House Extensions in Berkshire

Bright room with white walls, wooden floor, and exposed beam. Sunlight streams through two skylights and large glass doors, creating a serene, airy feel.

How often do you actually use your garage for a car? For most homeowners, the garage has become a dumping ground for bikes, tools, and things that never quite find a proper home. A garage conversion lets you reclaim that space and turn it into something genuinely useful.

At Nuova Home, we've been converting garages across Berkshire for over 20 years. We know exactly what's involved — from planning and Building Regulations through to insulation, electrics, and final finishes. We handle everything, so you can sit back and watch your unused garage become a beautiful, functional room.

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Extensions

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Conversions

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Kitchens

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Bathrooms

✳︎ Extensions ✳︎ Conversions ✳︎ Kitchens ✳︎ Bathrooms

Unfinished attic with plywood flooring and an open skylight. Several wooden panels lean against walls, revealing storage areas beneath. Bright, natural light.

WHY EXTEND?

With stamp duty, estate agent fees, and the upheaval of relocating, moving home can cost tens of thousands of pounds before you've unpacked a single box. A professionally designed home extension lets you create the space you need — and stay in the neighbourhood you love.

With over 18 years delivering extensions across the UK, we understand every nuance of the process: from navigating Permitted Development rights to delivering on time and on budget. Our in-house design and build team means a single point of accountability from day one to handover.

The image is a black and white photo of a brick building with a row of windows and a lamp. Scaffolding is set up on the side, casting shadows.

What's Included in House Extension

Full Design & Build Service:architectural drawings, planning applications, structural engineering and construction — all managed under one roof.

Planning Permission Experts:We handle all applications and liaise directly with local planning authorities so you don't have to.

Accredited & Insured:Federation of Master Builders member. All work is backed by a 10-year structural warranty and full public liability insurance.

Find the Right Extension for Your Home

  • A brick house with a modern glass extension featuring a large open door. Inside, a cozy living space with a sectional sofa and a dining area is visible.

    Single-Storey Extension

    Often Permitted Development eligible

    8–12 weeks build time

    From £1,500/m²

    MOST POPULAR

  • Two-story white house with a gable roof, featuring a small balcony and large glass sliding doors on the lower level. The sky is clear and blue.

    Double-Storey Extension

    Usually requires planning permission

    16–24 weeks build time

    From £1,800/m²

    BEST ROI

  • Two-story white house with a small patio. Glass doors lead to a bright interior. Bushes line the right side, and a chimney is visible. Tranquil setting.

    Wrap-Around Extension

    Planning permission required

    12–20 weeks build time

    From £2,000/m²

    DRAMATIC TRANSFORMATION

  • Modern house with large glass doors and a triangular window, opening to a green garden and tennis court. Indoor area features a cozy grey sofa, conveying tranquility.

    Orangery & Garden Room

    Garden rooms often PD eligible

    6–12 weeks build time

    From £25,000

    LIGHT & LIVING

FREQUENTLY

ASKED

QUESTIONS

  • Many house extensions in Berkshire fall under Permitted Development (PD) rights, meaning you don't need full planning permission. As a general guide, a single-storey rear extension up to 4m (detached) or 3m (semi/terraced) can proceed under PD. However, if you live in a conservation area, an Area of Outstanding Natural Beauty (such as parts of the North Wessex Downs), or a listed building, stricter rules apply and planning permission is almost always required. We recommend a free pre-application consultation with your local authority — and our team can handle this on your behalf.

    A renovation usually involves updating and modernising existing spaces, while a refurbishment is a more extensive overhaul that may include structural changes, rewiring, and replumbing. We handle both.

  • Costs in Berkshire typically range from £1,800–£2,800 per m² for a well-specified single-storey extension, reflecting the South East premium on labour and materials. A typical 20m² kitchen extension runs between £40,000–£70,000 fully fitted. Two-storey extensions offer better value per m² — usually £1,500–£2,200 — because you share the cost of foundations and roof. We provide detailed, transparent quotes with no hidden costs before any work begins.

  • Build times vary by size and complexity. A small single-storey extension (up to 20m²) typically takes 8–12 weeks on site. A larger single-storey or wraparound may take 12–18 weeks, while a double-storey extension usually runs 16–24 weeks. This is build time only — add 6–10 weeks for design, planning/PD checks, and structural drawings before work starts. We'll give you a precise programme at the start of your project.

  • In most cases, no. The majority of extensions are built from the outside in, and we take great care to protect your existing home with hoarding, dust sheets, and temporary weatherproofing. The exception is typically when we break through to connect the extension to the main house — this is usually a short period of 1–3 days. We'll plan this phase to minimise disruption and always discuss it with you in advance.

    • Yes — almost always. Building Regulations are separate from planning permission and ensure your extension is structurally sound, thermally efficient, and safe. They cover foundations, insulation, electrics, drainage, and fire safety. We submit all Building Regulations applications on your behalf and coordinate with the Building Control officer throughout your build.

Still have questions about your extension?

WE’D LOVE TO HEAR FROM YOU!