Trowley Bottom Trowley Bottom, Dacorum

Sales on this street

Source: HM Land Registry Price Paid Data, sales registered up to 28 August 2026, loaded 28 October 2026. Sales reach the register two weeks to two months after completion, so the last two months are incomplete. Matched by postcode and street name.

House prices and rents in Dacorum

A typical home in Dacorum cost £450,935 in August 2026, 0.1% more than a year before. That is 8% more than five years earlier and 21% more than ten years earlier.

Private renters in Dacorum paid £1,613 a month on average in September 2026, 2.5% more than a year before. That is 28% more than five years earlier.

Sources: UK House Price Index (HM Land Registry, with the ONS and the Welsh Government), to August 2026; ONS Price Index of Private Rents, to September 2026. Figures for the whole council area, not this street. The typical price is adjusted for the mix of homes that sold, so it is not the value of any one home; the street's own sales are above. Rents are the average paid on all private tenancies, new and existing, so they move more slowly than rents being advertised.

Energy performance certificates

Source: Energy Performance of Buildings Register (MHCLG), register as at 1 November 2026. Latest certificate per address; certificates last ten years, so the oldest here dates from July 2014 and some homes have none. Address data © Ordnance Survey and Royal Mail, shown for understanding the energy efficiency of buildings only.

13 homes with a current certificate; median floor area 185 m². Most common: House, detached (5); House, semi-detached (4); House, mid-terrace (2). Built: before 1900 (7); 1900-1929 (2); 2018 (1). Tenure at assessment: owner-occupied (11); rented (private) (1).

Council tax

What each band costs in Dacorum in 2026-27: Band D £2,409 a year on average, including the police, fire and any county and parish charges.

Homes by band in the neighbourhood around this street: most are in band G (26% of about 530 homes).

Sources: Valuation Office Agency, Council Tax: stock of properties, homes at 31 March 2026 (counts rounded to the nearest 10), for the neighbourhood (census area of about 700 homes) around it, not just this street; Ministry of Housing, Communities and Local Government, council tax levels 2026-27. Bands are charged as fixed shares of Band D; the actual bill depends on the parish and on discounts such as the single-person discount. Check a home's own band with the official council tax band checker.

Planning and heritage

• Conservation area: no postcode centre in this street's postcodes is in one.
• Listed buildings on or by this street: 1.
• 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: yes, Dacorum.

Listed buildings

• ROSE AND CROWN PUBLIC HOUSE, grade II

Source: planning.data.gov.uk (Ministry of Housing, Communities and Local Government), compiled from councils and, for listed buildings, Historic England's National Heritage List. Conservation areas, Article 4 directions, tree preservation areas and the green belt are checked at each postcode's centre. Listed buildings and protected trees are counted on or by this street. Councils publish Article 4 directions, tree preservation orders and brownfield registers to different standards, and some not yet. Planning applications are not here: there is no national open record of them yet.

Roadworks

Planned, as of 31 October 2026

• 1 February 2027: THAMES WATER, Utility repair and maintenance works, road closure, on the carriageway (major (paa) works)
• 1 February 2027: THAMES WATER, Utility repair and maintenance works, road closure, on the carriageway (major works)

Finished in the last three months

• 10 August 2026: THAMES WATER, Utility repair and maintenance works, road closure, on the carriageway (major works)

Source: Department for Transport, Street Manager open data, permits and works up to 31 October 2026. It is published once a month, so works arranged or started since then are not shown, and dates are the ones planned unless the works have started or finished. Emergency works are often permitted after they begin.

Flood risk

Rivers, the sea or surface water: in this street's postcodes, 12 addresses are in areas at high risk, 3 at medium risk and 3 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.

Groundwater flooding is possible in 5 of these postcodes: an address there is in a groundwater flood alert area.

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.

Recorded floods

No recorded flood covers the centre of any of this street's postcodes.

Recorded floods are where floodwater was seen or surveyed after a flood. Many floods were never mapped, an outline over a postcode's centre does not mean every home in it flooded, and homes outside one may have. Ask the seller whether the home itself has flooded.

Sources: Environment Agency Recorded Flood Outlines; Environment Agency Flood risk: postcode search tool data (loaded 29 October 2026), Risk of Flooding from Rivers and Sea: postcodes in areas at risk (loaded 29 October 2026) and Flood Map for Planning (loaded 28 October 2026). Flood zones are checked at each postcode's centre point. These are models of areas, which their publishers say are not suitable for showing whether an individual property is at risk, and they do not cover flooding from sewers or drains. Check an address on the official long-term flood risk service.

