and main heating went from Very Poor to Poor; while window efficiency dropped from Good to Average. Main heating runs on electricity. The latest certificate is from August 2011, so improvements made since then won't be reflected.
At 18 m² it sits well below the postcode median (95 m² across 35 EPCs), making it one of the more compact homes locally. Today's modelled estimate of £716,000 is 12.3% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£3,337/sq ft) was about 1258.3% above the typical sold price in the postcode. 4 planning records sit against the property, 3 approved, 1 refused. Sold March 2021 for £637,500. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
3 Grebe Island's EPC is over a decade old — improvements since won't be reflected.
This certificate is over 10 years old and is no longer valid.Expired 19 Aug 2021
Replacement quayheading.
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£716,000
Modelled from EPC, postcode comparables.
£637,500
Recorded with HM Land Registry.
3 Grebe Island outperforms the street on price per m² by a wide margin.
Price per m²
£35,915
Street avg £3,568
Floor Area
18 m²
Street avg 118 m²
Habitable Rooms
1 rooms
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
2/mo
Steady year-on-year across the wider district.
Closest school
0.7 km

Daytime· 07:00 – 23:00
43.6dB

Changes detected from historical EPC data
Heating system changed
Changed to a more efficient fuel source
Heating controls changed
Hot water system changed
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
Details of: Conditions 3 - Materials, 4 - Biodiversity Enhancements, 5 - Flood resilience measures, 6 - Replacement planting, 7 - Void details of permission BA/2017/0171/FUL.
2 more applications for this property
Join to see all planning history.
1 March 2021Most recent
£637,500
Median price across the last 5 sales in NR12 8PF: £400,000 (2025–2023).
Street avg 5 rooms
CO₂ Emissions
3.0 t/year
Street avg 5.3 t/year
NR12 8AY
Horning Community Primary School. 1 school nearby.
Flood risk
High
From the Environment Agency.
Night-time· 23:00 – 07:00
36.6dB
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