Centenary House, Flat 5, 11 Overslade Close, Northampton, NN4 0RZ
About Centenary House
Centenary House is a mid-terrace house in Northampton (NN4 0RZ). It has a recorded floor area of 60 m² (around 646 sq ft) and construction records dating it to 1983-1990. At 60 m² this is the smallest unit on EPC record across Centenary House (60–93 m²). The building's EPC ratings span C to B, with this unit at the bottom. The latest certificate (July 2024) shows a C (score 80), near the top of the C band. Earlier certificates rated it B (March 2009); the latest reading is one band lower. Between certificates, wall efficiency went from Good to Very Good, window efficiency went from Average to Good and hot-water efficiency went from Average to Good.
Energy performance
Centenary House's carbon output is low for the local stock.
EPC Rating
Property Improvements
Changes detected from historical EPC data
More low energy lighting installed
Low energy lighting percentage decreased
Heating controls upgraded for better temperature management
Hot water system upgraded
More low energy lighting installed
High performance glazing installed
More low energy lighting installed
Wall insulation upgraded
Floor insulation added or improved
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Planning history
Centenary House has no planning applications on record.
But the area is active
3 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
Centenary House has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£200,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Versus other Overslade Close homes
On floor area, Centenary House runs well behind the street norm.
EPC Rating
80 (C)
Street avg 80 (C)
Floor Area
60 m²
Street avg 67 m²
CO₂ Emissions
1.3 t/year
Street avg 1.4 t/year
Habitable Rooms
3 rooms
Street avg 3 rooms
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The neighbourhood at a glance
Crime
9/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Abbey Centre — bus stop.
Closest school
0.5 km
Simon de Senlis Primary School. 19 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
55.1dB

Night-time· 23:00 – 07:00
46.9dB







