Architecture & Planning Drawings

We Are Your Local Architectural Practice in South West London

We specialise in transforming London homes through carefully planned extensions, loft conversions, refurbishments, garage conversions, and outbuildings.
Each project is individually designed to maximise space, light, and practicality - always aligned with your budget, lifestyle, and planning potential
Our focus is to combine great design with successful planning and building control approvals

Malgorzata Kurzownik

Home Extensions and Loft Conversions Designed for Real Living

Your home should adapt to the way you live - not the other way around. Our architectural design and planning services turn cramped layouts into open, bright spaces that work better for daily life. Whether it’s extending your kitchen, converting the loft, or redesigning the ground floor, every plan is created with precision, comfort, and council approval in mind. We focus on buildable ideas that add lasting value to homes across South and West London.

about us modern rear house extension with landscaped garden
Established in 2011

Design & Planning Tailored to Your Needs

Just Extend Your House is a residential architectural practice specialising in house extensions, loft conversions, and refurbishments across Richmond, Ealing, Hounslow, Wandsworth, Merton, and Elmbridge. Established in 2011, we have completed more than 660 residential projects. Our work focuses on clear design, accurate drawings, and smooth planning approvals. You work directly with the lead designer, supported by trusted engineers and specialists.

Side and rear extensions, loft conversion and full internal refurbishment in a Richmond TW9 conservation area.

House extension, loft conversion and refurbishment. This makeover and almost full reconstruction is now a real home. 

Single storey and past first floor rear extension. Open plan kitchen and sitting area on the ground floor and small first floor bathroom extension.

Our Local Areas

Our Work Across South and West London

We maintain an exceptionally high planning approval rate across these councils.

Malgorzata Kurzownik
Every Space Count

Why Homeowners Choose Us

Practical Approach & High Approval Rate

We give realistic guidance on what each council is likely to approve and communicate openly throughout the process. Our specific approach and communication with planning department results in high approval rate.

Strong Referral History & Lead Involvement

Most new clients find us through recommendations from previous clients and local builders, a reflection of the trust built over many years. You work directly with the lead designer, ensuring consistency and clarity from the first sketch to approval.

Building Regulation & Safety

We make sure your design meets all required building regulations, including structural safety, fire protection, ventilation, and insulation standards. This ensures your project is built safely, legally, and to a standard that protects your home and your family.