Windows for North London Homes: A Guide by House Type

damiangoude

Oct 20

9 min read

The right windows for your home depend more on when and how it was built than on anything else. North London's homes tell the story of the railway and the Tube: Victorian railway cottages in Cricklewood, Edwardian avenues in Muswell Hill and Palmers Green, the Arts and Crafts houses of Hampstead Garden Suburb, and the interwar semis that followed the Northern and Piccadilly lines out to Edgware and Cockfosters.

This guide sets out the main types of home in Barnet, Enfield and Haringey, where each is most common, and the windows and doors that suit it best. It also covers the conservation area and Article 4 rules in each borough, including the extra consent needed in Hampstead Garden Suburb.

Aliluxe designs, supplies and installs aluminium, uPVC and timber windows and doors across London. Every recommendation here comes from what we see on surveys.

Victorian and Edwardian terraces

Most of Haringey and the southern parts of Barnet and Enfield were built up between the 1860s and the First World War, as railways and land companies opened up the fields north of the city.

Where you'll find them

Hornsey and Stroud Green: Stroud Green was begun in the 1860s and almost complete in the 1870s, and most of Hornsey was built between 1870 and 1914.
Muswell Hill: most of its streets and buildings date from about 1896 to 1913, when developers such as James Edmondson and W. J. Collins laid out avenues of large Edwardian houses.
Noel Park, Wood Green: a Victorian model estate of about 2,000 terraced houses, with architect Rowland Plumbe appointed in 1881.
Bush Hill Park, Enfield: the station opened in 1880, and the estate's busiest building years were 1904–08.
Palmers Green: the Lakes Estate was laid out in 1904 and built between 1905 and 1914.
Cricklewood: the Midland Railway built its Railway Terraces for employees from the 1860s.

What the windows are usually like

Timber sliding sash windows. In Muswell Hill the upper sash is often divided into small panes, and stained glass is common in front doors.
On later Edwardian houses, casements and bays took over from sashes. Bush Hill Park shows the change clearly.
Tall stairwell windows with stained glass, and panelled front doors with glazed panels.

What we recommend

Sliding sash windows keep the original look. REHAU uPVC sliding sash windows give the traditional proportions with modern insulation, and timber sash is the choice where the council requires it.
Keep the glazing pattern. If your top sashes are small-paned, the new ones should be too, with glazing bars on the outside of the glass.
For bays, use REHAU bay windows or match the sash style across all faces.
At the back, aluminium bi-fold or sliding doors open a kitchen extension to the garden.

Garden suburbs and cottage estates

North London has some of the best-known planned estates in England, from Hampstead Garden Suburb to the London County Council's cottage estates. Most are conservation areas with strict rules on windows.

Where you'll find them

Hampstead Garden Suburb: building began in 1907, to a plan by Raymond Unwin and Barry Parker, with Edwin Lutyens as consulting architect.
Tower Gardens, Tottenham: started in 1904, it was the LCC's first cottage estate outside the County of London.
Rookfield Estate, Muswell Hill: W. J. Collins's garden village of two-storey semi-detached houses.
Grange Park, Enfield: large Arts and Crafts houses built by Richard Metherell from 1907 to 1914.
Watling Estate, Burnt Oak: an LCC cottage estate of about 4,000 homes, completed by 1931.

What the windows are usually like

Timber casements with leaded lights in Hampstead Garden Suburb, and steel windows on many of its interwar houses.
A mix of timber sashes, casements and white-painted Crittall steel windows on the Watling Estate.
Small-paned cottage windows and dormers.

What we recommend

Hampstead Garden Suburb needs two consents: one from Barnet Council and one from the Hampstead Garden Suburb Trust. The Trust and the council say they 'have not yet seen a UPVC product which is acceptable' for the Suburb.
Timber or steel that matches the original is what these estates expect. Double-glazed timber or steel windows that closely copy the originals may be approved, with detailed drawings.
Where the originals were steel, heritage steel-look windows give the slim sightlines with modern performance. Check with the council first in a conservation area.
Outside the protected areas, flush sash windows give a cottage look with low maintenance.

1920s and 1930s semis

The Tube turned North London's farmland into suburbs between the wars. Golders Green's population quadrupled between 1911 and 1931 after the station opened in 1907.

