All the room
for your questions.
Clear explanations to help you choose. From exploring ideas to preparing your extension.
56 topics found
More space. The same home.
Make room for a kitchen-diner, a larger living area or a workspace while staying in your neighbourhood. See how external dimensions, usable space, daylight and preparation combine in a practical extension.
PossibilitiesLive indoors. Feel outdoors.
A bright garden dining room or a sheltered space for spring and autumn: intended use determines the right glazed extension or garden room. Compare glazing, ventilation and shading before choosing the form.
PossibilitiesYour own place. Loved ones nearby.
A separate front door close to family can make a real difference. Design a care dwelling around its occupant, with privacy, practical circulation and facilities that can adapt as needs change.
PossibilitiesYour own place in the garden.
A garden office, hobby room or guest space needs more than an attractive shell. Define its use first, then plan access, services, comfort and its relationship with the house.
PossibilitiesMore room, on two levels.
A downstairs kitchen-diner and extra upstairs space can form one extension. With two storeys, foundations, structure, access and permissions belong in the same design from the outset.
PossibilitiesA calmer home starts in the utility room.
Give laundry, supplies and outdoor belongings a permanent home. A prefab utility room works best when appliances, storage and the kitchen-to-garden route are planned to scale before construction.
Costs & preparationWhat will your extra living space cost?
What will the extension you actually want to use cost? Compare the full breakdown: dimensions, facade, doors, roof, interior finishes and work to your existing home. Turn an initial figure into a usable budget.
Prefab AanbouwPeace of mind. Room at home.
An extension is easier to manage when you know which decisions are needed when. Follow the route from initial sketch to survey, detailed design, preparation, installation and a carefully checked handover.
Materials & comfortAn appearance that suits your home.
Brick, timber, cladding panels and frame colours create the overall appearance. Compare detailing, ageing and upkeep too, so the extension continues to suit your home beyond its first summer.
Costs & preparationFirst, know what is allowed.
Whether your extension needs permission or notification depends on its address, position and design. Gather the relevant information and check both the technical building rules and spatial planning requirements.
Materials & comfortMore room, comfortable living.
An extension should feel comfortable on a cold morning and a hot summer day. Consider insulation, airtightness, glazing, ventilation and heating together, including their connection to the original house.
Costs & preparationPrefab or traditional extension?
Prefab shifts work to preparation and the factory; traditional construction involves more site work. The right approach depends on your home, access, design and how early decisions can be finalised.
Costs & preparationHousing wishes with a realistic budget.
Prepare a complete construction budget before comparing finance. Include work to the original house, finishes you arrange and a reserve, so your independent adviser discusses the same plan.
Prefab AanbouwRoom for your next chapter.
Prefab Aanbouw helps turn home ideas into a concrete plan through clear guidance, an adjustable 3D design and a cost breakdown. Based in Halfweg, we can be reached by phone to discuss your plans.
BusinessCreating more living space together.
A good extension plan connects design with delivery. Discuss a concrete collaboration with clear roles for drawings, engineering, production, installation and client communication.
Living ideasA living room with room for life.
A larger living room starts with the sofa, dining table and circulation. Use additional space without turning the original room into a dark passage.
Living ideasWarm timber. Individual character.
A timber extension can add warmth and calm to your home. Compare species, profile, finish and detailing together, considering how the facade will age.
Living ideasDaylight, exactly where you want it.
A rooflight can bring daylight deeper into your home. Its position depends on the original facade, layout and sun: decide where light is needed before choosing its shape and size.
Living ideasOpen your home to the garden.
Sliding doors open views to the garden without a door swing. Compare total glazing width with the actual opening, threshold, operation and fixed panel position.
Living ideasTwo doors. A new connection.
French doors give an extension a defined opening and a distinctive facade. Coordinate door width, sidelights and swing direction with the interior and terrace.
Living ideasMake the back of your house its new heart.
A rear extension can reconnect kitchen, living room and garden. Consider indoor gains alongside the terrace, greenery, access and privacy you want to retain outside.
Living ideasMake good use of the space beside your home.
Space beside the house can become a utility room, office or living area. Start with access and boundaries, then choose a layout that connects naturally to the existing home.
Living ideasA comfortable place between home and garden.
A garden room adds shelter from wind and rain while retaining an outdoor feel. Decide whether it is for mild-weather use or winter working: that choice shapes almost everything.
Living ideasA home that suits you for longer.
Sleeping and showering downstairs can keep your home usable for longer. Plan around daily tasks and future changes, with privacy and a practical link to the living room.
Living ideasA green roof above your new space.
A green roof changes the view from upstairs. First check that structure, waterproofing and drainage suit the chosen planting system and its maintenance needs.
Costs & preparationWhat could an extension add to your home’s value?
An extension adds living space, but construction cost and property value are different. Calculate usable added space, compare value scenarios and check the assumptions against your home.
Costs & preparationHow much living space does your extension add?
External dimensions describe the space occupied on the plot; internal dimensions show what fits. Simple examples explain the difference before you plan the layout and possible value effect.
Costs & preparationThe technical details behind your extension
Clear specifications turn your design into checkable agreements. Record dimensions, wall build-up, glazing, services and finishes, including connections to the existing house.
