Building terms in Crete: coverage, coefficient, height and the certificate that says what a plot can carry
Every Cretan plot comes with a handful of numbers — coverage, building coefficient, height, floors, distances from the boundaries — that decide how much house it can hold. Where those numbers come from inside a town plan, inside a village and outside both, how to get them in writing from the building office, and why the New Building Regulation's bonuses stopped working after the Council of State's rulings.
The size of a plot tells you very little about the house it can carry. The building terms do: a short list of numbers, fixed by law and by the local plan, that turn square metres of land into square metres of house. They are the first thing to read on any Cretan plot, before the price, because two plots of the same size can carry very different houses, or none. Rules as they stood in October 2026, checked against the Spatial Planning and Urban Planning Code (law 5306/2026), law 5197/2025, the Ministry of Environment and Energy and reporting on the Council of State’s rulings.
I am not a lawyer or an engineer, and this is not legal or engineering advice. Building terms are set plot by plot, and only the building office’s written answer, read by your own engineer, is worth relying on.
Building terms in one minute. Five numbers decide what a plot can carry: the coverage (the share of the plot built on), the building coefficient (times the plot area, it gives the floor area), the height, the number of floors and the distances from the boundaries. Since June 2026 the national rules sit in one Code, law 5306/2026. Inside a town plan the area’s own plan sets the figures, under a ceiling of 60% coverage. In a village core the coefficient falls from 1.6 on the smallest plots to 0.8 on plots of 300–2,000 m². Outside the plan the default is 10% coverage, a coefficient of 0.18, two floors, 7.50 m of height and 15 m from the boundaries, with a house capped at 186 m² on the first 4,000 m². The New Building Regulation’s bonuses were held unconstitutional by the Council of State (decisions 146–149/2025) and now apply only where a new local plan adopts them. Get the terms in writing from the building office.
The five numbers, and what each one does
In the Code’s definitions, coverage is the footprint of the buildings projected onto the ground, and the coverage ratio is the share of the plot it may take. The building coefficient is the number which, multiplied by the plot’s area, gives the total floor area. The maximum height is the level above which nothing may be built. The building line marks where building may start, and between it and the street line lies a front strip that stays open.
The arithmetic is unforgiving: a 400 m² plot with a coefficient of 0.8 carries 320 m² of floor area in total, however the floors are arranged. Some spaces, such as open balconies, do not count toward coverage.
Inside a town plan
Heraklion, Chania, Rethymno and the larger towns have approved plans that set the terms area by area, under national ceilings: coverage may not exceed 60%, though a small plot may cover up to 120 m² if that stays within 70%. A plot is buildable only if it meets the area’s minimum area and frontage; in areas planned after 1985 its buildable part must also take a footprint of at least 50 m² with a five-metre side. The building keeps set distances from the rear and side boundaries; in plans that cap height at 8.50 metres they may shrink, but never below 2.50 metres.
Inside a village without a street plan
Many Cretan villages have no street plan, only a settlement boundary. Under the Code’s rules for settlements, zone A is the historic core that existed before 1923, and zones B and B1 are the compact and the scattered parts built between 1923 and 1983. Boundaries fixed before 15 April 2025, when a new presidential decree on settlements was published, by a flawed method such as a radius around the centre must be redrawn.
In zone A coverage may reach 60% (80% on plots up to 200 m²), and the coefficient falls as the plot grows: 1.6 up to 100 m², 1.2 up to 200 m², 1.0 up to 300 m² and 0.8 from there to 2,000 m², with at most 400 m² built. In zones B and B1, a plot of 200 to 700 m² carries a house of at most 240 m², and a larger one at most 400 m². A new plot in the core needs 2,000 m², but plots that already existed on set dates in 1979 and 1981 qualify with 150 or 300 m². Many protected villages add rules on materials and form; those are in traditional settlements and listed buildings.
Outside the plan
Article 251 sets the countryside defaults: at least 4,000 m² and 25 metres of frontage on a public road, coverage of 10%, a coefficient of 0.18, two floors, 7.50 metres of height plus 1.20 metres for a pitched roof, and at least 15 metres from every boundary. A house is capped separately, at 186 m² on the first 4,000 m² under article 256; the size and road questions are in buying land to build in Crete. Where a general urban plan (ΓΠΣ) or a zone of residential control sets its own rules, article 250 lets them differ, with coefficient, coverage and height up to 10% more favourable. On a shared plot, your right is a share of one coefficient, as vertical and horizontal ownership explains.
