Tree Preservation Orders in St Albans: how to check, how to apply, and what it costs if you do not

Nearly every expensive mistake we see in this district comes from the same assumption: that a tree in your own garden is yours to cut down. Sometimes it is. In St Albans, quite often it is not, and the penalty for getting it wrong is set per tree.

This is the plain version. It takes about ten minutes to read and it will save you either a fine or a wasted eight weeks.

The two rules people mix up

There are two separate things that protect a tree, and they work differently.

A Tree Preservation Order is placed on a named tree, a group or an area. Any work on a tree it covers, including pruning, needs written consent from the council before you start. It is an application, and it can be refused.

Conservation area status attaches to a place, not a tree. If your tree stands inside a conservation area and its trunk is more than 75mm across measured 1.5m up from the ground, you must give the council six weeks' written notice before any work. That is a notification, not an application, but during those six weeks the council can respond by slapping a Tree Preservation Order on the tree, at which point you are on the other track.

A tree can be covered by both, in which case the order takes precedence. A tree covered by neither is yours to manage.

Nineteen conservation areas, and one of them might be your street

This is where St Albans catches people out. The district has 19 conservation areas, which is a lot for its size, and they are not all where you would expect. The council names them individually alongside the St Albans area itself:

The St Albans area itself is subdivided on the national planning register into named character areas, including Verulamium, Romeland and the Abbey Gateway, Clarence Park, Fishpool Street, St Michaels Village, Sopwell Nunnery Ruins and Verulam Road. If your address is anywhere in the older parts of the city, assume the six-week notice applies until you have checked otherwise.

Note what is on that list that people do not expect. Cunningham Avenue is a twentieth century street. Napsbury is a converted hospital estate. Sleapshyde is a hamlet. Conservation area status is not a proxy for "looks old".

What it costs to get wrong

Three things worth understanding about those numbers.

First, "per tree". A row of five is five offences, and the maxima multiply accordingly.

Second, the liability follows the person who instructed the work as well as the person who did it. "The tree surgeon said it would be fine" has never been much of a defence. If a firm is willing to cut a protected tree without consent, their assurance is worth exactly what you would expect.

Third, "damage" is broader than people assume. Severe root damage from a digger, ring-barking, and heavy topping that a court accepts has destroyed the tree as an amenity can all count. You do not have to take a protected tree down to be in trouble over it.

How to check your own tree, free, in about ten minutes

1. Open the council's mapping service and turn on the planning constraints layer. It shows conservation area boundaries and Tree Preservation Orders against an address. Zoom in properly: boundaries follow property lines and can run down the middle of a street.
2. Cross-check the published TPO list. The council maintains a searchable list of order numbers. An order made in 1974 is as valid today as one made last year.
3. Look specifically for area orders. These cover every qualifying tree inside a drawn boundary rather than naming individuals. Nothing about your particular tree will look special, which is exactly why these are the ones people miss.
4. If you are anywhere near a boundary line, ring the council's tree team and ask. They would far rather answer a question than prosecute afterwards. Have the address and a rough description ready.

Start at the council's tree preservation orders page and the conservation areas list. The national guidance is at gov.uk.

The clocks, and why they matter to your build programme

• TPO application: up to eight weeks for a decision.
• Conservation area notice: six weeks from validation before work may start.
• Fast track: a decision by the end of the fourth week after validation, via the council's own fast-track service.
• Appeal: 28 days to take a refusal to the Planning Inspectorate.
• Dead or dangerous tree: five working days' written notice, and only the work needed to remove the danger.

The word "validation" carries weight in all of those. The clock starts when the council accepts the submission as complete, not when you send it. An application missing a plan, a photograph or a proper description of the work gets sent back, and you have lost the time.

Nothing makes these clocks run faster, and no amount of money changes them. If a firm offers to sort the paperwork out quietly, what they are offering is a criminal record with your name on it.

What actually gets consented

Councils refuse applications that boil down to "we would prefer it gone". They grant work that is arboriculturally justified. In practice, a strong application does four things:

• Describes the tree properly: species, size, condition, position.
• Names the actual problem, with evidence. A decay pocket, a split fork, a documented structural risk, a report from an engineer.
• Proposes the least drastic option that solves it. A 20 percent reduction beats a removal every time in the eyes of a tree officer.
• Where removal is genuinely unavoidable, offers a replacement, with species and position.

Reasons that rarely succeed on their own: light, leaf fall, sap on a car, birds, blocked satellite reception, roots lifting a patio you could relay, and "it has got too big". A tree being large is not a defect. It is a tree.

The dead and dangerous exemption

Where a protected tree is dead, work may proceed after five working days' written notice. Where it presents an immediate risk of serious harm, only the minimum work needed to remove that danger may be done, and the notice can follow the work rather than precede it, but it must still be given.

Two traps. The exemption covers removing the danger, not tidying up the rest of the tree on the same visit. And "dangerous" is a genuine legal threshold, not a description of how you feel about it. Take photographs before anything is cut: wide shot, close shot of the defect, something in frame for scale. That evidence is what makes the position defensible, and it takes half a minute.

Buying, selling and building

Protected trees turn up at the worst moment in three situations. A buyer's survey flags a large tree near the house. A lender asks a question about roots and foundations. A planning condition requires tree protection during construction. All three are answered far more easily with a written arboricultural position than with a phone call, and all three are cheaper to sort before exchange or submission than after.

The short version

• Check before you book anybody. It is free and it takes ten minutes.
• In a conservation area, six weeks' notice, on almost anything with a trunk over 75mm.
• With an order, a written application and up to eight weeks, or four through the fast track.
• Get it wrong and the maximum is £20,000 per tree, and it lands on you, not on the firm with the saw.
• Any firm that will not check the register before quoting is telling you something about how they work.

We check it on every job and put the answer in writing with the quote. More on how we handle protected trees, and if it is an emergency, the storm and dangerous tree page covers the exemption route in more detail.