Grumbla Grumbla, Cornwall
23 addresses across 5 postcodes (TR20), about 1.1 km (0.7 miles) long. USRN 29900924.
- Sales: 7 recorded sales since 1995; in 2010 the median was £241,125 across 2 sales.
- Energy: 9 homes have an energy certificate (D: 1, E: 2, F: 3, G: 3).
- Flood: 1 address on its postcodes is in areas at high or medium risk of flooding from rivers, the sea or surface water.
- Council tax: Most homes around it are in council tax band D; Band D in Cornwall costs £2,591 a year in 2026-27.
- Broadband: Gigabit broadband is available to 88% to 100% of premises.
- Transport: The nearest railway station is Penzance, about 6.8 km (4.3 miles) away in a straight line.
- Air: Background air pollution in 2024 was 1.9 µg/m³ of nitrogen dioxide and 4.7 of PM2.5, within UK legal limits.
- Height: Its addresses are 122 to 153 m above sea level.
- Noise: 2 of its 23 addresses are modelled at 55 dB or more from road traffic.
- Doctors: The nearest GP surgery is Atlantic Medical Group, about 6 km (3.7 miles) away.
- People: About 330 people lived in the census areas around it in 2021; 76% of households owned their home and 41% of adults held a degree or other higher qualification.
Sales on this street
| Year | Sales | Median price | Lowest | Highest |
|---|---|---|---|---|
| 2010 | 2 | £241,125 | £122,250 | £360,000 |
| 2005 | 1 | £93,750 | £93,750 | £93,750 |
| 2004 | 1 | £60,000 | £60,000 | £60,000 |
| 2001 | 1 | £172,000 | £172,000 | £172,000 |
| 1998 | 1 | £145,000 | £145,000 | £145,000 |
| 1995 | 1 | £100,000 | £100,000 | £100,000 |
| Date | Address | Type | Price | Notes |
|---|---|---|---|---|
| 21 Oct 2010 | HIGHER TREVARTHEN TR20 8QY | Semi-detached | £122,250 | |
| 8 Apr 2010 | CROMLEGH VYAN TR20 8QU | Detached | £360,000 | |
| 27 Apr 2005 | HIGHER TREVARTHEN TR20 8QY | Terraced | £93,750 | |
| 12 Mar 2004 | HIGHER TREVARTHEN TR20 8QY | Terraced | £60,000 | |
| 28 Aug 2001 | CROMLEGH VYAN TR20 8QU | Detached | £172,000 | |
| 24 Jul 1998 | HIGH BARN TR20 8QY | Detached | £145,000 | |
| 2 Oct 1995 | CHY COLL TR20 8QY | Detached | £100,000 |
Energy performance certificates
9 homes with a current certificate; median floor area 105 m². Most common: House, detached (5); House, semi-detached (4). Built: before 1900 (8); 1976-1982 (1). Tenure at assessment: owner-occupied (6); rented (private) (2).
Each home's certificates and sales (7 addresses)
Council tax
What each band costs in Cornwall in 2026-27: Band D £2,591 a year on average, including the police, fire and any county and parish charges.
| A | B | C | D | E | F | G | H |
|---|---|---|---|---|---|---|---|
| £1,727 | £2,015 | £2,303 | £2,591 | £3,167 | £3,742 | £4,318 | £5,182 |
Homes by band in the neighbourhood around this street: most are in band D (27% of about 820 homes).
Planning and heritage
- Conservation area: no postcode centre in this street's postcodes is in one.
- Listed buildings on or by this street: none.
- Article 4 direction (removing permitted development rights): none recorded, though not every council has published theirs.
- Tree preservation orders: none recorded, though not every council has published theirs.
- Green belt: no.
Brownfield land registered for housing within 1 km (0.6 miles)
- Trevarthan Bungalow & The Sawmill Grumbla Sancreed St Just Penzance Cornwall: up to 5 homes, permissioned (380 m)
Roadworks
No street works under way, planned or finished in the last three months on this street, in permits up to 30 September 2026.
Flood risk
Rivers, the sea or surface water: in this street's postcodes, 1 address is in areas at high risk, 0 at medium risk and 0 at low risk. Each address counts once, at the higher of its rivers-and-sea and surface-water risk.
