Grimbles, Long Mill Lane, Crouch, Borough Green, Sevenoaks, TN15 8QB
About Grimbles
Grimbles is a detached house in Borough Green, Sevenoaks, Sevenoaks (TN15 8QB). It has a recorded floor area of 307 m² (around 3305 sq ft) and construction records dating it to 2024. The latest certificate (January 2026) returns a high B (score 89), putting the home a stone's throw from an A rating. When first surveyed in April 2023 the rating was D, the property has climbed 2 bands since. Between certificates, wall efficiency went from Average to Very Good, roof efficiency went from Good to Very Good and window efficiency went from Average to Very Good. The recommended improvements would push it to A (score 97). Main heating runs on electricity: electricity, unspecified tariff. This certificate was lodged in the last six months, so the rating reflects current condition.
At 307 m² the property is well over the postcode median (195 m² across 7 EPCs), placing it in the larger end of the local stock. Its energy rating outperforms most of the postcode (better than 75% of similar EPCs). 14 planning records sit against the property, 9 approved, 2 refused, 1 pending. An application is currently awaiting a decision. Across 1997–2024, sale prices on this property compounded at 5% per year. On a £-per-square-foot basis, the last sale (£310/sq ft) was about 15.2% above the typical sold price in the postcode. Most recent transfer: January 2024 at £1,025,000.
Know exactly what you're buying at Grimbles
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
Grimbles's carbon output is low for the local stock.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heat pump installed, significantly improving energy efficiency
Changed to a more efficient fuel source
Heating controls upgraded for better temperature management
High performance glazing installed
Wall insulation upgraded
Roof insulation improved
Floor insulation added or improved
More low energy lighting installed
Planning history
There is a planning application currently awaiting a decision.
- Jan 2026New BuildFullIn report
Erection of a detached residential dwelling with associated access.
- Agent
- Highcroft Designs
- Documents
- 32 docs on file
- Reference
- 26/00079/FL
- Dec 2025FullIn report
Section 73 application to vary Conditions 2 (Plans List), 8 (Hard and soft landscaping), 14 (External lighting) and 18 (Bin and cycle storage) of planning permission TM/25/00296/PA (S73 application for variation of condition 2 (plans list) of planning permission TM/23/03070 (Demolition of existing dwelling and erection of two new detached dwellings with associated works)) to allow for alterations to the approved landscaping scheme, external lighting positions and bin storage locations
- Documents
- 10 docs on file
- Reference
- 25/01708/FL
What's in Grimbles, Long Mill Lane, Crouch, Borough Green, Sevenoaks, TN15 8QB's planning history?
12 more on this property, plus refusals, disputes and full decisions nearby, in the report.
Sales history & valuation
Sale price has grown by over 3x since 1997.
£948,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.0% per year over 26 years.
£1,025,000
Growth on file: 5.0% per year over 26 years.
Sales timeline
22 January 2024Most recent
£1,025,000
+54.1%over 10 years9 December 2013
£665,000
+8.1%over 8 years8 August 2005
£615,000
+119.6%over 7 years10 August 1997
£280,000
Median price across the last 5 sales in TN15 8QB: £750,000 (2022–2019).
Nearby sales in TN15 8QB
Hawthorns, Long Mill Lane, Crouch, Borough Green, Sevenoaks, TN15 8QB
Sold Aug 2022
£1,430,0001 Crouch Cottages, Long Mill Lane, Crouch, Borough Green, Sevenoaks, TN15 8QB
Sold Aug 2019
£690,000Willow Cottage, Long Mill Lane, Crouch, Borough Green, Sevenoaks, TN15 8QB
Sold Aug 2019
£750,000Olde Forge, Long Mill Lane, Crouch, Borough Green, Sevenoaks, TN15 8QB
Sold Mar 2019
£1,010,000Mulberry House, Long Mill Lane, Crouch, Borough Green, Sevenoaks, TN15 8QB
Sold Dec 2018
£250,000
Everything we know about Grimbles, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
- Am I paying too much?
- Is something wrong with it?
- Is the agent's story true?
- Will it hold its value?

Versus other Long Mill Lane homes
Grimbles is notably below the street on years held.
Price per m²
£3,339
Street avg £3,181
Floor Area
307 m²
Street avg 176 m²
CO₂ Emissions
0.6 t/year
Street avg 6.1 t/year
Years Held
2 years
Street avg 14 years
Similar properties nearby
1 Apple Barn Court, Long Mill Lane, Crouch, Borough Green
TN15 8QF
1 Crouch Cottages, Long Mill Lane, Crouch, Borough Green
TN15 8QB
1 Black Barn Cottages, Crouch Lane, Borough Green
TN15 8LX
1 Bangays Way, Borough Green
TN15 8FS
1 Eaglestone Close, Borough Green
TN15 8EL
1 Basted Mill, Basted Lane, Borough Green
TN15 8LP
1 Claygate Cross Cottages, Winfield Lane, Borough Green
TN15 8PX
1 Crouch Lane, Borough Green
TN15 8LU
The neighbourhood at a glance
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
1.6 km
Brockway — bus stop.
Closest school
1.8 km
Platt Church of England Voluntary Aided Primary School. 4 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
42.6dB

Night-time· 23:00 – 07:00
35.7dB