Model valuation£417,0008 Busby Close
Local market context
21 Chalk Grove, Cambridge, CB1 8NT
1 planning record
Estimated value
£834,000
- Since the 2004 sale (£327,500)+155%
- Against CB1 8NT's recent median (£750,000)+11%
Newest record on this page: June 2026. Land Registry and EPC registers update monthly, so this page can trail them by 2–3 months.
Property type
Semi-detached
Habitable rooms
8
From EPC
Floor area
136 m²
1464 sq ft
Energy rating
C
Score 69
Council tax
Band F
Tenure
Private Rental
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
£834,000
- Against its 2004 sale (£327,500)+155%
- Against CB1 8NT's recent median (£750,000)+11%
Your note and figure are shown publicly on this page.
How the estimate is made
The estimate for 21 Chalk Grove is modelled from its 136 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in CB1 8NT. 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
136 m² from the EPC lodged in June 2026
Sales of this home
2 sales recorded, the latest in 2004
Recent sales in CB1 8NT
5 sales, median £750,000 (2026–2018)
This page or the full report?
| Data | This page | Full report |
|---|---|---|
| Sales | Latest sale shown: March 2026 | Latest available records, read when you order |
| Valuation | Estimate from the last refresh | Analysed against comparable sales |
| Planning | 1 application | Full history, plus nearby schemes |
| Flood risk | Not shown | Included |
Sales history & valuation
Every recorded sale of this home, how its price has moved, and what neighbouring properties have sold for.
21 Chalk Grove's modelled value sits at over four times its earliest registered sale price (1998).
Sales timeline
16 August 2004Most recent
£327,500
+87.1%over 5 years5 November 1998
£175,000
Median price across the last 5 sales in CB1 8NT: £750,000 (2026–2018).
What this page doesn't show
2 potential issues have already been flagged for 21 Chalk Grove, Cambridge, CB1 8NT. The detail, evidence and what to ask about it are in the Risks Report.
- Signs of HMO activity in the areaIn 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
One time fee only - money back guarantee
About 21 Chalk Grove
A plain-English summary derived from public records, EPC certificates, sold prices and local data.
21 Chalk Grove is a semi-detached house in Cambridge (CB1 8NT). It has a recorded floor area of 136 m² (around 1464 sq ft), construction records dating it to 1900-1929 and council tax band F. The latest certificate (June 2026) shows a C (score 69), just inside the C band. The rating has held steady at C across 2 certificates since July 2020. This certificate was lodged in the last six months, so the rating reflects current condition.
Untraded for 22 years, with the last transfer in August 2004. On energy efficiency it sits in the top 10% of properties in this postcode. Across 1998–2004, sale prices on this property compounded at 11.5% per year. Today's modelled estimate of £834,000 sits 154.7% above the 2004 sale of £327,500. On a £-per-square-foot basis, the last sale (£224/sq ft) was about 31.3% below the postcode norm. One planning record on file: an extension approved in 2019. Past consents include an extension, meaningful when judging how the property has evolved.
Before you decide
Everything you need to know about 21 Chalk Grove
The true value, the hidden risks and the full sale history, in one report.
Signs of HMO activity in the areaLarger development activity nearby
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The data behind every report
Energy performance
Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.
21 Chalk Grove ranks among the most efficient homes in the postcode for energy use.
Current Certificate(1 of 2)
Jun 2026
EPC Rating
A
B
C
C69
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
4.4 t/year
Occupancy
Rented
Certificate validity
Valid until 25 June 2036
Planning history
Applications and permits filed against 21 Chalk Grove, Cambridge, CB1 8NT, sourced from the PlanIt planning register.
21 Chalk Grove has an approved side extension on the planning record.
1 application on record at 21 Chalk Grove, Cambridge, CB1 8NT
1decisions1extensions9documents9nearby
- Jun 2019ExtensionFullOutcome in report
Extension: Side of property
Side roof extension (changing flat roof to tiled pitched roof).
- Council
- Cambridge City Council
- Documents
- 9 docs on file
- Reference
- 19/0608/FUL
Unlock 21 Chalk Grove, Cambridge, CB1 8NT's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (1 on record)
- All 1 application on this property in full, plus 9 notable nearby
- The 9 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Versus other Chalk Grove homes
Four headline reads against 12 similar houses on this street, drawn from the latest EPC and Land Registry data.
EPC Rating for 21 Chalk Grove runs comfortably ahead of the street norm.
Price per m²
£2,408
Street avg £4,335
Floor Area
136 m²
Street avg 131 m²
Habitable Rooms
8 rooms
Street avg 7 rooms
CO₂ Emissions
4.4 t/year
Street avg 5.9 t/year
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.
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
334/mo
Steady year-on-year across the wider district.
Nearest stop
2.2 km
Cambridge Rail Station — railway station.
Closest school
0.3 km
Queen Edith Primary School. 21 schools nearby.
Nearest schools
- Queen Edith Primary SchoolPrimary318m
- The Netherhall SchoolSecondary503m
- Queen Emma Primary SchoolPrimary605m
- Morley Memorial Primary SchoolPrimary1.2km
Nearest stops
- Cambridge Rail StationRailway station2.2km
Most reported crime locally
- Violence & Sexual Offences1,681 reports30%
- Anti-social Behaviour842 reports15%
- Shoplifting741 reports13%
- Criminal Damage & Arson411 reports7%
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode
Modelled day and night-time noise levels around CB1 8NT from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime· 07:00 – 23:00
47.5dB
Night-time· 23:00 – 07:00
38.1dB
55 dB
60 dB
65 dB
70 dB
75 dB
80 dB
Defra Road Noise Strategic Mapping, Round 4
Get a survey for this property
Level 3 Building Survey
Victorian-eraSemi-Detached HouseEPC CPre-1919 buildExtended multiple times (2+ extensions)Solid (non-cavity) walls
Because the property was built before 1919, has been extended more than once, and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £1,360 · Includes VAT
Similar properties nearby
A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
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Start your researchHow to read this page
Where every figure above comes from, how current it is and what it can't tell you.
- How the estimate is made
- The estimate for 21 Chalk Grove is modelled from its 136 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in CB1 8NT. 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. 2 sales are recorded for 21 Chalk Grove. 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 21 Chalk Grove was lodged in June 2026 at band C and is valid until June 2036. 2 certificates are on record, which shows how the home has changed.
- Planning records
- Planning applications are collected from local authority registers through PlanIt. 1 application is matched to 21 Chalk Grove. 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 17 months, which places each incident at an approximate point. The 21 schools and 1 stop listed are measured in a straight line from CB1 8NT, not by walking route. Road noise is Defra's strategic noise modelling, averaged across the postcode.
- Council tax band
- 21 Chalk Grove is in council tax band F. Bands are set by the Valuation Office Agency from historic values (1 April 1991 in England, 1 April 2003 in Wales), not today's price; the amount you pay depends on the council's rate for the band.
Common questions
The questions buyers, sellers and homeowners most often ask about 21 Chalk Grove, Cambridge, CB1 8NT. Each answer is also embedded as structured data for search engines.
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- Every home in CB1 8NTSold prices, values and energy ratings for the postcode
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