Flat 1, 13 Sidney Street, Grantham, NG31 8AZ
About Flat 1
Flat 1 is a semi-detached house in Grantham (NG31 8AZ). It has a recorded floor area of 45 m² (around 484 sq ft), construction records dating it to before 1900 and council tax band A. At 45 m² this is the 3rd smallest of 4 units on EPC record in the building, where floor areas span 32–46 m². The building's EPC ratings span E to D, with this unit at the bottom. On EPC score it ranks last in the building (45 versus a best of 62). The latest certificate (May 2025) shows an E (score 45), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since March 2021. Between certificates, main heating went from Very Poor to Average. The recommended improvements would push it to D (score 61). Main heating runs on electricity.
At 45 m² it sits well below the postcode median (87 m² across 52 EPCs), making it one of the more compact homes locally.
Everything you need to know about Flat 1
The true value, the hidden risks and the full sale history, in one report.
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The data behind every report
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating system upgraded to a more efficient system
Heating controls changed
Hot water system upgraded
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919, has no mains gas supply, and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
Flat 1 has no planning applications on record.
Notable planning nearby
6applications of note in the surrounding area
We flagged 2 things worth checking at Flat 1
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
Flat 1 has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£129,000
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.
Median price across the last 5 sales in NG31 8AZ: £145,000 (2025–2023).
Nearby sales in NG31 8AZ
Versus other Sidney Street homes
EPC Rating for Flat 1 lags the street by a wide margin.
EPC Rating
45 (E)
Street avg 64 (D)
Floor Area
45 m²
Street avg 49 m²
CO₂ Emissions
5.8 t/year
Street avg 2.7 t/year
Habitable Rooms
1 rooms
Street avg 2 rooms
Everything you need to know about Flat 1
The true value, the hidden risks and the full sale history, in one report.
30-day money-back guarantee
The data behind every report
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The neighbourhood at a glance
Crime
7/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
New Street — bus stop.
Closest school
0.3 km
The King's School, Grantham. 20 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
50.8dB
Night-time· 23:00 – 07:00
42.2dB