Costs & preparationA sound foundation for your extension
Foundations must suit the loads, ground and existing house. Investigate both the bearing conditions and the connection between old and new, including access for construction.
Living ideasPrefab chalet: start with its location and use.
A prefab chalet starts with a clear permitted purpose: recreation, accommodation or another use. That gives layout, insulation, transport and site services a sound basis.
Living ideasTurnkey extension: agree what finished means.
Turnkey is meaningful only when you know what is finished at handover. Compare shell, interior finishes and connections separately, and record the work you will still arrange.
Living ideasChoosing a contractor for your extension.
A suitable contractor makes the approach, responsibilities and quotation understandable. Compare experience with your house type and ask how preparation, changes and handover items are managed.
Living ideasAn affordable extension starts with considered choices.
An affordable extension starts with what you truly need. Reduce unnecessary complexity and postpone optional finishes while properly designing foundations, structure and connections.
Living ideasA glazed extension roof: balancing light and comfort.
A glazed roof brings the sky into the interior. Balance that openness with sun exposure, overlooking, cleaning and the lighting needed after dark.
Living ideasAn extension that suits your farmhouse.
Extending a farmhouse requires attention to scale, materials and the yard. Investigate use, structure and any heritage protection before settling its appearance.
Living ideasAdding a bay: more light at the facade.
A bay window can add depth to a facade and create a bright seat. Its compact size makes foundations, glazing divisions, roof edges and usable space particularly important.
Living ideasExtending a 1930s home.
Preserve your 1930s home’s proportions and character while adding space. Beyond brickwork, window divisions, door heights, roof edges and daylight shape the result.
Living ideasExtending a 1950s home.
A 1950s home may benefit greatly from a better kitchen-to-living-room connection. Investigate the existing layout and services before deciding how much space is needed.
Living ideasExtending a detached home.
A detached house may offer several extension directions. Compare rear and side positions for layout, sun, garden space, access and their relationship with existing facades.
Living ideasA prefab multigenerational home: together and independent.
Living together on one plot needs a clear balance between independence and shared facilities. Work through circulation, privacy and permitted use before choosing a multigenerational prefab home.
Living ideasA bedroom and bathroom in your extension.
A downstairs bedroom and bathroom can change your home’s future. Start with the route from the living room, then plan privacy, plumbing, ventilation and clear space.
Living ideasA prefab senior home shaped around daily life.
A prefab senior home starts with everyday comfort: clear routes, manageable windows and doors, a practical bathroom and room for later adaptations.
Living ideasPlanning a care unit beside your home.
A care unit should suit its occupant, support needs and plot. Prepare space and services around privacy, daily use and access to the main house.
Living ideasA prefab storage building that works in practice.
A store room is spacious only when belongings move in and out easily. Size it around bikes, tools and cupboards, including door width, ventilation and a dry base connection.
Living ideasA prefab bungalow: every living function on one level.
All living functions on one level need a thoughtful plan. In a prefab bungalow, daylight, privacy, storage and circulation matter as much as total floor area.
Living ideasA prefab guest house with room for privacy.
A guest space needs more than another bed. Decide how often it will be used and which facilities are needed, with attention to privacy, comfort and permitted use.
Prefab AanbouwExplore projects. Test your ideas.
Use design impressions to compare your ideas. They illustrate layouts and appearances; completed project references require project details and information from the contractor.
Prefab AanbouwReviews: experiences you can assess.
A review is most useful when the delivered work and timing are clear. Read it alongside the scope, communication and handling of any concerns.
Prefab AanbouwWorking at Prefab Aanbouw.
Good extension work needs careful preparation and reliable tradespeople. Interested in design, construction or finishing work? Discuss your experience and availability directly with us.
Prefab AanbouwThe extension blog: from an idea to a prepared plan.
Practical articles for better decisions before building. Read worked examples about costs, floor area and possible added value, and prepare your contractor discussion step by step.
Extension blogWhat will your extension cost? From size price to full budget
An 18 m² price seems easy to compare, but two figures may include different work. Three size examples and a clear sequence show what the estimate contains and what still needs discussion.
Extension blogComparing extension quotations: seven questions to ask
The lowest price matters only when the scope matches. These seven questions reveal differences in dimensions, finishes, work and responsibilities before you sign.
Extension blogFrom external size to living space: what really fits?
An extension covering 18 m² externally is not an 18 m² room. Three examples separate walls, furniture and circulation to help create a realistic layout.
Extension blogHow much value could an extension add? Use scenarios
More space does not automatically recover the construction cost. This example connects floor area, assumed value per metre and budget without promising a rise in value.
Extension blogPreparing an extension: what to gather for a site survey
You need not be a building expert to prepare well. The right photographs, measurements and questions clarify what needs investigation and which choices are already settled.
Extension blogSliding doors or a rooflight? Plan daylight from your layout
More glass does not improve light everywhere. Consider the original room, sun position and daily use to choose doors and rooflights that remain comfortable in summer.
All that's left
is to dream.
Choose dimensions, compare finishes and save your design. Start a conversation about your extension with a clear picture and an explained cost estimate.