Roof Rights and Building Additions in Israeli Buildings

A buyer is offered a bright top-floor apartment in Netanya, and the agent mentions, almost in passing, that it comes "with the roof." The buyer starts picturing a penthouse level added later, a private terrace, perhaps a studio to let. It is a common daydream, and Israeli property law dismantles it more often than agents admit. Owning the roof and being allowed to build on it are two separate questions, and for an owner sitting abroad they are questions worth answering before signing, not after.

The same confusion runs the other way. An owner living overseas returns to find that the residents' committee has voted to let a neighbour expand into the shared space, or to add a floor, and wonders how that could happen without them. Both situations come down to the same body of law: Chapter 6 of the Land Law 1969, which governs the shared building, the bayit meshutaf. If you are still at the purchase stage, read this alongside our guide to property due diligence in Israel, because the roof question belongs in the tabu search, not in a hopeful conversation with the seller.

What Counts as Common Property

The Land Law draws a firm line between an apartment and everything else in the building.

Section 52 defines the common property (rechush meshutaf) as all parts of the shared building other than the apartments themselves: the land, the foundations, the external and load-bearing walls, the stairwells, the lobby, the lifts, and, importantly, the roof. Under Section 55 every apartment carries an inseparable share of that common property, sized by its relative floor area unless the building's bylaws say otherwise. You cannot sell your apartment and keep your share of the stairwell, and you cannot sell the share on its own.

There is one exception that matters here. Section 55(c) allows part of the common property, a roof or a yard for instance, to be "attached" (tzamud) to a particular apartment and recorded that way in the register. When people say an apartment "comes with the roof," this attachment is what they mean, and the only place to confirm it is the Land Registry extract (nesach tabu), not the sales brochure. If the roof is not attached in the register, it remains shared, whatever the seller believes.

Who Owns the Building Rights

Even when the roof is attached to one apartment, a second and less obvious question decides whether anything can be built on it: who owns the unused building rights.

Building rights, the unused floor area a planning scheme permits, are a creature of planning law, not a physical part of the roof. Israeli courts have settled the principle clearly. Building rights derive from ownership of the land, and because the land beneath a shared building is jointly owned by all the apartment owners, the unused rights belong to all of them in common, in proportion to their shares. Attaching the roof to one apartment under Section 55(c) does not hand that owner the rights to build on it. Those rights still sit with the whole building.

To give building rights to a single owner, in effect transferring an economic asset away from everyone else, the law requires the consent of all the other owners, or an express provision written into the building's takanon, the bylaws, and registered. This is why a buyer who pays a premium for "the roof" can discover that the penthouse they imagined needs the signatures of every neighbour they have never met.

In Practice: Section 55(c) of the Land Law 1969 lets the roof be attached to one apartment in the register, but the unused building rights above it are owned by all the apartment owners in common. Reallocating those rights to a single owner has to be recorded in an amended takanon signed by every owner and registered with the Land Registry (Tabu), a step that typically takes 4 to 8 weeks once every signature is gathered. On a mid-rise Tel Aviv building the rights to add a floor can be worth NIS 500,000 or more, which is precisely why a buyer who paid for the roof but not the rights ends up in a dispute rather than a construction project.

When Neighbours Can Build Over Your Objection

The law does not let a single holdout freeze a whole building forever, and this is where an absentee owner is most exposed.

Section 71B, added to the Land Law in 1995, allows the owners to permit one of them to make a building addition (harchava) even without unanimity. The threshold is a resolution supported by owners holding three-quarters of the apartments and two-thirds of the common property. That majority can approve an expansion, including attaching part of the common property to the expanding apartment, and it can bind an owner who voted against it. A narrower category, adding a protected room (mamad), can be approved by 60% of the owners. And an owner who has already expanded their own apartment is treated as having consented to a comparable expansion by a neighbour, which quietly erodes the objections of anyone who built first and complains later.

For an owner overseas, the danger is not that the rules are unfair but that they run on notice periods and meeting dates that arrive at an Israeli address while you are eight time zones away. A resolution passed in your absence is still a resolution.

