Enfield Lock, Hertfordshire
Side return extension in Enfield Lock
Infilling the narrow passage beside a Victorian or Edwardian back addition. If you live in Enfield Lock and want to know what a side return extension would cost and whether it needs planning, start with the online guide price or a free site visit.
Enfield Lock and its postcode districts EN1, EN2 and EN3 are part of our Hertfordshire coverage. In Enfield Lock we check the boundary line and the neighbour's gutter before drawing a side return, because a few centimetres decide whether the wall goes on or beside the boundary.
Book a free site visit
Tell us about the house and we'll call to arrange a free, no-obligation visit.
How much does a side return extension cost in Enfield Lock?
A side return extension in Enfield Lock is priced at £2,440–£4,030 per square metre including VAT as a guide, before kitchen fit-out and fees. East of England prices run slightly above our West Midlands baseline; clay soils near trees are the main foundation variable.
| Size | Guide price inc VAT |
|---|---|
| 2 m wide × 6 m deep (12 m²) | £29,500–£48,500 |
| 2.5 m wide × 7 m deep (17.5 m²) | £42,500–£70,500 |
Your written price follows a measured survey and an agreed design, so it reflects your house, not an average.
Do you need planning permission for a side return extension in Enfield Lock?
Planning for a side return extension in Enfield Lock follows the English householder rules.
Side return infills and the side leg of a wraparound are treated as side extensions in England: single-storey, no more than 4 metres high and no wider than half the original house. They are not permitted development in conservation areas, National Parks or National Landscapes, and a joined wraparound often needs a planning application because the side and rear rules apply together.
The Party Wall etc. Act 1996 applies in England: you serve notice two months before work to a shared wall, and one month before digging foundations within 3 metres (or 6 metres for deeper foundations) of a neighbour's building. Neighbours can agree in writing; if they dissent, surveyors agree an award.
Conservation areas, National Parks, National Landscapes and the Broads restrict permitted development, and listed buildings always need listed building consent. Before any drawing we look up the property's history with the council, because earlier extensions and removed rights change the answer.
What are homes in Enfield Lock like to extend?
Enfield Lock mixes Victorian terraces with 1930s semis, so both side returns and full-width kitchen extensions suit houses here.
How a side return extension in Enfield Lock comes together
Survey visit
We visit free of charge, measure up, check access, drainage and neighbours' extensions, and note what you want the room to do.
Options and costs
We draw layout options and price each one, so the budget shapes the design rather than surprising you later.
Paperwork handled
Planning, prior approval or permitted development, Building Regulations approval, structural design and party wall notices are all handled by us.
Written price, then build
Once the design and approvals are in place, you get a fixed written price and programme, and we build through to sign-off.
Side return extensions near Enfield Lock
From Enfield Lock, the nearest places we also cover are Waltham Cross (1.1 miles) and Waltham Abbey (1.5 miles).
- Side return extension in Waltham Cross
- Side return extension in Waltham Abbey
- Side return extension in Ponders End
- Side return extension in Cheshunt
- Side return extension in Enfield Town
Other work in Enfield Lock:
FAQ
Side return extension questions in Enfield Lock
Can I get a price without a visit?
Our online guide-price tool gives a range in a couple of minutes. A written price needs a survey.
Can you match the brick or stone on my Enfield Lock house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
Is a side return permitted development?
Sometimes, as a side extension within the width and height limits, but not in conservation areas, and many terraces are in one.
How much does a side return extension cost in Enfield Lock?
As a guide, £2,440–£4,030 per square metre including VAT for a standard specification. For example, 2 m wide × 6 m deep (12 m²): about £29,500–£48,500 at that rate. Your written price follows the survey.
Can I live at home while the extension is built?
Usually yes. Most of the work is outside until the back wall is opened near the end, and that stage is screened off.
What postcode areas do you cover around Enfield Lock?
Including EN1, EN2 and EN3, and the surrounding Hertfordshire area.