Journal: Ideas & Insights for Sustainable Homes and Retrofits

Our Journal shares expert guidance, creative inspiration, and practical advice from eco-friendly, sustainable architects in London. Whether you’re planning a low-energy extension, a sensitive retrofit of a period property, or a future-ready new build, you’ll find insights here on Passivhaus principles, natural materials, and planning advice to help you create a brighter, warmer, healthier home that works beautifully today and tomorrow.

Greg Mathers Greg Mathers

Do I Need an Architect for an Extension?

You are not legally required to appoint an architect for an extension. But most London house extensions involve structural, planning and performance complexity that benefit from professional design leadership. This guide helps you decide.

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Greg Mathers Greg Mathers

Architect vs Builder

Architect vs builder explained clearly for London homeowners. Understand who carries design responsibility, who holds construction liability, and how different project structures affect cost, risk and accountability.

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Greg Mathers Greg Mathers

Ventilation in Period Homes

Ventilation in period homes was once accidental. As London properties are insulated and upgraded, airflow must be designed deliberately. This guide explains the full spectrum of ventilation strategies, from simple extract fans to MVHR, and how to coordinate them within a thoughtful retrofit.

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Costs & Budgeting Greg Mathers Costs & Budgeting Greg Mathers

What You Are Really Paying For When You Hire an Architect

When you hire an architect, you are not just paying for drawings. You are paying for judgement, coordination and the quiet work that protects your budget, comfort and long-term quality of life. This article explains the hidden decisions, research and problem-solving that sit behind every well-designed renovation, extension or retrofit, and why the real value of an architect often lies in the work you never see.

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Greg Mathers Greg Mathers

How Early Cost Planning Protects Your Renovation Budget

Early cost planning protects your renovation budget by testing decisions before they harden. As design information improves, cost confidence increases. Structured sequencing, not guesswork, is what reduces financial risk in London projects.

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Greg Mathers Greg Mathers

The Passivhaus Standard Explained

The Passivhaus standard is often described as the world’s most rigorous low-energy building standard. But what does it actually mean for homeowners, especially those retrofitting or upgrading an existing home? This guide explains the principles, benefits, limits, and real-world relevance of Passivhaus in plain English.

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Greg Mathers Greg Mathers

Extensions as Part of a Considered Whole-House Approach

Many extensions add space but fail to improve comfort or day-to-day living. This article explains how we approach extensions as part of a considered whole-house strategy, using performance intelligence to inform better spatial decisions over time.

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Greg Mathers Greg Mathers

A Considered Whole-House Approach

Most homes are improved in pieces. A considered whole-house approach helps homeowners make better decisions by coordinating performance, layout, and interiors over time.

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Internal vs External Wall Insulation for London Period Homes

If you are unsure whether internal or external wall insulation is right for your Victorian or Edwardian home, this guide will help you understand the benefits, challenges and planning considerations of each approach. You will find clear explanations written for London homeowners, with a focus on comfort, moisture safety and long-term performance.

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Retrofit & Sustainability, Period Homes Greg Mathers Retrofit & Sustainability, Period Homes Greg Mathers

Avoiding Damp and Mould in London Retrofits: A Homeowner Guide

Damp and mould often appear slowly in London period homes. Corners cool down, condensation gathers and a faint musty smell begins to show. This guide explains how insulation, ventilation and breathable materials work together to keep moisture moving in the right direction. A simple path to a home that feels brighter, warmer and easier to live in.

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Insulating a Victorian terrace in London: a practical guide

A Victorian terrace can be a wonderful home, but many lose heat quickly and suffer from cold rooms, condensation and rising energy costs. This practical guide explains how to insulate a Victorian terrace in London in a way that protects the original brick, manages moisture and creates a warmer, healthier home. You will learn where heat is lost, which materials work best and how to plan the upgrades in a sensible order.

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Insulation Scandal? Why Good Design and Oversight Matter More Than Ever in Retrofit

A government-backed insulation scheme meant to cut bills and carbon has left thousands of homes colder, damper, and in some cases uninhabitable. At the heart of the scandal is not insulation itself, but poor design, bad workmanship, and missing oversight. This blog explores why breathable materials, moisture-aware detailing and proper ventilation matter — and what homeowners can do to avoid the same mistakes.

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