4 Pound Green is a four-bedroom detached house in Guilden Morden, Royston, Royston (SG8 0JZ). It has a recorded floor area of 145 m² (around 1561 sq ft), construction records dating it to 1950-1966 and council tax band F. The latest certificate (January 2023) shows a D (score 61), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since August 2011. Between certificates, roof efficiency went from Average to Good and lighting went from Average to Very Good; while wall efficiency dropped from Good to Average. The recommended improvements would push it to C (score 70). Main heating runs on oil. Other recorded features include a conservatory.
Sale prices here have outpaced England HPI: 5.2% per year against 0% for the wider region. Today's modelled estimate of £740,000 is 10.9% above the 2023 sale price. On a £-per-square-foot basis, the last sale (£428/sq ft) was about 44.7% above the typical sold price in the postcode. At 145 m² the property is well over the postcode median (111 m² across 19 EPCs), placing it in the larger end of the local stock. 3 planning records sit against the property, 1 approved, 1 refused. Past consents include an extension, meaningful when judging how the property has evolved. Sold September 2023 for £667,500.
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Already flagged here
Launch offer · save £5
4 Pound Green has 2 separate extension applications on the council record.
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Sale price has grown by over 3x since 1997.
£740,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.2% per year over 26 years.
£667,500
Growth on file: 5.2% per year over 26 years.
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
4 Pound Green outperforms the street on price per m² by a wide margin.
Price per m²
£4,603
Street avg £3,187
Floor Area
145 m²
Street avg 130 m²
Habitable Rooms
7 rooms
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
3/mo
Steady year-on-year across the wider district.
Closest school
0.1 km

Daytime· 07:00 – 23:00
43.3dB

Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Changes detected from historical EPC data
Loft insulation upgraded to recommended levels
More low energy lighting installed
Plum - Reduce height by 2 - 2.5m down to previous reduction points and reduce spread by up to 1.5.m to shape round Cypress - Fell
Extension: Side of property
Single storey side extension
15 September 2023Most recent
£667,500
+43.5%over 7 years9 October 2015
£465,000
+16.3%over 8 years20 October 2006
£400,000
+122.2%over 9 years30 September 1997
£180,000
Median price across the last 5 sales in SG8 0JZ: £460,000 (2024–2022).
1 Worboys Court Pound Green Guilden Morden Royston
Sold Dec 2024
25 Pound Green Guilden Morden Royston
Sold Nov 2022
Meadow View Pound Green Guilden Morden Royston
Sold Aug 2022
35 Pound Green Guilden Morden Royston
Sold Jan 2022
27 Pound Green Guilden Morden Royston
Sold Feb 2021

Street avg 6 rooms
CO₂ Emissions
5.8 t/year
Street avg 5.8 t/year
SG8 0JX
Guilden Morden CofE Primary Academy. 2 schools nearby.
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The full report breaks down crime, transport links, schools and air quality in depth.
Night-time· 23:00 – 07:00
35.9dB