Duncan Barclay (of @BathFood fame) built his latest Twitter alert service at Hacked 2.1 from newly released BANES planning applications data.

Jesse Stewart and Karolis Danilevicius scooped three prizes at Hacked 2.1 for Best First Timers, Hacker’s Choice (£300) and the Grand Prize (£500) by simplifying the huge amount of school admissions information the local authority presents to parents.

Adam Reynolds won the “City Life” category (£300) at Hacked 2.1 by showing a practical commercial use of open data. His charting tool is already helping a local food startup find potential customers with food standards ratings.

Following up on our preview from last week, we’re now pleased to announce the launch of our Bath Historical Maps project.

Mark Lawson and his son Sam tried a novel way to visualise air quality in Bath.

Jurnyz by Simon Starr, Jordan Elver and Liam Richardson takes a different look at air quality by helping people understand how their own behaviour affects pollution.

Our Air Quality hack winners scooped £550 for “Fourcast”. Here’s what Adam Reynolds, Ashton Clapp and Steven Borrie (aka Team Slackers) made.

Leigh Dodds won Most Educational prize (£150) by using R to show the effects of wind, time of day and seasonality on pollution in Bath.