Compensation and the Condominium Supervisor

Being outvoted is not the end of the story, because the Land Law pairs the majority power with a right to be made whole.

Section 71C entitles an owner whose share in the common property is reduced by an expansion, or who is otherwise harmed, to compensation from the owner doing the building. Disputes of this kind do not start in the ordinary courts. They go to the Supervisor of Condominium Registration (Mefake'ach al rishum batim meshutafim), a quasi-judicial official sitting at the Land Registry who hears arguments between apartment owners about the common property, expansions, and the bylaws, and who is faster and cheaper than the Magistrates' Court. The Supervisor can approve or block works, set the compensation, and resolve who pays for what.

In Practice: Under Section 71B of the Land Law 1969, owners holding three-quarters of the apartments and two-thirds of the common property can approve a neighbour's expansion over an objection, and Section 71C gives an owner whose share is reduced a right to compensation fixed by the Supervisor of Condominium Registration (Mefake'ach) at the Land Registry. A contested file before the Supervisor usually runs 6 to 12 months. An owner abroad who ignores the meeting notice can find the works approved and their compensation set at a few tens of thousands of shekels, when timely negotiation might have secured far more or preserved the rights entirely.

Consenting or Objecting From Abroad

Every step in this area assumes you are in the room, and most non-resident owners are not. The workarounds are routine but they have to be set up in advance.

You act through an Israeli lawyer holding a power of attorney that has been signed before a notary and apostilled in your home country, or executed at an Israeli consulate. That lawyer can attend the owners' meeting, cast or withhold your vote, negotiate the terms of an expansion, sign or refuse a takanon amendment, and file or defend a claim before the Supervisor. Just as important is the mundane part: because official notices land at the property's registered address, an owner overseas needs someone reliable collecting the mail, or a managing agent instructed to flag anything from the residents' committee or the Land Registry. Our guide to managing Israeli property from abroad covers how to keep that channel open so a fifteen-day or thirty-day window does not close before you have heard of it.

If the plan involves urban renewal rather than a single neighbour's expansion, a different set of majorities and a different statute apply, and the roof and its rights become central to the deal a developer offers; our guide to the tax on Tama 38 and pinui-binui for non-resident owners picks up that thread.

What Buyers Get Wrong About the Roof

The single most costly assumption in this area is made at the purchase stage, by buyers who never open the register.

Common Mistake: A non-resident buys a top-floor apartment believing the attached roof carries the right to build a penthouse, and pays a premium for it. The nesach tabu later shows the roof is attached under Section 55(c) but the building rights were never allocated, so they belong to all the owners in common. Using them now needs either unanimous consent or a three-quarters and two-thirds resolution under Section 71B, neither of which the seller could deliver. The buyer has paid, sometimes several hundred thousand shekels, for a view of a project they do not control.

Practical Checklist

• Read the nesach tabu before buying to see whether the roof is attached to the apartment under Section 55(c), and do not rely on the agent's description.
• Check separately whether the building rights have been allocated to that apartment in the registered takanon, because an attached roof does not carry the rights.
• Ask for the building's bylaws and recent owners' meeting minutes, so you know whether an expansion has been proposed or approved.
• Appoint an Israeli lawyer under a notarised and apostilled power of attorney to vote, object, or negotiate on your behalf.
• Arrange for someone in Israel to monitor mail sent to the property, so a notice period does not lapse while you are abroad.
• If your share of the common property is reduced by a neighbour's expansion, raise your compensation claim with the Supervisor rather than assuming the loss is final.

Speak With an Israeli Attorney

Roof rights and building rights are decided in the Land Registry and the building's bylaws, not in the seller's promises, and the time to establish what you own is before you sign or before an expansion is approved in your absence. We check the register and the takanon, tell you exactly what an attached roof does and does not carry, and represent owners abroad before the Supervisor of Condominium Registration.

Contact us for a confidential initial consultation.