Japanese knotweed
A management plan in the pack has no plan drawing of where the stands were. What location has the survey not been able to check against the garden?
The location the survey has not been able to check is where the stands were. The management plan in the pack has no plan drawing of those stands. Without a drawing, the paper cannot be walked against the garden. The survey has the plan as a document and has the garden as it was seen. It has not been able to match a plotted position to a bed, a fence line, or a corner. The missing map is the missing check.
Last reviewed 24 October 2026. Written for buyers in England and Wales unless this answer says otherwise. No named surveyor has signed this page. It is general guidance, not a report on your house, and not legal advice.
What is the fuller explanation?
A knotweed management plan is meant to say what was treated and where. If it has words but no drawing, the where is a sentence you cannot pin to the ground. The surveyor can look at the beds that exist today. They cannot confirm that those beds are the stands the plan describes, because the plan never drew them. That is a limit of the paper, not a finding that the garden is clear or that knotweed is still active.
Ask the solicitor for a plan drawing that shows where the stands were, and do not pretend this survey has checked locations the drawing omits. If the contractor who wrote the plan can supply the map, that is a document chase. Keep the garden inspection and the incomplete plan as two things. Do not tell a lender the stands have been verified against the ground.
What should you ask your surveyor?
- Does the management plan contain any drawing of the stands?
- Which parts of the garden could you not match to the plan?
- What location is therefore unchecked?
What are the typical next steps?
- Ask the solicitor for a drawing that shows where the stands were.
- Do not tell a lender the stands have been verified against the garden.
- Keep today's look at the beds separate from the incomplete plan.
Costs vary with the building and with who you instruct. Where this page does not cite a published figure, ask the surveyor, a relevant specialist, or your solicitor for a written quote. Do not treat a forum average as the price.
Also asked about this
If the plan names a contractor, has the location of the stands been checked?
No. A contractor's name on the plan shows who claims to have managed something. It does not show where the stands were, and the survey has not been able to check that location against the garden. The missing drawing is still missing. A letterhead is not a map.
Can you walk the beds and still have no drawing to set against them?
You can walk the beds, and the survey could look at them. You still cannot check them against stands the plan never drew. The location remains unchecked. Looking at today's garden does not reconstruct a map that is not in the pack.