Basalt House stepped into a coastal Icelandic hillside with an ocean-facing geothermal hot tub

Private feasibility dossier / 2026

Basalt
House

A five-bedroom retreat shaped by Icelandic weather, black stone and the line of the North Atlantic.

88505 bedrooms10 baths36 months
Enter the concept
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The proposition

A house that yields to the ground

Large enough to gather.
Quiet enough to disappear.

The house is conceived as three inhabited ledges rather than one object: a social pavilion above, private rooms within the slope, and a lower guest-and-water terrace. Local basalt, charred timber and planted roofs reduce its silhouette; deep reveals protect glass from wind and turn every room toward the landscape.

Rooms / 01—26

Every room has a horizon.

Twenty-six coordinated concept views describe the complete interior programme: social spaces, five bedrooms, ten bathrooms, service rooms and the geothermal terrace.

Whole-house plan / concept issue

Three ledges.
One continuous house.

885 m² gross internal area · 5 bedrooms · 10 bathrooms
Concept planning only—not construction drawings.

+01

Arrival & living

355 m² · social pavilion

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Private & wellness

350 m² · primary and guest suites

−01

Guest & water terrace

180 m² · lower landscape wing

Enclosed roomDeep terrace / planted roofPrimary view direction →

Site search / five zones

Within an hour.
Outside the everyday.

These are search areas, not available parcels. Every candidate requires landowner engagement and formal planning, hazard, access and utility due diligence.

01

Kjósarhreppur

South Hvalfjörður / Kjós

45–60 minfrom Reykjavík

Fjord, mountain walls, exposed rock and long water views—the closest match to the concept.

Highest visual potential; shoreline ecology, agricultural designation, wastewater and winter access lead the screen.

02

Ölfus

Þorlákshöfn / Ölfus

45–60 minfrom Reykjavík

Rugged Atlantic exposure, basalt, lava and open horizon with strong architectural compatibility.

Best planning lead: some defined rural-residential plots permit up to 1,000 m², but exact designation is essential.

03

Vogar

Vatnsleysuströnd

35–45 minfrom Reykjavík

Mossy lava, ocean foreground and Reykjanes light, close to Reykjavík and Keflavík.

Compelling but difficult: protected shore, lava, flood and volcanic constraints mean searching only where plans already support development.

04

Reykjavík municipality

Kjalarnes / lower Esja

25–35 minfrom Reykjavík

Esja, Faxaflói, farmland and rock slopes with the shortest connection to central Reykjavík.

Excellent convenience; an 885 m² private house needs an existing entitlement or clearly compliant rural planning route.

05

Mosfellsbær

Mosfellsdalur

25–40 minfrom Reykjavík

Mountain valley, rivers, birch and open agricultural land for a sheltered inland retreat.

The pragmatic access option; protect streams and wetlands, and verify the live plan, private road, water and wastewater parcel by parcel.

Non-negotiable site gates

Planning fitGeotechnical stabilityCoastal setbackYear-round accessWater & wastewaterGrid / geothermal strategy

Concept budget / ISK millions

Price the difficulty.
Protect the idea.

Base caseISK 2.815bn≈ €19.71m
WorkstreamLowBaseHigh
Land, legal & acquisition80m180m400m
Core building, envelope & services700m875m1,100m
Premium interiors, kitchen & 10 baths260m350m480m
Cliff works, retaining & foundations140m260m450m
Geothermal hot tub, spa deck & plant70m120m200m
Access, utilities, landscape & fire water90m170m300m
Loose FF&E, AV & smart home100m180m300m
Design team, QS & project management180m260m390m
Surveys, planning, permits & applications25m50m85m
Design & construction contingency230m370m610m
Total concept range1,875m2,815m4,315m

July 2026 order-of-magnitude client-cash allowance, approximately −30% / +40% at this stage. It includes 24% VAT where applicable, professional fees, a demanding cliff-integrated structure, premium interiors and contingency; financing and exceptional off-site works are excluded.

Orientation rate: EUR 1 = ISK 142.80, the Central Bank reference rate for 27 July 2026. Keep cost control in ISK and re-price after site control and at every design gate.

Delivery path / 30—36 months

Move quickly.
Never skip a gate.

The fastest credible path overlaps design, authority dialogue and procurement—but does not commit to construction before the ground is proven.

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Month 0–1

Brief & governance

Fix use, 885 m² room schedule, quality, ownership vehicle, funding, advisers and decision rights.

01
Month 1–4

Search & site control

Municipal pre-application meetings, desktop screens, landowner outreach and conditional heads of terms.

02
Month 3–7

Parcel due diligence

Title, survey, boreholes, coastal and natural hazards, ecology, archaeology, wastewater, utilities and access.

03
Month 5–9

Concept & cost plan

Massing, room stacking, landscape, structure, envelope, energy, hot-tub strategy and measured concept cost.

04
Month 7–16

Entitlement

Local-plan route, environmental screening, agency consultation, public process and planning conditions.

05
Month 10–18

Technical design

Coordinated architecture, structure, façade, services, fire, civil, landscape, lighting and permit package.

06
Month 15–20

Tender & procurement

Contractor selection, market test, value engineering and early orders for glazing, stone, joinery and spa plant.

07
Month 20–25

Ground & foundations

Access, temporary works, rock support, drainage, utility ducts, retaining walls and foundations.

08
Month 23–29

Structure & envelope

Primary structure, roofs, façades and glazing to the critical weather-tight gate.

09
Month 27–34

Fit-out & landscape

Services, joinery, stone, bathrooms, controls, hot tub, terraces, landscape repair and permanent access.

10
Month 34–36

Commission & hand over

Balancing, pool-water treatment, inspections, snagging, owner training and seasonal tuning.

Decision / next 30 days

Start with land,
not drawings.

Appoint a local architect and planning adviser. Score the five search zones. Secure access to the two strongest parcels under due-diligence conditions. Then spend money proving the ground.

  1. Issue site-search brief
  2. Commission planning pre-checks
  3. Prepare survey & ground-investigation scope
  4. Fix a concept-stage owner’s budget

Sources & limits

This is an early feasibility concept, not an offer of land, valuation, permit opinion or construction quotation. Drive times are indicative. Site eligibility, hazards, utilities, costs and tax treatment require professional verification.