© Environment Agency copyright and/or database right 2026. All rights reserved. Some features are based on digital spatial data from the Centre for Ecology & Hydrology, © NERC (CEH); the postcode data is produced in part from PAF® and Multiple Residence Data, © Royal Mail Group Limited.

Storm overflows

No storm overflow outlet is within 1 km (0.6 miles) of the street's postcodes.

Source: Environment Agency, Event Duration Monitoring storm overflow annual return for 2025, from the water companies' monitors on each overflow in England, Open Government Licence. Distances are from the nearest postcode centre to each overflow's outlet. A year's figures are published the following spring; a monitor that worked for less of the year undercounts.

Coal mining

No postcode centre on the street is in a coalfield: the Mining Remediation Authority records no coal mining risk here.

Source: Mining Remediation Authority (formerly the Coal Authority), development high and low risk areas, Open Government Licence. Checked at each postcode's centre, so a home near the edge of an area may differ. It covers coal mining only, not other mining (such as tin, lead, iron or chalk), and is no substitute for a coal mining search. About the risk areas.

Historic landfill

2 historic landfill sites are within 500 m (0.3 miles) of the street's postcodes, the nearest 470 m (0.3 miles) away.

Closed tips can give off gas (methane and carbon dioxide) and leak into the ground for years. An environmental search, which conveyancers usually order, looks at landfill and contaminated land around the home; the council keeps a register of land it has found to be contaminated.

Sources: Environment Agency and Natural Resources Wales, historic landfill sites (places where waste was put into or onto the land and no environmental permit is now in force), Open Government Licence. Distances are from the nearest postcode centre to the edge of each site as mapped; the outlines and dates come from old records and can be approximate. Landfill still operating is not included.

Height above sea level

The street's 27 addresses are between 116 m and 118 m above sea level (117 m on average).

Source: Ordnance Survey, OS Terrain 50, July 2026: the height of the ground on a 50 m grid, read at each address, in metres above Ordnance Datum (mean sea level at Newlyn). It is the lie of the land, not floor or threshold levels, and is accurate to a few metres. Being low-lying is not in itself a flood risk; the flood section above says what the flood maps show.

Broadband

Source: Ofcom Connected Nations, data as at January 2026. Percentages are of premises in each postcode that can get the service, not take-up or speed achieved.

Getting around

Sources: Department for Transport, NaPTAN (every public transport stop), as at 31 October 2026; Office of Rail and Road, Estimates of station usage 2024–25 (which stations are on the National Rail network, and their journeys: entries and exits in the year to March); OurAirports (public domain, kept by volunteers); car parks and charging points from Overture Maps Foundation, release 2026-10-21.0, which gathers business listings from Meta, Microsoft, Foursquare and others: not an official register, so some will be missing, private or out of date. Distances are straight lines from the middle of the street, not routes, and say nothing about how often anything runs. Stations opened since the end of ORR's year appear when ORR publishes the next one, each December; heritage railways are left out.

Local services

Sources: NHS Organisation Data Service, as at 31 October 2026: GP practices, community pharmacies and dental practices with an NHS contract, open now, each placed at the centre of its postcode; hospitals are NHS trust and Welsh health board sites named as hospitals, and may not have an emergency department. Ratings and care homes: Care Quality Commission, latest ratings as at 2 November 2026 (England only; the CQC does not rate dental practices, and Wales's inspectorates give no ratings). Police stations and cash machines from Overture Maps Foundation, release 2026-10-21.0, which gathers business listings: not an official register, so some will be missing or out of date. Distances are straight lines from the middle of the street. Nothing here says whether a practice is taking new patients or a dentist new NHS patients.

Parks and green space

Source: Ordnance Survey, OS Open Greenspace, April 2026: public parks and gardens, play spaces, playing fields and allotments, with their entrances. Distances are straight lines from the middle of the street to a site's nearest entrance (or its edge where none is recorded), not walking routes; sizes are the area OS maps for each site. Some sites, such as school playing fields, may not be open to the public.

Landmarks

The nearest historic landmark is Church of St Leonard, a listed building (Grade I), 700 m (0.4 miles) north-east. 32 listed buildings are within 1 km (0.6 miles), 1 of them Grade I and 1 of them Grade II*.