Rivers and the sea alone: no home is in an area at risk.
High: 3.3% (1 in 30) or more chance of flooding a year. Medium: 1% to 3.3%. Low: 0.1% to 1%. Very low: under 0.1%. The rivers and sea figures allow for flood defences. Counts cover whole postcodes, which can include other streets.
Flood zone for planning: no postcode centre on this street is in flood zone 2 or 3.
| Postcode | Planning zone | Addresses at high / medium / low risk | Groundwater |
|---|---|---|---|
| TR20 8QX | not in 2 or 3 | 0 / 0 / 0 | unlikely |
| TR20 8QU | not in 2 or 3 | 0 / 0 / 0 | unlikely |
| TR20 8QP | not in 2 or 3 | 0 / 0 / 0 | unlikely |
| TR20 8QW | not in 2 or 3 | 0 / 0 / 0 | unlikely |
| TR20 8QY | not in 2 or 3 | 1 / 0 / 0 | unlikely |
Height above sea level
The street's 23 addresses are between 122 m and 153 m above sea level (141 m on average); the ground rises about 30 m from the lowest to the highest.
Broadband
| Postcode | Superfast (30 Mbit/s+) | Ultrafast (300 Mbit/s+) | Gigabit | Below 10 Mbit/s |
|---|---|---|---|---|
| TR20 8QP | 94% | 94% | 94% | 6% |
| TR20 8QU | 100% | 100% | 100% | 0% |
| TR20 8QW | 100% | 100% | 100% | 0% |
| TR20 8QX | 100% | 100% | 100% | 0% |
| TR20 8QY | 88% | 88% | 88% | 13% |
Getting around
| Nearest | Distance | |
|---|---|---|
| Railway stations | Penzance 685,000 journeys in 2024–25 | 6.8 km (4.3 miles) |
| St Erth 445,000 journeys in 2024–25 | 14.6 km (9.1 miles) | |
| Bus stops | 2 stops within 400 m (0.2 miles), 2 within 800 m (0.5 miles); nearest Lower Botrea Grumbla | 360 m |
| Bus or coach station | Bus Station Penzance | 6.9 km (4.3 miles) |
| Ferry terminal | Penzance Ferry Terminal | 7 km (4.4 miles) |
| EV charging points | PoGo Charge | 6.9 km (4.3 miles) |
| Airport with scheduled flights | Land's End Airport LEQ | 3.3 km (2 miles) |
| Nearest large airport | Cardiff International Airport CWL | 215 km (134 miles) |
Local services
| Nearest | Distance | |
|---|---|---|
| GP surgeries | Atlantic Medical Group | 6 km (3.7 miles) |
| Pharmacies | Day Lewis Pharmacy | 4 km (2.5 miles) |
| NHS dentists | The Bay Dental Practice | 6.1 km (3.8 miles) |
| Hospital | Poltair Hospital | 5.3 km (3.3 miles) |
| Police station | Devon and Cornwall Police Enquiry Office | 6.2 km (3.8 miles) |
| Cash machines | The Cooperative Food St Just, Cornwall Cashzone | 4 km (2.5 miles) |
Parks and green space
No parks, play areas, playing fields or allotments within 3 km (1.9 miles).
Landmarks
The nearest historic landmark is Megalithic tomb 220yds (200m) SW of Trevarthen, a scheduled monument, 460 m (0.3 miles) south-west.
| Name | What it is | From the middle of the street |
|---|---|---|
| Megalithic tomb 220yds (200m) SW of Trevarthen | Scheduled monument | 460 m (0.3 miles) south-west |
| Hut circle 280yds (250m) SW of Trevarthen | Scheduled monument | 500 m (0.3 miles) south-west |
| Chapel 140m south west of Bosence | Scheduled monument | 630 m (0.4 miles) north |
| Name | What it is | From the middle of the street |
|---|---|---|
| The Beacon | Hill | 780 m (0.5 miles) south-east |
| Carn Boswarthen | Hill | 850 m (0.5 miles) south |
| Drift Reservoir | Lake or reservoir | 2.7 km (1.6 miles) east |
| Tregavarah Downs | Wood | 2.8 km (1.7 miles) east |
| Carn Brea | Hill | 2.8 km (1.8 miles) south-west |
| Cot Valley | Valley | 4.3 km (2.7 miles) west |
Air quality
| Pollutant | Here | UK limit | WHO guideline |
|---|---|---|---|
| Nitrogen dioxide (NO2) | 1.9 | 40 | 10 |
| Fine particles (PM2.5) | 4.7 | 20 | 5 |
| Particles (PM10) | 9.1 | 40 | 15 |
All three are within both the UK limits and the WHO guidelines.
