Old Barley Mow, Priors Marston Road, Hellidon, Daventry, NN11 6GG
About Old Barley Mow
Old Barley Mow is a four-bedroom detached house in Hellidon, Daventry, Daventry (NN11 6GG). It has a recorded floor area of 90 m² (around 969 sq ft) and construction records dating it to before 1900. There is a swimming pool on the plot, uncommon for the area. Other recorded features include attached land beyond the plot and a basement. The latest certificate (August 2024) shows an E (score 42), well below the UK norm with real room to improve. When first surveyed in April 2010 the rating was F, the property has climbed 1 band since. Between certificates, window efficiency went from Poor to Average and lighting went from Poor to Very Good. The recommended improvements would lift it to C (score 80), a 2-band jump. Main heating runs on oil.
Across 2010–2025, sale prices on this property compounded at 2.3% per year. Today's modelled estimate of £961,000 is 13.4% below the 2025 sale of £1,110,000, an unusual pattern given regional price growth and worth checking against the EPC condition. On a £-per-square-foot basis, the last sale (£1,146/sq ft) was about 273.2% above the typical sold price in the postcode. At 90 m² the property is well over the postcode median (42 m² across 12 EPCs), placing it in the larger end of the local stock. It changed hands recently, sold May 2025 for £1,110,000. 3 planning records sit against the property, 2 approved, 0 refused.
Know exactly what you're buying at Old Barley Mow
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
- Bedrooms4
- Bathrooms2
- Open-plan layoutYes
- BasementYes
Outside
- GarageYes
- LandYes
- Swimming poolYes
Energy performance
Old Barley Mow's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Windows upgraded, improving insulation
More low energy lighting installed
Planning history
- Jul 2025Tree WorksTreesIn report
Location 1 - Removal of 2 Leylandii at driveway Location 2 - TRemoival of 5 Leylandii in rear garden
- Documents
- 6 docs on file
- Reference
- 2025/2291/TCA
- Nov 2017OutbuildingFullIn report
Construction of barbecue hut
- Documents
- 5 docs on file
- Reference
- DA/2017/0979
We flagged 1 thing worth checking at Old Barley Mow
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.
- Larger development activity nearby
30-day money-back guarantee
Sales history & valuation
Old Barley Mow valuation sits well clear of the typical sold price in this postcode.
£961,000
Modelled from EPC, postcode comparables and a sale-price growth of 2.3% per year over 15 years.
£1,110,000
Growth on file: 2.3% per year over 15 years.
Sales timeline
14 May 2025Most recent
£1,110,000
+38.8%over 14 years25 August 2010
£800,000
Median price across the last 5 sales in NN11 6GG: £715,000 (2023–1995).
Nearby sales in NN11 6GG
Fir Tree Cottage, Priors Marston Road, Hellidon, Daventry, NN11 6GG
Sold Aug 2023
£825,000The White House, Priors Marston Road, Hellidon, Daventry, NN11 6GG
Sold Mar 2021
£715,000The Manor House, Priors Marston Road, Hellidon, Daventry, NN11 6GG
Sold Jan 2018
£1,050,000Fir Trees House, Priors Marston Road, Hellidon, Daventry, NN11 6GG
Sold Jun 1995
£200,000
Everything we know about Old Barley Mow, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Larger development activity nearby

Versus other Priors Marston Road homes
Price per m² for Old Barley Mow runs comfortably ahead of the street norm.
Price per m²
£12,333
Street avg £4,335
Floor Area
90 m²
Street avg 229 m²
Habitable Rooms
4 rooms
Street avg 7 rooms
CO₂ Emissions
7.3 t/year
Street avg 7.1 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
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.6 km
The Red Lion PH — bus stop.
Closest school
2.3 km
The Priors School. 1 school 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
44.3dB

Night-time· 23:00 – 07:00
36.7dB