What type of property is 1b, Challis Close, CB22 3LT?

1b, Challis Close, CB22 3LT is a detached house.

What did 1b, Challis Close, CB22 3LT sell for?

1b, Challis Close, CB22 3LT last sold for £562,500 in September 2021, around 5 years ago. Source: HM Land Registry.

How energy efficient is 1b, Challis Close, CB22 3LT?

The current EPC rating for 1b, Challis Close, CB22 3LT is B with a score of 86 out of 100, lodged in June 2021. The assessor estimates the property could reach a A. Source: EPC Register.

What is the floor area of 1b, Challis Close, CB22 3LT?

1b, Challis Close, CB22 3LT has a recorded floor area of 119 m² (1,281 sq ft). That makes it about 40% larger than the median EPC-recorded property in CB22 3LT. Source: EPC Register.

How is 1b, Challis Close, CB22 3LT heated?

The latest EPC at 1b, Challis Close, CB22 3LT records gas: mains gas as the main heating fuel. Source: EPC Register.

Where is 1b, Challis Close, CB22 3LT located?

1b, Challis Close, CB22 3LT sits in Sawston, Cambridge, Cambridge. It falls within the CB22 postcode district in Cambridgeshire.

Is 1b, Challis Close, CB22 3LT in a safe area?

Police records around 1b, Challis Close, CB22 3LT show an average of 82 reported crimes per month over the last 15 months. Violent crime makes up roughly 37% of reports, the most common category. The overall trend is falling (18% versus the prior period). Source: Police UK.

Which schools serve 1b, Challis Close, CB22 3LT?

The closest primary school to 1b, Challis Close, CB22 3LT is The Bellbird Primary School (590m), one of 4 primaries within walking distance. The closest secondary is Sawston Village College (503m).

What is the nearest station to 1b, Challis Close, CB22 3LT?

The closest rail stop to 1b, Challis Close, CB22 3LT is Whittlesford Parkway Rail Station, 2.1km away.

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1b, Challis Close, Sawston, Cambridge, CB22 3LT

EPC B

Estimated value

£599,000

Since the 2021 sale (£562,500)+6%
Against CB22 3LT's recent median (£546,250)+10%

Newest record on this page: February 2023. Land Registry and EPC registers update monthly, so this page can trail them by 2–3 months.

Learn about this valuation

Property type

Detached

Floor area

119 m²

1281 sq ft

Energy rating

Score 86

Tenure

Owner Occupied

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Valuation

About this valuation

How the figure is worked out and what it's based on. If you know this home, you can tell other visitors what you think it's worth.

Our estimate

£599,000

Against its 2021 sale (£562,500)+6%
Against CB22 3LT's recent median (£546,250)+10%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 1b is modelled from its 119 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in CB22 3LT. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.

What it's based on

Floor area
119 m² from the EPC lodged in June 2021
Sales of this home
1 sale recorded, the latest in 2021
Recent sales in CB22 3LT
5 sales, median £546,250 (2023–2020)

This page or the full report?

Data	This page	Full report
Sales	Latest sale shown: February 2023	Latest available records, read when you order
Valuation	Estimate from the last refresh	Analysed against comparable sales
Planning	None on this home	Full history, plus nearby schemes
Flood risk	Not shown	Included

Price

Sales history & valuation

Every recorded sale of this home, how its price has moved, and what neighbouring properties have sold for.

The latest sale landed in the post-pandemic price surge — useful context when reading the figure.

Sales timeline

30 September 2021Most recent
£562,500

Median price across the last 5 sales in CB22 3LT: £546,250 (2023–2020).

Nearby sales in CB22 3LT

Risks

What this page doesn't show

1 potential issue has already been flagged for 1b, Challis Close, Sawston, Cambridge, CB22 3LT. The detail, evidence and what to ask about it are in the Risks Report.

Larger development activity nearbyIn report
Flood risk from rivers, sea and surface waterIn report
Subsidence and ground-stability signalsIn report
Refusals, enforcement and big schemes nearbyIn report

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Overview

About 1b

A plain-English summary derived from public records, EPC certificates, sold prices and local data.

1b is a detached house in Sawston, Cambridge, Cambridge (CB22 3LT). It has a recorded floor area of 119 m² (around 1281 sq ft) and construction records dating it to 2021. The latest certificate (June 2021) returns a high B (score 86), putting the home a stone's throw from an A rating. The rating has held steady at B across 2 certificates since April 2021. The recommended improvements would push it to A (score 111).

At 119 m² the property is well over the postcode median (84 m² across 49 EPCs), placing it in the larger end of the local stock. Most recent transfer: September 2021 at £562,500. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.

