House Extensions and Loft Conversions in Haringey
Suddeco designs, gets approval for and builds extensions, loft conversions and renovations across Haringey. Designed, approved and built by one team.
Side return · indicative renderWhat gets approved in Haringey
Real planning decisions near you, from council records.
What Haringey council has approved around Haringey
Across 5 postcode districts around Haringey, Haringey council records hold 216 approved home projects. The most approved is loft conversions (95 approved, 19 refused). Garage conversions are where the detail matters most here: 4 of 11 decisions were refusals.
N8 takes in Crouch End, Harringay, Hillrise, Hornsey, Kilburn and Muswell Hill. Approved there: rear extensions on Hermiston Avenue, Tottenham Lane and Ferme Park Road; loft conversions on Rokesly Avenue, Hermiston Avenue and Hillfield Avenue; garage conversions on Hillfield Avenue.
N10 takes in Alexandra Park, East Finchley, Fortis Green, Friern Barnet, Highgate and Muswell Hill. Approved there: rear extensions on Pages Hill and Colney Hatch Lane; loft conversions on Pages Hill, Pages Lane and Colney Hatch Lane; basements on Pages Hill.
N15 takes in Harringay, Hermitage & Gardens, Junction, Seven Sisters, South Tottenham and Springfield. Approved there: loft conversions on Roslyn Road and Braemar Road; rear extensions on Roslyn Road and Braemar Road; wraparound extensions on Roslyn Road and Seaford Road.
N17 takes in Bruce Castle, Northumberland Park, South Tottenham, St James, Tottenham Central and Tottenham Hale. Approved there: loft conversions on Newlyn Road, Elsden Road and Hartham Road; rear extensions on Newlyn Road, Pembury Road and Elsden Road; side returns on Elsden Road and Lordship Lane.
N22 takes in Alexandra Park, Bounds Green, Bowes, Muswell Hill, New Southgate and Noel Park. Approved there: loft conversions on Ewart Grove; rear extensions on Ewart Grove and High Road; basements on Stuart Crescent, Wood Green and High Road.
28 approved, 7 refused
Rear extensions 17/4 refused · Loft conversions 8/2 refused · Garage conversions 2/1 refused · Basements 1
28 approved, 3 refused
Rear extensions 11 · Loft conversions 7/2 refused · Basements 5 · Side extensions 2 · Garage conversions 2/1 refused · Wraparound extensions 1
82 approved, 6 refused
Loft conversions 45/3 refused · Rear extensions 22/2 refused · Wraparound extensions 9/1 refused · Side returns 2 · Garage conversions 2 · Side extensions 2
42 approved, 15 refused
Loft conversions 18/8 refused · Rear extensions 14/5 refused · Side returns 3 · Side extensions 3/1 refused · Basements 2 · Wraparound extensions 1 · Second-floor rear extensions 1 · Garage conversions 0/1 refused
36 approved, 12 refused
Loft conversions 17/4 refused · Rear extensions 8/7 refused · Basements 7 · Side extensions 2 · Side returns 1 · Garage conversions 1/1 refused
Counts are decided householder applications within about a mile of each postcode district, read from public council planning records. They show what tends to be approved, not a promise for any one scheme.
What to know before extending in Haringey
Haringey runs from the Victorian terraces of Crouch End, Hornsey and Muswell Hill in the west to Wood Green and Tottenham in the east, and its planning picture changes with it. Across N8, N10, N15, N17 and N22, council records hold 216 approved home projects near those postcodes — with loft conversions the most approved type of work.
Much of the borough sits in conservation areas. There, a single-storey rear extension deeper than 3 metres (4 metres for a detached house), or any rear extension of more than one storey, needs a planning application rather than relying on permitted development.
Four areas with extra controls
Haringey Council made Article 4 Directions on 16 December 2019 in four conservation areas — Noel Park, Peabody Cottages, Tower Gardens and Rookfield Estate. In these, changes such as replacement windows and doors, which elsewhere need no permission, need an application.
Source: Haringey Council — Article 4 Directions. We check your exact address against these before we draw anything.
Planned around the house you have
Layouts shaped by the plot
Choose a layout that suits the plot, the structure and how you live.
Old and new join properly
Drainage, utilities and structural openings planned before they become snags.
Access kept in view
Residents, deliveries and trades all need a workable route through the site.
Start from a layout
Areas in Haringey
What we build here
Nearby boroughs
What to know before building in Haringey
Victorian and Edwardian terraces fill the west of the borough, with larger Edwardian houses on the Muswell Hill and Highgate slopes. Side-return and rear kitchen extensions, L-shaped dormer loft conversions and basement lowering are the jobs we price most.
Sloping streets around Muswell Hill and Highgate often need stepped foundations and careful drainage, which we allow for from the first estimate. We check your exact address with Haringey Council records before we draw anything, and price the whole job — design, approvals and build — in one estimate.
Where we work in Haringey
Crouch End, Hornsey, Muswell Hill, Highgate, Wood Green, Tottenham and Stroud Green.
Postcodes: N4, N6, N8, N10, N15, N17 and N22
A construction company near you in Haringey
Looking for a construction company near you in Haringey? Suddeco designs, gets approval for and builds extensions, lofts, renovations and new builds in Haringey — building company, general contractor and design and build firm in one team.
Haringey FAQs
Are you a construction company near me in Haringey?
Yes. Suddeco works across Haringey and every other London borough. We survey the site, draw and approve the design, and build it with our own team. Call 020 3633 8086 or book a free survey.
What construction work do you do in Haringey?
Extensions, lofts, conversions, renovations and new builds in Haringey, with the drawings and approvals.
What should we send for a Haringey extension or loft?
Plans or photos, the property address, notes on access and anything awkward such as drainage or shared walls. Or start with just your address and we draw the existing house.
Is my street in a conservation area?
We check it when you enter your address, alongside permitted development and nearby decisions.
Do you build it yourselves?
Yes. Suddeco designs, handles planning and delivers the build with its own project management.