Are you a property professional?Get qualified leads from motivated homeowners.
Get startedFlat, 20 Swinegate, Grantham, NG31 6RJ
EPC B
About Flat
A plain-English summary derived from public records, EPC certificates, sold prices and local data.
Flat is a semi-detached house in Grantham (NG31 6RJ). It has a recorded floor area of 39 m² (around 420 sq ft), construction records dating it to 2025 and council tax band A. At 39 m² this is the smallest unit on EPC record across the building (39–324 m²). The building's EPC ratings span F to B, with this unit at the top. The latest certificate (September 2025) returns a B (score 82), comfortably above the UK average. When first surveyed in August 2015 the rating was F, the property has climbed 4 bands since. Between certificates, wall efficiency went from Very Poor to Very Good, roof efficiency went from Good to Very Good and window efficiency went from Average to Good; while main heating dropped from Good to Very Poor. Main heating runs on electricity: electricity, unspecified tariff.
Sale prices here have outpaced England HPI: 9.1% per year against 0% for the wider region. Today's modelled estimate of £113,000 is 44.9% below the 2018 sale of £205,000, a rare downward gap that often correlates with deferred maintenance or unfinished works. On a £-per-square-foot basis, the last sale (£488/sq ft) was about 481.7% above the typical sold price in the postcode. At 39 m² it sits well below the postcode median (129 m² across 10 EPCs), making it one of the more compact homes locally. On energy efficiency it sits in the top 10% of properties in this postcode. Most recent transfer: October 2018 at £205,000.
Energy performance
Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.
Flat ranks among the most efficient homes in the postcode for energy use.
Current Certificate(1 of 2)
Sept 2025
EPC Rating
A
B
B82
C
D
E
F
G
Main Heating
Electric
Main Fuel
Electric
Hot Water
Very Good
Windows
Good
CO2 Emissions
0.2 t/year
Occupancy
—
Sales history & valuation
Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.
Flat has more than doubled in price since the earliest registered sale in 2009.
Current estimate
See how we calculated this£113,000
Modelled from EPC, postcode comparables and a sale-price growth of 9.1% per year over 9 years.
Last sold (2018)
£205,000
Growth on file: 9.1% per year over 9 years.
Sales timeline
Similar properties nearby
A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
The neighbourhood at a glance
A condensed read of the local area. Each tile links through to the full breakdown on the Grantham district page.
Crime
8/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Vine Street — bus stop.
Road noise across the postcode
Modelled day and night-time noise levels around NG31 6RJ from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime· 07:00 – 23:00
52.4dB
Everything within walking distance
Schools, transport stops and scenic spots near this property — 50 points of interest in total.
Beautiful places to visit nearby
Curated scenic spots within reach of this postcode, served by Beautifulplaces.ai. Photography and tagging come from their open dataset.
Common questions
The questions buyers, sellers and homeowners most often ask about Flat, 20 Swinegate, Grantham, NG31 6RJ. Each answer is also embedded as structured data for search engines.