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Everything you need to know about 1b

The true value, the hidden risks and the full sale history, in one report.

Larger development activity nearby

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The data behind every report

Energy

Energy performance

Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.

1b's carbon output is low for the local stock.

Current Certificate(1 of 2)

Jun 2021

EPC Rating

B86

Main Heating

Gas

Main Fuel

Gas

Hot Water

Very Good

Windows

Very Good

CO2 Emissions

1.4 t/year

Occupancy

Owner Occupied

Certificate validity

Valid until 8 June 2031

4 years remaining

Planning

Planning history

Applications and permits filed against 1b, Challis Close, Sawston, Cambridge, CB22 3LT, sourced from the PlanIt planning register.

1b has no planning applications on record.

But the area is active

1 notable application nearby — larger schemes and conversions that could reshape the street. The report maps them all.

On the street

Versus other Challis Close homes

Four headline reads against 38 similar houses on this street, drawn from the latest EPC and Land Registry data.

On years held, 1b runs well behind the street norm.

Price per m²

£4,727

Street avg £4,486

Above

Floor Area

119 m²

Street avg 100 m²

Above

CO₂ Emissions

1.4 t/year

Street avg 1.4 t/year

On par

Years Held

5 years

Street avg 6 years

Strongly below

Area

The neighbourhood at a glance

A condensed read of the local area. Each tile links through to the full breakdown on the Cambridge district page.

Full Cambridge report

Crime

82/mo

Falling year-on-year across the wider district.

Nearest stop

2.1 km

Whittlesford Parkway Rail Station — railway station.

Closest school

0.5 km

Sawston Village College. 5 schools nearby.

Nearest schools

Sawston Village CollegeSecondary503m
The Bellbird Primary SchoolPrimary590m
William Westley Church of England VC Primary SchoolPrimary1.1km
The Icknield Primary SchoolPrimary1.3km

Nearest stops

Whittlesford Parkway Rail StationRailway station2.1km

Most reported crime locally

Violence & Sexual Offences451 reports37%
Anti-social Behaviour234 reports19%
Criminal Damage & Arson114 reports9%
Burglary92 reports7%

Go deeper on the local area

A Local Area report breaks down crime, transport links, schools and air quality in depth.

Noise

Road noise across the postcode

Modelled day and night-time noise levels around CB22 3LT from Defra's strategic mapping. The pin marks this postcode's centroid.

Daytime· 07:00 – 23:00

52.1dB

Low

Night-time road noise heatmap for CB22 3LT

Night-time· 23:00 – 07:00

42.7dB

Low

55 dB

60 dB

65 dB

70 dB

75 dB

80 dB

Defra Road Noise Strategic Mapping, Round 4

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21st centuryDetached HouseEPC B

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Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.

£648k

1 Crampton Terrace, Sawston

CB22 3JD

4 bed

£550k

1 Broadmeadow, Sawston

CB22 3EB

£672k

1 Adeane Road, Sawston

CB22 3FN

£712k

1 Babraham Road, Sawston

CB22 3DQ

4 bed2 bath

£499k

1 Bennett Way, Sawston

CB22 3FR

£750k

1 Church Lane, Pampisford

CB22 3ET

£476k

1 Brookfield Close, Sawston

CB22 3ED

3 bed

£469k

1 Challis Close, Sawston

CB22 3LT

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Method

How to read this page

Where every figure above comes from, how current it is and what it can't tell you.

Valuation method in detail

How the estimate is made: The estimate for 1b is modelled from its 119 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in CB22 3LT. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.
Where sold prices come from: Sold prices are HM Land Registry Price Paid Data, which covers residential sales in England and Wales since 1995. 1 sale is recorded for 1b. Sales normally appear two to three months after completion, so the most recent ones take time to show up anywhere.
Reading the EPC: Energy Performance Certificates rate homes from A (most efficient) to G and last 10 years. The latest one for 1b was lodged in June 2021 at band B and is valid until June 2031. 2 certificates are on record, which shows how the home has changed.
Planning records: Planning applications are collected from local authority registers through PlanIt. None is matched to 1b. Councils sometimes file applications under a different address format, and applications on neighbouring land aren't listed here; the report covers both.
Area figures: Crime is police-recorded street-level data over the last 15 months, which places each incident at an approximate point. The 5 schools and 1 stop listed are measured in a straight line from CB22 3LT, not by walking route. Road noise is Defra's strategic noise modelling, averaged across the postcode.

FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 1b, Challis Close, Sawston, Cambridge, CB22 3LT. Each answer is also embedded as structured data for search engines.

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