Guides

Practical building advice.

Clear answers to the questions homeowners ask us every day about costs, permits, building methods and design choices.

Finance4 min read

Calculating the value of an extension

Calculating extension value means looking at extra floor area, improved layout, market demand and total project cost.

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Design4 min read

Dormer window or roof extension?

A dormer and a roof extension both add upstairs space, but they differ greatly in cost, impact and permit complexity.

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Rules5 min read

Zoning plans explained

The zoning plan sets local spatial rules that can affect where and how you may extend your home.

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Construction7 min read

Second-storey extension guide

A second-storey extension can add major space, but it is structurally and legally more complex than a rear extension.

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Construction5 min read

Converting a garage into living space

A garage conversion can create useful living space, but insulation, daylight and facade changes need careful planning.

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Rules7 min read

Care home rules in the Netherlands

Care homes on private property can be possible under Dutch rules, but the care situation and later use must be clear.

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Construction4 min read

Maintaining a home extension

A well-built extension needs little maintenance, but roof, gutters, seals and finishes still deserve regular checks.

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Rules5 min read

Neighbour rules for home extensions

Neighbours matter in extension projects because boundaries, access, privacy and nuisance can all affect the build.

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Rules6 min read

Building regulations for home extensions

A permit-free extension still has to meet Dutch building regulations for safety, health, energy and usability.

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Finance6 min read

Extend or move?

Extending and moving both solve space problems, but the financial and emotional trade-offs are very different.

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Sustainability5 min read

Making a home extension more sustainable

An extension is a chance to improve comfort and reduce energy demand, not just add floor area.

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Sustainability4 min read

Sedum green roof on an extension

A sedum roof can make a flat-roof extension more attractive, cooler and better for rainwater buffering.

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Costs5 min read

Dormer window cost overview

Dormer costs depend on width, roof type, material, finish and whether the dormer is prefab or bespoke.

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Construction4 min read

Underfloor heating in a home extension

Underfloor heating is a natural fit for many extensions, especially with good insulation and open-plan layouts.

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Design5 min read

1930s-style home extension

A 1930s-style extension should respect the original character while adding modern comfort and space.

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Design5 min read

Choosing sliding doors

Sliding doors shape how an extension connects to the garden. Material, threshold and glass size all affect daily comfort.

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Finance5 min read

Financing a home extension

Financing a home extension can be done through savings, a mortgage increase or a renovation loan. The right option depends on timing, equity and risk.

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Design4 min read

Rooflights for an extension

A rooflight can bring daylight deep into an extension and the existing room behind it.

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Design6 min read

Building a garden office

A garden office works best when it is designed as a real year-round workspace, not just a shed with a desk.

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Construction6 min read

Home extension step-by-step plan

A clear step-by-step process keeps a home extension manageable, from first idea to handover.

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Construction6 min read

Tips for choosing a contractor

Choosing the right contractor is about scope, communication and reliability, not just the lowest quote.

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Design5 min read

Bay window extension guide

A bay window adds character and daylight, but because it is often visible from the street, detailing and permits matter.

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Finance4 min read

How an extension can increase home value

A well-designed extension can increase home value, but the return depends on location, quality, layout and market demand.

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Design6 min read

Living-room extension guide

A living-room extension can transform how the home feels, but the success depends on light, flow and the connection between old and new space.

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Design4 min read

Conservatory or orangery

A conservatory and an orangery both add light and garden connection, but they differ in structure, comfort and architectural feel.

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Design5 min read

Prefab vs bespoke extensions

Prefab and bespoke extensions both work well, but for different homes and priorities. The right choice depends on shape, finish, speed and design freedom.

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Sustainability6 min read

Insulating a home extension

Good insulation makes a home extension comfortable, efficient and future-proof. The details matter as much as the insulation thickness.

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Costs10 min read

Home extension costs per m2 in 2026

A practical 2026 price guide for home extensions in the Netherlands, with realistic m2 ranges and the main reasons quotes differ.

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Construction5 min read

Foundations for a home extension

The foundation is one of the most important technical choices in a home extension, especially on Dutch clay and peat soils.

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Permits6 min read

Home extension permits: when do you need one?

Clear guidance on when a Dutch home extension is likely to be permit-free and when a municipal application is needed.

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