Sources: Historic England's registers through planning.data.gov.uk (MHCLG), and Cadw through DataMapWales (Welsh Government): World Heritage Sites within 10 km (6.2 miles), battlefields within 5 km (3.1 miles), registered parks and gardens within 3 km (1.9 miles), scheduled monuments within 2 km (1.2 miles), and Grade I and II* listed buildings within 1 km (0.6 miles). Ordnance Survey, OS Open Names, October 2026: named hills, valleys, lakes, woods, wetlands and coast (it has no rivers). Distances are in a straight line to the middle of each site, and being on a register does not mean there is public access.

Air quality

Source: Defra, modelled background air pollution, annual means for 2024, for the 1 km square that holds the middle of the street. These are background levels, away from the kerb: beside a busy road nitrogen dioxide in particular can be several times higher. UK limits are the legal annual limits for England and Wales; the World Health Organization's 2021 guidelines are much stricter, and most towns and cities are above them.

All three are within the UK legal limits; PM2.5 is above the WHO guideline, as in most towns and cities.

Road, rail and aircraft noise

Source: Defra, strategic noise mapping Round 4 (England), modelled for 2021 and published in December 2023, and its airport maps of the same round for the fifteen largest English airports, published in April 2026: Lden, the average sound level over a whole day with extra weight for the evening and night, on a 10 m grid, read at each address. These are models of traffic, not measurements; they leave out smaller airports and airfields, industry and neighbours, and a room at the back of a house is often much quieter than the front. The World Health Organization's guidelines are 53 dB for road traffic, 54 dB for railways and 45 dB for aircraft (below the lowest level shown here).

13 of the street's 27 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 Dacorum: see them on the Dacorum page.

Nearest schools

Source: Get Information About Schools (Department for Education), 4 November 2026; Ofsted monthly management information as at September 2026. Distances are straight lines from the middle of the street to the school; catchments and admissions are not shown. Since November 2025 Ofsted gives report-card grades by area, not one overall grade; older grades stand until a school is re-inspected.

Food hygiene ratings nearby

Source: Food Standards Agency, Food Hygiene Rating Scheme, extract of 4 November 2026. Each rating is shown with the date it was given; a business may have been re-inspected since the extract. Within 500 m (0.3 miles) of the middle of the street.

Crime within 250 m

Source: data.police.uk street-level crime, September 2025 to August 2026. Police forces move every crime to the nearest of about 760,000 anonymised map points before publishing, so these are crimes near this street, not on it, and a busy point can collect crimes from a wider area. Counts are of records, not convictions.

Most of these are attached to: On or near White Hill (5).

Road safety

Source: Department for Transport, road safety data (STATS19), collisions in 2021 to 2025, as published by November 2026. Collisions in which someone was hurt and which were reported to the police, within 150 m of the middle of any of this street's postcodes, or of the street. Severity is the worst injury as the police recorded it.

No collisions in which someone was hurt were reported on and around the street in 2021 to 2025.

Only collisions in which someone was hurt and which the police were told about are here: damage-only collisions and near misses are not, and some injuries are never reported. Positions are recorded by the police, usually to within a few metres. Each year's figures are published the following September.

People and work

Source: ONS Census 2021, taken on 21 March 2021, for the Output Area (a small census area of about 125 households) that this street's postcodes are in: 331 residents in 126 households. The census was taken during a lockdown, so working from home is high and travel to work low compared with now. ONS swaps a few records between neighbouring areas and adds small amounts of noise to counts to protect privacy, so small differences mean little. Industry is not published for areas this small.

Who lives here

Homes

Work and commuting

Education and languages

Deprivation

The neighbourhood around this street is in decile 8 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.

Source: English Indices of Deprivation 2025 (Ministry of Housing, Communities and Local Government), by LSOA (about 1,500 people), through the ONS Postcode Directory. The index combines income, employment, health, education, crime, housing and living environment; it ranks areas against each other and does not describe any one household. Ranks in England and Wales are worked out separately and cannot be compared.

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.

Everything that has changed on and near this street

Postcodes on this street

Source: ONS Postcode Directory August 2026, ONS UPRN Directory September 2026, OS Open Linked Identifiers September 2026. A postcode can cover more than one street; the share shows how many of its addresses are on this one.

• AL3 8DU: 8 addresses
• AL3 8DW: 7 addresses of 8 in the postcode
• AL3 8DR: 6 addresses
• AL3 8DP: 3 addresses
• AL3 8DY: 3 addresses

Nearby streets

White Hill · Chalkdell Cottages · Linnins Pond · Pietley Hill · Trowley Hill Road

All the streets in AL3 and across Dacorum.