12 Excalibur Close, Northampton, NN5 4BJ
About 12 Excalibur Close
12 Excalibur Close is a five-bedroom detached house in Northampton (NN5 4BJ). It has a recorded floor area of 153 m² (around 1647 sq ft), construction records dating it to 1991-1995 and council tax band F. The latest certificate (October 2015) 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 June 2011. Between certificates, wall efficiency dropped from Good to Very Poor and roof efficiency dropped from Good to Average. The recommended improvements would lift it to B (score 82), a 2-band jump. The latest certificate is from October 2015, so improvements made since then won't be reflected. Other recorded features include a conservatory. The home occupies a cul-de-sac position.
Today's modelled estimate of £547,000 is 28.7% above the 2016 sale price. On a £-per-square-foot basis, the last sale (£258/sq ft) was about 104.4% above the typical sold price in the postcode. Last sold in July 2016, so it's been off the market for around 10 years.
Know exactly what you're buying at 12 Excalibur Close
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
- Bedrooms5
- Bathrooms2
- Dining roomYes
- EnsuiteYes
- ConservatoryYes
Outside
- Private gardenFront and rear
- GarageDouble
- Cul-de-sacYes
Energy performance
12 Excalibur Close'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This certificate is over 10 years old and is no longer valid.Expired 28 Oct 2025
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Planning history
12 Excalibur Close has no planning applications on record.
Notable planning nearby
13applications of note in the surrounding area
We flagged 2 things worth checking at 12 Excalibur Close
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
12 Excalibur Close valuation sits well clear of the typical sold price in this postcode.
£547,000
Modelled from EPC, postcode comparables.
£425,000
Recorded with HM Land Registry.
Sales timeline
28 July 2016Most recent
£425,000
Median price across the last 5 sales in NN5 4BJ: £406,500 (2024–2011).
Nearby sales in NN5 4BJ
10 Excalibur Close, Northampton, NN5 4BJ
Sold Jul 2024
£640,00014 Excalibur Close, Northampton, NN5 4BJ
Sold Sept 2023
£500,00020 Excalibur Close, Northampton, NN5 4BJ
Sold Apr 2017
£406,50017 Excalibur Close, Northampton, NN5 4BJ
Sold Nov 2011
£324,0005 Excalibur Close, Northampton, NN5 4BJ
Sold Oct 2011
£325,000
Everything we know about 12 Excalibur Close, 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 Excalibur Close homes
Price per m² for 12 Excalibur Close runs comfortably ahead of the street norm.
Price per m²
£2,778
Street avg £1,962
Floor Area
153 m²
Street avg 176 m²
Habitable Rooms
8 rooms
Street avg 8 rooms
CO₂ Emissions
7.1 t/year
Street avg 6.8 t/year
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The neighbourhood at a glance
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
6/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
The Duston School — bus stop.
Closest school
0.3 km
The Duston School. 15 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
47.7dB

Night-time· 23:00 – 07:00
38.3dB