Where you'll find them

Edgware and Mill Hill: the Tube reached Edgware in 1924, and private semi-detached houses spread over the farmland around Edgware in the 1920s and 1930s, while 1920s Mill Hill was mostly large detached houses.
Meadway Estate, Southgate: mock-Tudor detached and semi-detached houses, built after the roads were laid out in 1923–24 and largely finished by 1929.
Southgate and Cockfosters: the Piccadilly line 'transformed Southgate' in 1932–33.
Along the Great Cambridge Road: 21 estates of about 2,500 houses were approved east of the road between 1931 and 1937.

What the windows are usually like

Timber casements, often with leaded lights in the top panes, set in a two-storey bay.
Steel Crittall windows on some estates, especially Moderne-style houses.
A recessed porch with a glazed front door.

What we recommend

Casement windows suit these houses best. REHAU uPVC casement windows are good value, and Origin OW-80 aluminium gives a slimmer, flush finish.
For the bay, REHAU bay and bow windows keep the original shape. Ask about a structural check, as many 1930s bays have no proper lintel.
For the period look, add leaded or Georgian-bar patterns to the top lights only.
At the back, French doors or a wide sliding door open the house to the garden.

Historic villages

North London still has old village centres on its hills and at its edges, most of them conservation areas with long-standing Article 4 directions.

Where you'll find them

Highgate: Haringey's oldest conservation area, designated in 1967.
Monken Hadley, Totteridge and Mill Hill: Barnet villages with Article 4 directions dating from 1970–72.
Forty Hill, Clay Hill and Enfield Town: older settlements in Enfield, all covered by Article 4 directions.

What the windows are usually like

Georgian and early Victorian timber sashes.
Small-paned cottage casements.
Many listed buildings, where the original windows are part of the listing.

What we recommend

Listed buildings need listed building consent for any window change. Timber is usually expected, and secondary glazing is often the most practical upgrade.
In conservation areas, timber or flush sash windows are the closest match. Check with the council before choosing uPVC.
Every opening is measured individually, so frames fit older walls that are out of square.

Mansion flats, council estates and modern homes

North London also has a large stock of flats, from Edwardian mansion blocks to post-war council towers.

Where you'll find them

Mansion blocks: Ravensdale Mansions in Crouch End (47 flats, 1908), and 1920s–30s blocks in Muswell Hill.
Council estates: Edmonton completed 3,911 houses and flats between 1945 and 1963, though 1,248 of them were at Potters Bar and Cheshunt, and two 23-storey towers opened in 1968.
Enfield Highway and Addison Road: council housing from the 1930s to the late 1960s.

What the windows are usually like

Timber sashes in mansion blocks, often with a pattern set by the freeholder.
Steel or early aluminium windows in post-war blocks.
First-generation uPVC from the 1980s and 1990s, now reaching the end of its life.

What we recommend

Tilt and turn windows for flats and upper floors, as they clean easily from inside: REHAU tilt and turn.
Slimline aluminium for a modern look with more glass: Origin OW-70.
Flats need the freeholder's consent, and planning permission if the new windows look different.
Houses on post-war estates usually have no restrictions, which makes them the easiest to upgrade: REHAU uPVC casement windows or aluminium.

Conservation areas, Article 4 and listed buildings in North London

Before you choose windows, check three things with your council: whether your home is listed, whether it is in a conservation area, and whether an Article 4 direction applies.

