How IsoMap works

1. Search once. Type any place, postcode, station or borough, or drop a pin. Then say what it is to you: a home to check, another destination, or the only destination.
2. Destinations sit in the bar as chips, each with its own time limit. Click one to change its limit or remove it. With more than one, the map shows where every trip fits.
3. Set how and when: travel by, when, and what the map shows (Bands, Within max, Fit, Rent).
4. Filter with Living costs (buy or rent) and Near (stations, pools, tennis, big shops, parks).
5. Click any spot for its times by mode, its fit, costs and walks. Save the good ones to your shortlist.

Reset puts travel, time, view and filters back to the start. It keeps your destinations and shortlist. Copy link shares exactly this view.

The risk asks (avoid noise, air pollution, flood or crime) are rows in the Fit view. They are off until you give them a weight.

What needs the home engine

The step-by-step route in the details panel, and bike times to a pinned destination, need the home engine: a laptop that is usually off. Everything else is precomputed and always works.