How it works

How Tree Atlas works, from the site visit to the signed report

Record each tree on site from a photo, online or not. Check the survey at your desk, then sign and send the BS 5837 report, Tree Constraints Plan, schedule and DXF. Share the job with your crew. One survey, no retyping.

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Cancel any time
Works offline
Data stays in the EU

Two arborists comparing a site map on an iPad and a tree record on an iPhone in Tree Atlas

Step 1

Record on site, photo first, with or without signal

Take a photo and the tree is placed by GPS. Species is suggested from the photo, and is never saved until you confirm it. Measurements, condition and voice notes go straight onto the record.

Trees, photos, measurements and voice notes are saved on the phone and upload when you are back in signal.
Speak, press Stop, and the voice note is transcribed. Transcription can be turned off.
Save and next carries the last tree's values forward, and Undo brings back a tree saved by mistake.

Tree Atlas on iPhone, editing a tree: a single stem of 240 mm giving a root protection area of radius 2.88 m and 26.1 m², height 9 m, the crown spread on four sides, and buttons to take or upload a photo.

Step 2

Placed on the map, inside the site boundary

Each tree goes on the site map with its label, category and number, such as A·T1 or U·T5. Place a tree precisely from GPS, by offset or from a nearby map feature.

The boundary comes from an address: Ordnance Survey plot boundaries, or walk the perimeter, or draw it on the aerial map.
Split a big estate into 50, 100 or 150 m sectors. Groups, woodland and hedges too.

Tree Atlas on iPhone, the site map: the site boundary over Ordnance Survey mapping, trees labelled by category and number such as A·T1, B·T2, C·T4 and U·T5, and below it the list of seven trees, one off-site, with their stem diameters.

Step 3

Measurements in, the RPA and category proposed

Stem diameter, height, crown spread north, east, south and west, life stage and condition. The root protection area is worked out from the stem as you type, multi-stem too, and a BS 5837:2012 category is proposed from your condition, life stage and measurements. Your override is final.

The rule version is stamped on every tree and report, and the method is set out in the report appendix.
Type in feet and inches if you prefer; reports always stay metric.

Try the RPA calculation in the free RPA calculator

Tree Atlas on iPhone, tree A·T1, an English oak: stem diameter 300 mm, crown radius 3.5 m and root protection area radius 3.60 m, category A, placed by offset to within 0.5 m, not yet signed off, with its measurements below.

Step 4

Review at the desk, then sign it off

Surveyors capture. Reviewers check. You sign, on the web desk. Before you sign, see exactly what changed since the last signed revision, tree by tree. Nothing goes out under your name until you've signed it off.

Revisions go Draft, In survey, Signed. Signed revisions are kept exactly as issued.
Roles for owner, surveyor and reviewer.

An illustration with sample trees, not a screenshot.

Step 5

Reports and plans from the same records

Preview, sign and download. The report has a cover, revision block, schedule and method appendix. Your client receives the report and Tree Constraints Plan as PDFs, and a DXF for their CAD.

PDFBS 5837 report
PDFTree Constraints Plan
CSVTree schedule
DXFCAD by category

Download a sample report PDF

A Tree Constraints Plan from Tree Atlas, marked DRAFT: the site boundary with trees labelled by category, their crowns and root protection areas, a north arrow and a 1:1000 scale bar, beside the tree schedule, the key, the notes and the title block.

Step 6

Share the job with your crew

On a site, Site details › Share job gives you a link and a QR code. Your crew opens the job without an account: the map, directions and the work tree by tree. Once opened, it works with no signal.

Customer contact and tree notes are shared only if you switch them on, and you can cancel a link at any time.
Turn recommendations into tasks with due dates, reminders and repeats.

Tree Atlas for tree work

The Tree Atlas web desk on Tasks: five open jobs for the team, such as crown reduce oak by 2 m on tree T1 due Wednesday and fell dead birch, grind stump on T2 due Thursday, each with its site, the person it is assigned to and when it is due.

Survey your next site with Tree Atlas

Solo is £49 a month plus VAT (£58.80 including VAT) after a 30-day free trial. No card is needed to start.

No card
Cancel any time
Works offline
Data stays in the EU

Start your 30-day free trial See pricing