Road and rail noise
| Level | Road traffic | Railways |
|---|---|---|
| 55 to 59 | 2 | 0 |
| Under 55 | 21 | 23 |
2 of the street's 23 addresses are modelled at 55 dB or more from road traffic, above the WHO guidelines.
Climate, daylight and earthquakes
Monthly temperatures and rainfall, sunrise and sunset through the year, and earthquakes recorded nearby since 1970 are much the same across the area, so they are worked out once for Cornwall: see them on the Cornwall page.
Nearest schools
No open schools within 2 km (1.2 miles).
Food hygiene ratings nearby
No rated food businesses within 500 m (0.3 miles).
Crime within 250 m
No crimes recorded at anonymised points within 250 m in this period (devon-and-cornwall).
People and work
Who lives here
| Around this street | England | |
|---|---|---|
| Median age | 56 | 40 |
| Children under 15 | 11% | 17% |
| Aged 65 and over | 32% | 18% |
Homes
| Around this street | England | |
|---|---|---|
| Owned (outright or with a mortgage) | 76% | 61% |
| Owned outright | 56% | 33% |
| Shared ownership | 0% | 1% |
| Social rented | under 1% | 17% |
| Private rented | 23% | 21% |
Work and commuting
| Around this street | England | |
|---|---|---|
| Adults (16 and over) in work | 52% | 57% |
| Unemployment (of those working or looking for work) | 4% | 6% |
| Retired (of adults) | 34% | 22% |
| Long-term sick or disabled (of adults) | 4% | 4% |
| Work mainly from home (of those in work) | 41% | 32% |
| Travel to work by car or van | 56% | 48% |
| By train, Underground, metro or tram | 0% | 4% |
| By any public transport, including bus | 0% | 8% |
| On foot or by bicycle | 2% | 10% |
| Work within 10 km (6 miles) of home (of those who travel to work) | 53% | 65% |
| Work 30 km (19 miles) or more away | 20% | 8% |
Education and languages
| Around this street | England | |
|---|---|---|
| Degree or other higher qualification, Level 4+ (of adults) | 41% | 34% |
| No qualifications | 10% | 18% |
| Apprenticeship as highest qualification | 7% | 5% |
| Main language English (aged 3 and over) | 99% | 91% |
| Cannot speak English well or at all | 0% | 2% |
Deprivation
The neighbourhood around this street is in decile 4 of 10 on the English Indices of Deprivation 2025, where 1 is the most deprived tenth of England's 33,755 neighbourhoods and 10 the least.
What has changed
Nothing new since the change feed started on 30 October 2026. New sales and energy certificates, and hygiene ratings, school inspections and flood figures nearby, will be listed here as the sources update.
Postcodes on this street
- TR20 8QX: 12 addresses of 15 in the postcode
- TR20 8QU: 8 addresses of 10 in the postcode
- TR20 8QP: 1 address of 24 in the postcode
- TR20 8QW: 1 address of 29 in the postcode
- TR20 8QY: 1 address of 24 in the postcode
Nearby streets
What this page cannot tell you
- Whether a particular house is at risk of flooding, subsiding or anything else: the flood map is a model of areas and there is no property-level data here.
- What a home is worth now: sales are historic prices for the homes that happened to sell.
- How safe the street is: crime points are moved to anonymised locations and many crimes are never reported.
- Whether you would get a place at a school: distances are straight lines, not catchments.
- Who lives on the street now: census figures describe the small areas around it in March 2021, during a lockdown.
- How long a journey takes or how often anything runs: transport distances are straight lines to the nearest stops.
- Whether a GP practice is taking new patients, or a dentist new NHS patients.
- How loud a home is inside, or noise from industry, neighbours or smaller airfields: noise figures are models of road, rail and air traffic outside.
How each figure on this page is matched to the street and worked out: methodology.