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Get started23 Grass Slade is a three-bedroom detached house in Brixworth, Northampton, Northampton (NN6 9HZ). It has a recorded floor area of 108 m² (around 1163 sq ft), construction records dating it to 1976-1982 and council tax band D. The latest certificate (September 2017) shows a D (score 66), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 80). Records show the property has been extended at some point in its history.
Sale prices here have outpaced England HPI: 4.5% per year against 0% for the wider region. Today's modelled estimate of £371,000 is 17.4% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£272/sq ft) was about 38.8% above the typical sold price in the postcode. One planning record on file: an extension approved in 2022. Past consents include an extension, meaningful when judging how the property has evolved. At 108 m² it's 25.6% larger than the typical home in the postcode (86 m² median across 19 EPCs). Last sale on file: £316,000 in August 2021. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Extension: Single storey · Rear of property
Construction of single storey rear extension and detached garage
Latest sale on 23 Grass Slade was the highest on Land Registry record across the postcode.
£371,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.5% per year over 20 years.
£316,000
Growth on file: 4.5% per year over 20 years.
Floor Area for 23 Grass Slade runs comfortably ahead of the street norm.
Price per m²
£2,926
Street avg £2,844
Floor Area
108 m²
Street avg 91 m²
Habitable Rooms
5 rooms
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
BT Exchange — bus stop.

Daytime· 07:00 – 23:00
51.2dB

26 August 2021Most recent
£316,000
+40.4%over 3 years5 January 2018
£225,000
+75.8%over 16 years30 March 2001
£128,000
Median price across the last 5 sales in NN6 9HZ: £300,000 (2025–2021).
Street avg 5 rooms
CO₂ Emissions
4.5 t/year
Street avg 4.2 t/year
NN6 9BD
Closest school
0.7 km
Brixworth CofE VC Primary School. 2 schools nearby.
Night-time· 23:00 – 07:00
41.0dB
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