Every number on a report comes from a public body's own published data, or, for the planes overhead, from community flight tracking checked against the CAA's monthly totals, with the source and its date printed beside it. Nothing is estimated by us unless it says so.
Aircraft noise for one address
What the official noise map says at a postcode, and which published approach or departure route passes it, how close, and how high the aircraft are there.
- Aircraft noise at the postcode against the WHO guideline of 45 dB
- The nearest published routes, with the aircraft's height on the glide path
- How the postcode compares with its neighbours in the same district
- A map of the routes round it, from the official aeronautical publication
- The planes overhead a day, by which way the airport is flying, where we count them
- Road noise and the air at the postcode, against the WHO guidelines
For: buyers and renters (free for your own home), buying agents and relocation firms, conveyancers and surveyors (prices).
Air and noise summary for an area
The official figures for the streets you name, side by side: air quality, road noise and the nearest runway, with the area's place among the 97 council areas we compare.
- Nitrogen dioxide and fine particles against the WHO guidelines, street by street
- The share of the area's postcodes above the WHO road-noise guideline
- Distance and direction to the nearest runway for each street
- Where the area ranks for air quality and road noise
For: residents' groups, for a funding bid, a consultation response or a meeting. Free.
Published sources
DEFRA's noise and air maps, the aeronautical publications the routes are drawn from, and the Environment Agency's flood map. The planes overhead are counted from community flight tracking, only for airports whose counts check out against the CAA's monthly totals. Each figure carries its source and date.
Checked before it leaves
The checks that gate the website run on the data a report reads: the flight routes are rebuilt from the published aeronautical information and checked on every release, the noise map's colours against DEFRA's own, and an area's flood figures against the Environment Agency's own service.
Honest about estimates
Where the noise map has no reading for a street, the report says so and shows our estimate from the published routes as an estimate, never as a measurement.
What it does not say
How often aircraft fly each route: the official files say where the routes are, not their traffic, and the planes overhead are counted at the postcode, never per route. And nothing about a property we have not measured.
Free for your own home, read on screen, and free for residents' groups. Firms pay per report and councils per study, and every price is on the pricing page. A report is not a conveyancing search or a survey and does not replace either. Street reports cover the city regions on the map; an area summary can also cover an area the API previews, such as Greater Norwich in the sample.