12 Coniston Avenue, Northampton, NN3 2AG
About 12 Coniston Avenue
12 Coniston Avenue is a three-bedroom semi-detached house in Northampton (NN3 2AG). It has a recorded floor area of 94 m² (around 1012 sq ft), construction records dating it to 1983-1990 and council tax band C. The latest certificate (August 2016) shows a D (score 63), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 85), a 2-band jump. Other recorded features include a conservatory.
A recent sale: £275,000 in October 2025. Across the public record there are 4 sales, relatively high churn for a single property. Across 2001–2025, sale prices on this property compounded at 4.9% per year. On a £-per-square-foot basis, the last sale (£272/sq ft) was about 44.1% above the typical sold price in the postcode.
What this property has
Inside
- Bedrooms3
- Bathrooms1
- Dining roomYes
- ConservatoryYes
Outside
- Private gardenRear
- GarageYes
Building
- Heating systemGas
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
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Planning history
12 Coniston Avenue has no planning applications on record.
But the area is active
22 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
Latest sale on 12 Coniston Avenue was the highest on Land Registry record across the postcode.
£267,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.9% per year over 24 years.
£275,000
Growth on file: 4.9% per year over 24 years.
Sales timeline
5 October 2025Most recent
£275,000
+29.1%over 9 years25 September 2016
£213,000
+20.3%over 9 years2 March 2007
£177,000
+105.8%over 5 years15 July 2001
£85,995
Median price across the last 5 sales in NN3 2AG: £225,000 (2021–2018).
Nearby sales in NN3 2AG
1 Coniston Avenue, Northampton, NN3 2AG
Sold Mar 2021
£236,0006 Coniston Avenue, Northampton, NN3 2AG
Sold Dec 2019
£225,0002 Coniston Avenue, Northampton, NN3 2AG
Sold Oct 2019
£235,00022 Coniston Avenue, Northampton, NN3 2AG
Sold Dec 2018
£217,50018 Coniston Avenue, Northampton, NN3 2AG
Sold Aug 2018
£250,000
Versus other Coniston Avenue homes
Price per m² for 12 Coniston Avenue runs comfortably ahead of the street norm.
Price per m²
£2,926
Street avg £2,031
Floor Area
94 m²
Street avg 86 m²
Habitable Rooms
5 rooms
Street avg 4 rooms
CO₂ Emissions
4.3 t/year
Street avg 3.5 t/year
Similar properties nearby
The neighbourhood at a glance
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.3 km
Highlands Avenue — bus stop.
Closest school
0.3 km
Eastfield Academy. 36 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
49.7dB

Night-time· 23:00 – 07:00
39.4dB







