Once you understand who can qualify as an owner, the next question is more practical:
Which owners in the building actually need to receive notice?
If the neighbouring building contains six flats, do you notify all six?
What about the freeholder?
What about the flat above?
The answer depends on which ownership interests are affected by the particular notifiable works.
Do not use a “notify everyone just in case” strategy
Over-serving can create unnecessary expense and confusion.
Under-serving can create procedural problems.
The objective is to identify the adjoining ownership interests relevant to the notifiable works.
Example 1: excavation next to a converted house
Suppose you build an extension immediately beside a three-flat converted house.
Section 6 excavation may affect the neighbouring building.
The ownership structure of that building must be investigated.
Relevant freehold and qualifying leasehold interests may need consideration.
Example 2: structural work between two flats
Suppose you own the first-floor flat and want to alter the structural floor separating your flat from the ground-floor flat.
That floor may be a party structure.
The owner below is clearly relevant, but the freeholder’s interest may also need consideration depending on the title structure and works.
Example 3: loft conversion above the top-floor flat
Structural work at roof level could affect:
- the party wall with the adjoining building;
- another leasehold interest;
- the freeholder; or
- several interests depending on the building configuration.
There is no substitute for looking at the actual titles and proposed works.
Example 4: one flat is far away from the works
A leaseholder on the opposite side of a large block may have no relevant Party Wall interest in a small localised structural alteration.
This is why blanket service is not always appropriate.
Freeholders
The freeholder owns the superior title and often the structural fabric.
Their interest must be considered carefully.
Long leaseholders
Long leaseholders may qualify as owners under the Act and cannot simply be treated as occupiers.
Short-term tenants
They may have rights as occupiers in particular contexts, but that does not automatically make them statutory owners requiring the initial notice.
Why architectural drawings alone are not enough
You need both:
- the construction information; and
- the ownership information.
The best Party Wall analysis overlays the two.
What happens if another owner is discovered after notices are served?
Deal with it promptly.
Do not ignore the ownership simply because other notices have already been served.
The project timetable may need adjustment.
Can multiple adjoining owners use one surveyor?
Potentially, owners may choose the same surveyor, but statutory appointments remain tied to the relevant parties and disputes.
No owner should be forced into an appointment arrangement simply because it is administratively convenient for the building owner.
Existing Simple Survey guidance
Read Party Wall Notices – Freeholders and Leaseholders Explained for the broader ownership framework.
The key point
There is no universal rule that every flat owner in a building must receive every Party Wall Notice.
The correct recipients depend on the statutory works and ownership interests affected.
Simple Survey can help
For blocks and converted properties, Simple Survey can review the title information alongside the proposed works and advise who should receive notice.
Visit our Party Wall Surveyor service to send us the project details.