Most houses, including houses in conservation areas without an Article 4 direction, can usually replace windows without planning permission, as long as the new ones are similar in appearance to the old (Planning Portal).
Flats and maisonettes don't have the same permitted development rights as houses. Identical, like-for-like windows usually don't need permission, but windows that look different may, and if you're a leaseholder you may also need consent from your landlord, freeholder or management company (Planning Portal).
Listed buildings need listed building consent for any significant works, inside or out, including windows (Planning Portal).
An Article 4 direction removes permitted development rights, so even a like-for-like replacement can need an application. Many London councils use them in conservation areas, and the ones that cover windows are listed below.
Barnet: Has 16 conservation areas, 10 of which are covered by Article 4 Directions, including Hampstead Garden Suburb, Mill Hill, Totteridge and Monken Hadley. These directions restrict certain permitted development rights, potentially including window alterations, depending on the specific direction. In Hampstead Garden Suburb, changing windows, even in detail, material or colour, requires consent from both Barnet Council and the Trust where the relevant controls apply (Barnet Council).
Enfield: has 22 conservation areas (Enfield Council). Article 4 directions made in 2006 cover replacement windows on elevations facing a highway or open space in 10 of them, including Bush Hill Park, Winchmore Hill and Southgate Green. Enfield Town has had its own direction since 2017, and further directions from 2008 and 2009 cover Grange Park, Meadway, The Crescent and Abbotshall Avenue (Enfield Council). The council's Bush Hill Park appraisal treats uPVC replacements as a loss of character.
Haringey: has 28 conservation areas. Article 4 directions covering windows and doors apply in Noel Park, Peabody Cottages, Rookfield Estate and Tower Gardens (Haringey Council, Haringey Council). The Noel Park guidance says 'UPVC replacement windows cannot replicate the appearance of original windows' (Haringey Council).

Work done without the right consent can lead to enforcement and the windows being replaced at your cost. We check these rules for every survey, and can help with the application if one is needed.

North London boroughs at a glance

Borough	Typical housing	Conservation areas	Windows that often suit
Barnet	Hampstead Garden Suburb, interwar Golders Green, Edgware and Mill Hill, Watling Estate, Victorian Cricklewood	16	Casements, steel-look, timber in Hampstead Garden Suburb
Enfield	Edwardian Bush Hill Park and Palmers Green, interwar Southgate, post-war Edmonton	22	Sash and casements, check Article 4 in most areas
Haringey	Victorian Hornsey and Crouch End, Edwardian Muswell Hill, Noel Park, Tower Gardens	28	Sash, timber in Noel Park

Frequently asked questions

Can I fit uPVC windows in Hampstead Garden Suburb?

Very unlikely. Window changes need consent from both Barnet Council and the Hampstead Garden Suburb Trust, and both say they have not yet seen an acceptable uPVC product. Timber or steel windows that match the originals are the way to go.

Do I need planning permission for new windows in a North London conservation area?

It depends on the area. Enfield has Article 4 directions covering windows on front elevations in many of its conservation areas, including 10 under its 2006 direction, and Haringey has directions covering windows in Noel Park, Peabody Cottages, Rookfield and Tower Gardens. Elsewhere, like-for-like replacements are often allowed. We check your street at survey.

What windows suit an Edwardian house in Muswell Hill?

Timber or uPVC sliding sashes with the original pattern, which is often small panes in the upper sash. Keep any stained or leaded top-lights, or have them copied.

Do I need permission to replace windows in a flat?

Often. Identical, like-for-like replacements usually don't need planning permission, but windows that look different may, and rules vary by council. If you're a leaseholder, check your lease, as you may also need the freeholder's or management company's consent.

Do you cover my part of North London?

Yes. We work across Barnet, Enfield and Haringey, including Finchley, Golders Green, Edgware, Southgate, Winchmore Hill, Muswell Hill, Crouch End and Tottenham.

More window guides

We have guides like this for Surrey, Kent, Hertfordshire, Hampshire, Sussex, Buckinghamshire and Berkshire, and for Central, South, East and West London.

Get a free survey

Tell us about your home and we'll recommend the windows that suit it, check whether it is listed, in a conservation area or covered by an Article 4 direction, and give you a fixed quote. Call 020 4581 8351, email sales@aliluxe.co.uk or request a quote online. You can also browse our uPVC windows and doors and aluminium windows.

Please note: This guide is for general information only and is not planning, legal or professional advice. Planning rules, Article 4 directions and council guidance change over time, and how they apply depends on your property, so always check with your local planning authority before you start work (and with your landlord, freeholder or management company if you're a leaseholder). Replacement windows and doors must also meet Building Regulations. Historical and local details come from council, Historic England and other published sources and were believed to be correct when this guide was written in October 2026. Aliluxe cannot accept responsibility for decisions made solely on the basis of this guide, and we'll confirm the rules that apply to your home at survey.