3a, Main Road, Duston, Northampton, NN5 6JB
About 3a
3a is a three-bedroom detached house in Duston, Northampton, Northampton (NN5 6JB). It has a recorded floor area of 132 m² (around 1421 sq ft), construction records dating it to 1967-1975 and council tax band E. The latest certificate (March 2016) shows a D (score 55), a step below the typical UK home. The recommended improvements would lift it to B (score 83), a 2-band jump. The latest certificate is from March 2016, so improvements made since then won't be reflected. Other recorded features include attached land beyond the plot. Our model identifies extension potential, subject to local planning policy.
3 planning records sit against the property, 3 approved, 0 refused. Past consents include an extension and a porch, meaningful when judging how the property has evolved. Today's modelled estimate of £529,000 is 19.4% above the 2016 sale price. On a £-per-square-foot basis, the last sale (£312/sq ft) was about 68.3% above the typical sold price in the postcode. 10 years since the last transfer (July 2016).
Know exactly what you're buying at 3a
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
What this property has
Inside
- Bedrooms3
Outside
- GarageDouble
- LandYes
Building
- Extension potentialPossible
Energy performance
3a's carbon output runs well above what efficient homes in the postcode produce.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 30 Mar 2026
EPC Rating
Planning history
3a has an approved single-storey rear extension on the planning record.
- Nov 2019ExtensionFullIn report
Extension: Single storey · Rear of property
Single storey rear bedroom and garden room extensions
- Documents
- 22 docs on file
- Reference
- N/2019/1177
- May 2019
We flagged 2 things worth checking at 3a
Independent checks surfaced things a buyer would want to understand before offering. The report explains each one in full, with the underlying data and what to ask.
- Signs of HMO activity in the area
- Larger development activity nearby
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Sales history & valuation
3a valuation sits well clear of the typical sold price in this postcode.
£529,000
Modelled from EPC, postcode comparables.
£443,010
Recorded with HM Land Registry.
Sales timeline
21 July 2016Most recent
£443,010
Median price across the last 5 sales in NN5 6JB: £350,000 (2025–2018).
Nearby sales in NN5 6JB
24 Main Road, Duston, Northampton, NN5 6JB
Sold Jun 2025
£500,00011 Main Road, Duston, Northampton, NN5 6JB
Sold Jul 2023
£285,00030 Main Road, Duston, Northampton, NN5 6JB
Sold Dec 2021
£350,0008 Main Road, Duston, Northampton, NN5 6JB
Sold Jan 2021
£425,00028 Main Road, Duston, Northampton, NN5 6JB
Sold Aug 2017
£345,000
Everything we know about 3a, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Signs of HMO activity in the area
- Larger development activity nearby

Versus other Main Road homes
Price per m² for 3a runs comfortably ahead of the street norm.
Price per m²
£3,356
Street avg £2,394
Floor Area
132 m²
Street avg 156 m²
Habitable Rooms
4 rooms
Street avg 6 rooms
CO₂ Emissions
7.3 t/year
Street avg 7.3 t/year
Similar properties nearby
The neighbourhood at a glance
Crime
6/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Holmleigh Close — bus stop.
Closest school
0.4 km
Millway Primary School. 22 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
50.4dB

Night-time· 23:00 – 07:00
39.0dB