The bonuses the Council of State took away
The New Building Regulation, law 4067/2012, offered incentives: extra floor area and height for less coverage or land given to public use in the largest cities, Heraklion and Chania among them, and 5–10% more floor area for the most energy-efficient buildings. The Council of State plenary held the incentives unconstitutional in decisions 146–149/2025, announced on 11 December 2024: building offices could not grant them plot by plot without a local planning study. The same rulings ended the exclusion from the coefficient of mezzanines and roof structures of up to 35 m², and the counting of a pool as planted area.
Law 5197/2025 followed. The incentives now apply only where a Local or Special Urban Plan adopts them through incentive zones, and a permit whose works had not started by 11 December 2024 is carried out only after a free revision removing them; where works had started, what was used stands. A further challenge, to presidential decree 94/2025 on an “environmental equivalent” for incentive permits, had been heard by March 2026. Anyone buying a new-build flat should ask whether the permit used incentives, and see the revision.
Local plans, and the certificate
Local Urban Plans (ΤΠΣ) are being drawn up under law 4447/2016, funded through the Recovery Facility, and the ministry’s tender list includes Apokoronas and Kantanos–Selino. A new plan can raise, cut or rezone the numbers for a whole area, so the terms themselves can change.
So the document to hold is a certificate of the building terms (βεβαίωση όρων δόμησης) from the municipal building office (ΥΔΟΜ), for the exact plot on a topographic survey. The Code gives it real weight: the old small-plot derogations survived only for owners who had applied in time for a pre-approval or for such a certificate. Have your engineer request it before the deposit, as part of the engineer’s check.
The honest downside
Building terms are a stack, not a number: a national Code, a local plan, a village boundary, a block decree and the overlays of forest, stream, shoreline and archaeology. Several layers were moving in 2026: village boundaries due to be redrawn, local plans in progress, the bonuses challenged again. A certificate states the rules on the day it is issued, and every figure in it is a ceiling, not a promise.
Disclosure: Honest Crete does not sell or list property. Enquiries sent from this section go to a licensed estate agent, not to us; the full statement is below. Nothing in this article names a developer, a project, an engineer or any other professional; the municipal building offices, the Ministry of Environment and Energy and the Council of State are named as the public institutions they are.
Worth it if you read the building terms before you fall for the view: a written certificate for the exact plot, read by your own engineer, turns a plot from a hope into a number. Skip it if the only evidence of what you can build is the seller’s sketch or the neighbour’s house, which may stand on rules, bonuses or a boundary that no longer apply.
What are building terms in Greece?
Building terms (όροι δόμησης) are the numbers that fix what can be built on a plot: the coverage, the building coefficient, the maximum height and floors, and the distances from the boundaries. Since June 2026 the national rules sit in the Spatial Planning and Urban Planning Code, law 5306/2026, while the figures for a given street or village come from its own plan or decree.
What is the building coefficient on a plot in Crete?
The building coefficient is the number that, multiplied by the plot's area, gives the total floor area allowed. Outside a town plan the default is 0.18, but a house is capped separately at 186 m² on the first 4,000 m² of plot. In the core of a village the coefficient runs from 1.6 on plots up to 100 m² down to 0.8 on plots of 300 to 2,000 m², with at most 400 m² built, and inside a town plan the plan sets it.
How do I find out what I can build on a plot in Crete?
Ask the municipal building office (ΥΔΟΜ) for a certificate of the building terms (βεβαίωση όρων δόμησης) for the exact, surveyed plot, and have your own engineer read it. The Code itself counted an application for such a certificate as one of two ways to keep an old small-plot building right alive. A listing, a sketch or the neighbour's house proves nothing.
Can I still use the NOK bonus to build more in Crete?
Not directly. The Council of State plenary held the New Building Regulation's extra floor area and height incentives unconstitutional in decisions 146–149/2025, because building offices granted them without a local planning study. Since law 5197/2025 the incentives apply only where a Local or Special Urban Plan adopts them through incentive zones.
What happens to a new building in Crete whose permit used NOK bonuses?
Under article 67 of law 5197/2025, a permit whose works had not started by 11 December 2024 can be carried out only after a free revision that removes the incentives. Where works had started, the incentives already used are not affected. A buyer of a new-build flat should ask which case applies and see the revised permit.
What is the maximum height of a house outside the town plan in Greece?
Under article 251 of the Spatial Planning and Urban Planning Code, a building outside the plan may rise 7.50 metres above the surrounding ground, plus 1.20 metres for a pitched roof, with at most two floors. The same article sets coverage at 10% of the plot and a distance of at least 15 metres from the boundaries, unless special rules for the area say otherwise.
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