Our Data Sources
20, King John Street, Sleaford has a single entry in the Land Registry from March 2015 and a single entry in the EPC database dated April 2019.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 5 out of 5 and is considered of high accuracy.
Price Range & Condition
In very good condition, we estimate 20, King John Street, Sleaford would be worth £133,623, with a potential rental value of £737 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £118,352, with a rental value of £653 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Energy Efficiency
20, King John Street, Sleaford has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 30 Apr 2019.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
20, King John Street, Sleaford last changed hands on 26th March 2015, selling for £70,000. The transaction was logged as a freehold house by HM Land Registry.
That is its only recorded sale since 1995.
The market for similar properties has risen by 103.1% since March 2015.
- Sold Mar 2015£70,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 96 sales of comparable properties within 580 metres of 20, King John Street, Sleaford across the last 2 years.
Most recently, 14, King John Street, Sleaford, NG34 7QH, a freehold house, sold at £132,000 on the 19th September 2025.
Read more about house prices in NG34.
- Sold Sep 2025£132,000 | 3 Bed House14, King John Street, Sleaford, NG34 7QH14, King John Street, Sleaford, NG34 7QH
- Sold May 2025£148,000 | 3 Bed House3A, Castle Terrace Road, Sleaford, NG34 7QF3A, Castle Terrace Road, Sleaford, NG34 7QF
- Sold Aug 2021£111,000 | 3 Bed House3, King John Street, Sleaford, NG34 7QH3, King John Street, Sleaford, NG34 7QH
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
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Location Comparison
Our analysis of the public data ranks 20, King John Street, Sleaford as the 19th largest and the 21st most expensive of the 23 addresses on King John Street, Sleaford, NG34.
Against the NG34 postcode district average, it is £114k less expensive than the typical property.
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Schools Nearby
- Our Lady of Good Counsel Catholic Primary School, A Voluntary Academy500 m away
- Church Lane Primary School & Nursery600 m away
- St Botolph's C of E Primary School800 m away
- Kesteven and Sleaford High School Selective Academy300 m away
- St George's Academy400 m away
- Carre's Grammar School600 m away
More reading links
Public Transport Nearby
- Sleaford|500 m away
- Rauceby|3.1 km away
- Ruskington|5.4 km away
Available Internet Speeds
Ofcom's latest figures show superfast broadband available in this area.
According to recent data from Ofcom, Superfast Broadband is available in the area.
Risk of Flooding
Environment Agency data suggests this area has a Low risk of flooding.












