21 Knatchbull Close, Romsey, SO51 8WJ
About 21 Knatchbull Close
21 Knatchbull Close is a semi-detached house in Romsey (SO51 8WJ). It has a recorded floor area of 24 m² (around 258 sq ft), construction records dating it to 1983-1990 and council tax band A. At 24 m² this is the smallest unit on EPC record across the building (24–100 m²). The building's EPC ratings span F to B across 63 units on file. The latest certificate (November 2024) shows a D (score 68), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since January 2014. Between certificates, roof efficiency went from Poor to Good, window efficiency went from Very Poor to Average and lighting went from Good to Very Good; while hot-water efficiency dropped from Average to Very Poor and main heating dropped from Average to Very Poor. The recommended improvements would push it to C (score 76). Main heating runs on electricity.
At 24 m² it sits well below the postcode median (40 m² across 62 EPCs), making it one of the more compact homes locally. Across 2015–2019, sale prices on this property compounded at 4.9% per year. On a £-per-square-foot basis, the last sale (£356/sq ft) was about 21.8% above the typical sold price in the postcode. Last sale on file: £92,000 in May 2019.
Know exactly what you're buying at 21 Knatchbull Close
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
Energy performance
21 Knatchbull Close's carbon output is low for the local stock.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating system changed
Heating controls upgraded for better temperature management
Hot water system changed
Single glazing replaced with double or better glazing
Roof insulation improved
More low energy lighting installed
Planning history
21 Knatchbull Close has no planning applications on record.
Notable planning nearby
2applications of note in the surrounding area
We flagged 1 thing worth checking at 21 Knatchbull Close
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
£100,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.9% per year over 4 years.
£92,000
Growth on file: 4.9% per year over 4 years.
Sales timeline
16 May 2019Most recent
£92,000
+22.7%over 4 years12 February 2015
£75,000
Median price across the last 5 sales in SO51 8WJ: £175,000 (2025–2023).
Nearby sales in SO51 8WJ
Everything we know about 21 Knatchbull Close, 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 Knatchbull Close homes
On co₂ emissions, 21 Knatchbull Close stands well clear of the street.
Price per m²
£3,833
Street avg £3,337
Floor Area
24 m²
Street avg 34 m²
Habitable Rooms
1 rooms
Street avg 2 rooms
CO₂ Emissions
1.3 t/year
Street avg 2.3 t/year
Similar properties nearby
1 Holbrook Place, Portersbridge Street
SO51 8DH
1 Knatchbull Close
SO51 8WJ
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1 Feltham Close
SO51 8PB
1 Abbey Lodge, Bridge Road
SO51 8LJ
1 Fleming Place
SO51 8WH
1 Holt Court, Latimer Street
SO51 8LD
1 Kings Court, Alma Road
SO51 8EB
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Abbey Lodge — bus stop.
Closest school
0.5 km
Romsey Primary School & Nursery. 7 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
52.9dB

Night-time· 23:00 – 07:00
44.3dB