Hundreds more students will be enrolled at two schools after plans to expand were approved.
The proposals put forward by White Meadows Primary School in Whitelea Road, Littlehampton and Seaside Primary School in Freshbrook Road, Lancing, will see both schools swell by 210 pupils.
Both expansions were approved by West Sussex County Council's planning committee at County Hall in Chichester on Tuesday.
This was in spite of White Meadows' plans receiving 52 objections.
A spokesman for West Sussex County Council said: “We are pleased the schemes have been approved.
“This is all part of an ambitious capital programme that has been underway for some time designed to meet the increased pressure for primary school places.
“In total we expect to be putting in some 6,000 extra places across the county.”
The plans for White Meadows Primary School include extending the school to three form entry, including eight classroom extensions, an extension to the hall, studio, storage and kitchen and changes to the parking areas.
Among the objectors was Littlehampton Town Council, concerned the impact bigger schools would have on roads during pick up and drop off times.
An additional 120 school places will be provided as a result of the development and 90 pupils currently taught in temporary buildings would move to permanent built classrooms - taking the school population to 630.
Seaside Primary School applied for a single storey extension for seven new classrooms and two additional rooms, as well an extension to the main hall.
It was also approved, despite residents concerns about noise, highways congestion and pollution from increase in traffic.
The proposed extensions will allow the school to increase from two classes of each year group to three - an increase in the school roll from 460 to 630.
The school said more places were needed for pupils to meet future demand.
Neither school was available for comment when contacted by The Argus.